Question about Samsung DLP HL-P5663W 56" TV

38 Answers

Samsung DLP TV shuts off

I have a Samsung DLP TV, model HL-S5086W that intermittently shuts off after about half an hour. Once it is warmed up, it can shut off once an hour or ten times an hour.

I have a Samsung DLP HLN50 - the Temp light flashes and the TV shuts off-Sounds simple? It's not - The TV can be off for days (so no way it's hot) the second you turn it on - the Temp light flashes and it shuts off - you have to wait and wait and when it finally shuts off - quickly turn it on again. Over and over and over.
We have cleaned the vents and have it far from the wall with a big fan blowing across the back (not directly INTO). -- It's been doing this for a VERY long time - Now , it will only stay on 5 min. or so. As it shuts down, it gives a little 5 note tune. I can turn it on again in a few minutes, but then after another 5 or so minutes it shuts itself off. I think it's trying to tell me something-but I don't know what ? It's probably something simple and I don't want to pay a fortune to a repairman , the TV's have come down in prices in the last few years- still can't afford one right now, so I need to fix this one. Thanks

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  • longwaytogo Feb 16, 2008

    I wrote the longer version of the shutting off problem above. We read all the advice we could find (scant) and decided on the cheapest first, before buying a color wheel, light, etc... We took off the back and another cover over the plug-ins (whatever they are called) and vacuumed out the inside as well as possible. Then we unhooked the temp sensor and then tried turning on the TV (won't turn on without temp sensor plugged in or at least covered ) then we plugged in the sensor and left the back open and ran the TV to see what would happen. --- We ran the TV, turned it off and on during the day. (It usually takes 7-8 tries) and recently , as you see above , it was shutting off after only 5 minutes or less over and over.

    It has been working fine since we did these two simple things (so far-so good) --- We have been able to turn off the TV without the temp light flashing and the TV has stayed on just fine.

    We don't know if this is a temporary fix or if this was the problem. We knew it had to involve the temp sensor, because the TV could be stone cold and the temp light would flash and not allow the TV to come on, and when it did finally come on , only stay on for a few minutes. Hope this helps someone !

  • Anonymous Feb 20, 2008

    i have a 56" dlp that keeps shutting off. sometimes it does it 20min in or sometimes 5 min later. don't know if its the lamp or fan temperature problem. don't just want to replace the lamp if its not the issue. i can hear what i guess is the wheel when it stops spinning but i don't hear a fan like i did before after you shut the tv off. please help any solution?

  • stevego Mar 11, 2008

    my set does the same thing I replaced the lamp does the same thing.where is the temperature sensor in this unit .samsung hln 567w

    both fans are running fine color wheel was replaced a few years ago.

  • Anonymous Mar 12, 2008

    We have the same problem. Had a repair man come. He used canned air to blow some dust from the back of the tv, but it did not help. He said he can't fix it if he doesn't see it happening. Of course, it never shut off the 15 minutes that he was here. Cost us $90.00 for nothing.

  • youngmscc Apr 17, 2008

    Damn this sucks, I have the same problem... Samsung DLP .... I have read many threads and all the same problem, turn it on, temp light "red" comes on and it shuts off, we scream a little and swear at the TV, do it again, and again, again... but it does not listen... I am so tired of dealing with this... I can't keep dropping money into the tv for repair men that don't know what to do about it.

  • lamar73 May 08, 2008

    Have Samsung 61" DLP TV. Turn it on, it goes off. Does this 3 or 4 times before it finally stays on. The indicator lights on the front of the tv are no longer on but still have picture. What's my problem? TV is 14 months old.

  • mdass May 15, 2008

    I have a samsung dlp rear projection tv HL-S5086W and it keeps shutting off constantly. Even I play my playstation or watch tv . keeps shutting off almost every 5 minutes and sometimes I don't have any problems for days. It's got a mind of it's own. Anybody got any ideas.

  • Demadjess May 20, 2008

    I read all the post and decided to tear into mine (50" Magnavox dlp).As everyone else,I tried cleaning the dust and putting a fan behind it,The fan worked for a while but it still shut down.

    As I took it apart I noticed that the temp thermal coupling was mounted on the plastic housing for the bulb and there was a screw touching the top of it.when I pulled on the wires the coupling moved a little (away from the screw). I moved the wires to hold the thermal coupling in the position not touching the screw.I turned it on and it is still on.

    I am a maintenence tech and from that I know a little about thermal couplings and know there is a big difference in heat transfer between plastic and metal. The screw is there to keep the coupling in place...Not to transfer heat to the coupling.

    I don't know if this is the same on the Samsung, but it might be a standard on DLP units.

    Hope this helps.

  • Anonymous May 25, 2008

    where can i find a color wheel light

  • Anonymous May 28, 2008

    I had the very same problem and thanks to this site it was `a quick fix. All I did was take my compressor and blow air at 90 psi into all the vents in the back. It worked!

  • Anonymous Jun 22, 2008

    where is the temperature sensor

  • Anonymous Jun 22, 2008

    where is the temperature sensor

  • juanaman8 Jun 29, 2008

    I have the same problem with the Samsung DLP 85086w.  I'm going to try and do what you did. Wish me luck. 

  • Anonymous Aug 01, 2008

    Here is how I fixed he problem. I got hints from some of these postings and after I took the rear cover off and looked at it, I tried this and it worked. There is an access cover to replace the lamp on the right side. It is soemwhat hard to see because it is meant to blend in. There is a rubber button with "lamp" by it. You need to use a screw driver or something to pry off the rubber button and remove the screw. This access panel slides forward to reveal the insides. If you look inside to the rear, you will see a switch that a fin on the access panel depresses to indicate that it is seated. This was my problem. The switch was on the edge of being fully depressed and perhaps when it was heated, the thermal expansion of the parts deactiveted the switch. I had the back panel off and it was easy to see that the switch still had play when the panel was installed. My remedy was to put a couple of strips of masking tape over the panel fin so that it depressed the switch farther when it was slid in. This solved the problem. It is easier to see wherr to pace the tape if you remove the rear cover.

  • Anonymous Oct 09, 2008

    I have a Samsung HL-P4663W that had the same problem. I removed the Lamp access panel and stuck a double layer of electrical tape on the small protrusion to increase the amount of detent of the little blue leaver switch, reassembled and problem solved. Thanks for the advice.

  • nicolepeirce Nov 01, 2008

    We have the same problem and are trying several of these suggestions. Wish us luck! Thanks!

  • gsxr1mg Nov 16, 2008

    I have a samsung (dont have model number right now) 52" dlp. It shuts off after about 5 mintues and the temp and lamp button flash. I can turn it back on but again after 5 minutes it shuts off. I took off the back covers and cleaned it very well so it's free of dust nad obstructions. I called samsung but they said since I don't have sound when it shuts off it is probably not the lamp. Could it be something with the power control system or something. I did notice that it has a cover switch located near the back cover over the lamp, the mouting plate broke. I tested it by holding the switch down and using tape to keep it in place but this did not solve the problem either.

  • denabridges Nov 26, 2008

    Randomly turning off one minute in up to randomly many times an hour. It has a mind of its own.

  • Anonymous Dec 01, 2008

    I have the exact same problem! What's going on?

  • bakerbradley Dec 15, 2008

    where is the temp sensor located? ive already cleaned the weak fan and depressed the blue switch, any advise would fantastic, i called samsung and recieved two different sets of advise,i, replace the bulb wich runs 175-200 cant afford and finally replace the fan not a expensive fix but i would like to try to re plug the heatr senssor first thanks for all the post..

  • jljtheshoug Dec 17, 2008

    Our 50" Samsumg DLP Model #HLR5078W is now doing the same thing. It started about 6 weeks ago and progressively gets worse by the day. It sometimes goes on and stays on for the evening - other times we spend our time trying multiple restarts and then it might stay on for the duration. This TV is merely 3 years old and we have already had to replace the "guts" to the tune of over $900. This was just after the 1 yr warranty was up (go figure) and SAMSUNG offered a "too bad" attitude. We vowed at that time that we would NEVER OWN OR BUY ANOTHER SAMSUNG PRODUCT - but in the mean time we don't have the $$ to replace the tv. Sounds like this is another DEFECT that they will not support - We only hope that they suffer big time during this economic downturn and that they don't get a bail out. We appreciate the suggestions and will try the consensus before we shove this TV over the next cliff - or maybe we will haul it down to the busiest TV store in the area and bring it in for a replacement of another brand - voicing our displeasure with SAMSUNG so that others won't get taken with their $3000+ purchase! Better yet, maybe Sony will give us a new TV just to be a spokesperson against SAMSUNG. Thanks for the suggestions.

  • sam_has_sung Dec 18, 2008

    Have a samsung dLP model HL-S5086WX/XAA - TV has worked fine for over 2 years with great picture quality, but now is shutting on and off frequently. Help

  • VAUGHNANDRE Jan 20, 2009

    I HAVE SAMSUNG HL-R4667W AND AFTER A FEW SECOUNDS IT THE PIC GOES DARK BUT THE TV STILL ON AND I TRY TO CUT IF OFF AND IT WONT DO ANYTHING.

  • Anonymous Jan 28, 2009

    yes same unit shuts off

    samsung wants to say it is firmware

    does anyone know

    does anyone want to mount a class action

  • MajorNinth Mar 07, 2009

    I have what sounds like the same problem, but am not sure how to go about taking off the back cover, etc to try and vacuum it out myself as the original submitter was able to do. The other problem is that given the size of the unit it will be difficult to even carry it into a shop for repair.

  • glazyjo Mar 07, 2009

    Ditto to what you said. I will try your fix

    Thanks a million Mine Is a HL S5086W and does the same durn things!!!

    Very infuriating.

    For several months this set turns itself off, doesn't have ventilation problems and may go off as many as 6 times before it stays on. Once on it has clear bright color and is perfect in every way.

    It make a hard to explain/describe noise when turning off and resuming, a little kinda cute tone for off and sometimes a high pitch humm type sound. Set is about 2 years old.

    No reply necessary, jut adding another one in the same boat.


  • MrLee30 Mar 25, 2009

    I have a 56'' HLP 5663W that I changed the color wheel on but the colors came up inverted. I then put the old wheel back in and now my tv will not turn on. I have a lamp and temp light flashing now. any help would be apperciated. This is the first time I have had a problem since I purchased the tv back Jul 06. Now I can't even trn the tv on because of the flashing lights.

  • Larry Owen
    Larry Owen Mar 05, 2013

    mine is doing the same//i have machinist skill`s & gabricating way`s, //i have done about all/i mno it was a bad desighn//can`t get the code reset to function, may fix mit ???

  • Mary Shahbaz
    Mary Shahbaz Jun 07, 2014

    I took the.back cover off, but could not locate blue switch on right corner of back panel. Would you please let me know how to find it?

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38 Answers

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I had the same problem and stumbled on the fix. It seems there is a factory defect. Open the lamp cover and you will probobly notice that the blue shut off switch on the left side is landing on top od the lamp cover. Reach down with a pencil or something and make sure the switch is under the tab on the lamp cover. My 50 DLP has not shut down since I set the switch properly. Free fix... try it.

Posted on Jun 25, 2008

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  • Tif May 24, 2012

    We have this problem with our samsung 50 dlp tv (5 yrs old) we replaced the bulb but the tv kept shutting on and off while making a humming noise, indicator lamp light flashed a few times then it went off again. We tried this fix making sure the blue switch was depressed by the black cover (that covers the lamp housing)... if this does not work then try looking at the main power supply board for bulged or fluid coming from the capacitors. The blue switch was our fix though. Thanks bwells55

  • maxsmith179
    maxsmith179 Sep 07, 2012

    Thank you bwells55, exactly what it was!!! It's a little rubber like plastic piece in bottom right corner of the back of the tv...I took a piece of tape and taped it up before I put cover back on and the blinking went away...so I immediately took the tape off and put the cover back on carefully and the back of the cover raised it up for me with the pressure of the back being on securely!! Thx again!!

  • Ray 50 inch Samsung DLP

    Yep - Was having the same problem for the past month (march) on a 5+ year old Samsung DLP 50 inch. Took off the lamp cover access panel and saw the blue switch on the left. It is suppose to sit under a little tab that extends out from the access cover. I used a little wire tie (like from a loaf of bread) to tie the blue switch down. Probelwm has been resolved in less than 5 minutes. Took me longer to dust TV stand area from when moving the TV to access the back. LOL. The date of this fix and comment is 03/24/2014.

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Didn't work for me :( I have had the same symptoms for over a year, my Samsoung DLP 61in is about 3 yrs old...goes through phases of cutting out and flashing the 'Stand By/Temp' light. Usually after a few tries it will come back on or I just give up for a day. Now its back to the point where it does it within 5seconds of the tv coming on = zero watchability! I tried the easy solutions of taking the back panel off, dust-busting, plugging and unplugging the sensor, and taping the blue lever down...But the same symptoms still proceed!! Can anyone offer any additional help?!?!

Posted on Nov 30, 2009

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Our 50" DLP began shutting off soon after it was turned on. The set is 2 years old and I didn't think the bulb should be out so soon. Major tech store told me new bulb was needed. Samsung website said we needed to send it in. I read the suggestions and the blue lever behind the back cover was the problem. I took off the cover. Then I used a small wad of scotch tape on the underside of the extention on the cover to help get the blue lever down and to hold it down( No sticky side out. Just smooth.) I replaced the cover. The TV hasn't turned off by itself since. What a wonderfully, easy, cheap solution! My husband was sceptical, but is now amazed!

Posted on Mar 02, 2009

  • rfhayden Jan 22, 2011

    We have a 46" DLP and after 3 years have begun to have the same problem of cutting off as soon as it was showing a picture. I also use duct tape to hold the blue lever down and now it seems to be fixed.

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I had the same problem. Samsung DLP, extended warranty just ran out, started shutting off all the time. After a little internet research I figured out the common problem was the blue switch behind the cover over the projection screen. Samsung has a web page showing this switch and suggesting that it is not being positioned correctly when the cover is replaced.

http://ars.samsung.com/customer/usa/jsp/faqs/faqs_view.jsp?isARS=Y&SITE_ID=1&AT_ID=83523&ARS_ID=6223298

That doesn't make sense because most people have this problem without ever opening the cover.

I took the cover off, unplugged the connector to the switch board, and installed a short piece of copper wire with one end in each of the two sockets of the plug. This closed the circuit like the switch is supposed to do. The TV works great now.

Apparently the switch is defective and breaks the circuit now and then. This happens mostly after the TV gets a little older. It is a safety device to protect against someone getting burned or shocked when the cover is off so just be careful and keep the cover in place.

Posted on Dec 30, 2008

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I just started having the same intermit shut off with my hln5065 dlp. I just cut the wires going to the blue lamp cover switch and soldered them together and taped them. No more random shut off problems anymore. I was worried I would have to start throwing parts at it because it can quickly add up to coming close to the cost of a new TV.

My advice is to take care of that switch before you start having problems.

Posted on Jun 20, 2009

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Had the same shut off problem for months. Dusting and a little fan helped quite a bit. I had already made sure the blue switch was down under cover. I was afraid to disconnect temp sensor for fear it might actually be overheating and become a fire hazzard. Following advice gathered here, I taped the blue switch down with electrician tape (went the length of the switch to the metal base down below. Then I built up the contact plate on the cover to keep it way down firmly. I have let it run up to 12 hours without the fan and it hasnt shut off once since!!! Its very easy to just remove the lamp cover and do this. thanks to everyone!!!!!

Posted on Oct 01, 2009

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I have seen the same complaints over and over again....intermittently shutting off. Of course, it's intermittent, so the next step is for the repair techs to throw parts at it....and then hundreds of dollars later, the problem still exists.

I developed this problem on my Samsung 5067 DLP... Intermittent shut off. Of course, I replaced the lamp as a first step - no dice. I later pulled everything out, cleaned away the dust, manually tested the fans by applying an external 12V supply, etc..I also moved my TV away from the wall to allow more ventilation - the issue persisted.

My gut instince said it had to be heat related.... the area by the bulb gets very hot, and I could feel very little air exiting the TV at the rear vent.

I went to Radio Shack, bought a 120V 4" fan - basically meant for PC's, electronics, etc. I zip tied this to the back of my TV, just above the access cover for my lamp (it basically sits over the access door, but I attached it to the rear cover just above with two zip ties so I can still access my lamp without removing the fan). I made sure the it was exhausting the hot air from the TV to the outside - no use in blowing air into the TV at this location, since you want it to vent! I also installed a Rheostat on the fan so I can adjust the speed - this reduces noise and load on the fan. Mine runs at about half speed.

You can now reach around the back and feel very warm air exhausing out the back. The problem has not reappeared and the TV works great. Basically, the design is a corridoor inside the TV, where a fan pushed air from the front of the TV, through a plenum, around the lamp, light engine, etc., and ultimately out the back. The fan sits pretty far back, and clearly doesn't move enough air to properly vent the TV. This is also where the temp sensor is located. BTW - I wouldn't advise disabling the temp sensor - it's there for a reason, and you could jeopardize safety by tampering with this (for testing, you can disable it by putting a resistor in it's place - simply disconnecting won't work).

So, knock on wood...mine is great. A little bit of a pain, since I have to manually shut off the fan...but well worth the $25.00 to solve the issue! This took me about 20 minutes to install, and as I said, you can feel the hot air venting - prior to doing this, I hardly felt anything coming out of the back. And if this heat isn't venting, it eventually circulates and raises the temperatur under the cover by several degrees... Seems Samsung should have done a better job on the cooling / venting.

Posted on Mar 10, 2009

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Same problem and this saved me 150.00 on a new lamp or color wheel or balast that i thought might have been the problem. fixed for free... i love it

Posted on Jun 12, 2009

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Hello all who have posted here. I just finished a 2 hour on line service thread and then called Samsung service department. None were of any help and all tried to avoid the manufacturing defect in these TVs. I pointed out to them that what they tried to tell me they knew nothing about was all over the Google site and if they would take a minute and Google their defect we could have a responsible conversation. No deal; this is not their problem. They are willing to set up service but the charge is on me. We all know that this is their manufacturing/design defect. I want to bring this to our FL AG consumer affairs dept and begin a class action to either have Samsung cure their defect or recall all of them. We are all entitled to compensation for their defect and for being good customers in the first place.
Let's get the class action suit going and I'm sure once Samsung sees that their reputation, what is left of it, is harmed and their sales begin to slide more than they are, maybe they will decide to become a good corporate citizen and fix their design flaw for all of us or take their TVs back.
Go to your respective AG consumer affairs dept today and file a complaint. I'm going to contact a class action lawyer here in Tampa today and give what I have learned to him and try to get it started on my end. Please do the same wherever you live.
Larry

Posted on Apr 26, 2011

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Ok, so I have a 52 DLP Samsung. You turn it on, it comes on dims out and then the picture goes black and then the tv turns off! I have tried the blus witch thing with no success. All three lights blink on the front of it. I don't know what to do. This thing is only 3 years old!!

Posted on Jun 05, 2010

  • JUST MAYBE Jan 19, 2011

    50" DLP from Samsumg. HL-P5063W. I had the same issue of 3 minute shut off issues. So I found this step somewhere on the web. This step has did the trick and has not shut off again.

    NOTE: You will have to re-set everything as far as your sound, color, Picture quality ETC. AFTER this step.

    This is a quick reference guide to show you how to reset your Samsung DLP TV’s lamp hour meter or hour counter. Resetting the counter is a very simple proceedure.

    HOW TO RESET YOUR LAMP HOUR METER:

    Begin with the TV powered OFF.

    Point your remote towards your TV.

    Press:

    Mute 1 8 2 Power. Buttons pressed consecutively but as fast as you can and NOT same time.

    Your TV set should now say “Loading Factory”.

    Browse down to “Option” then press Enter (or the right cursor button).

    NOTE: The Mute 1 8 2 buttons needs to be pressed down consecutively and fairly quickly. If your TV does not enter the service menu after using this combination, you can substitute MENU instead of MUTE. This seems to work for some sets. Also, the right cursor arrow also acts as the ENTER button, so try it if you’re having difficulty with the ENTER button.

    To exit the service menu, hit press the EXIT button or just turn off your TV (remember not to turn on your TV immediately afterward!).

    Wait atleast 30 seconds. I sure hope this helps many of the folks out there. If it did/didn't please post reply.

    I am NOT endorsing this method. Use at own risk. But did work for me. As easy as 1-2-3.

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Thank you, Bwells55!  Your suggestion solved my problem.  I had to reach in with a long thin screwdriver to flip the switch down and then shut the cover quickly.  It is darn near impossible to get that cover on with the switch in the proper position.  What a pain.  But now it's working and I'm happy.  Thanks!!!

Posted on Jun 28, 2008

  • rhood55 Jan 09, 2011

    I just performed the switch fix myself about five hours ago and so far it has worked. I also found it impossible to hold the switch down and close the door. The design flaw is that the switch is not long enough for the door to engage it and keep it engaged.. So, I got my electrical wire connector kit out and found a small **** splice to slip over the switch and elongate it. The door easily closed on top of the switch and it cannot dis-engage due to moving the tv or expansion/shrinkage of the plastic door from heat.

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I have a Samsung DLP 61" inside an entertainment center. Kept turning off after only being on for a minute or so. This went on for several months. I installed a 110V computer fan on the outside of the vents to take the hot air out of the unit. My TV has never turned off again. I plugged the Computer fan into my cable box so it goes off with it to limit the fan noise when not in use..


John

Posted on Apr 29, 2008

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As others are talking about, the blue switch on the lamp door in the back can be an issue as well as the lamp and of course overheating. Here is what I have done to resolve the issue of the TV randomly cutting off.
1.) Fix the switch issue: Unplug the TV. Open the lamp door. Clip the wires on the lamp door switch (I clipped about mid way in the wire so I could reconnect if needed), strip the wires and twist them together. Add a wire nut and/or electrical tape. Free and instant fix to the blue lamp door switch issue.
2.) Install an additional fan to prevent overheating: I installed a typical square computer case fan in the rear of the TV and powered it over USB on the TV so it would cut off when I turn off the TV. I used a 12v fan even though the USB port only provides 5v of power. The fan doesnt run as fast as it would with 12v but it still provides circulation.
So to do this, take an old USB cable and clip it. Strip it down so you can see the wires inside. The red and black are all we are concerned with. Ignore the green and white wires and the outer silver shielding wire. Strip the fan wires and twist red to red and black to black. Wire nut and/or tape on the connections. To test, plug it in to your PC. Fan should power up.
Next install the fan in the TV. Make sure the air flow direction does not conflict with existing fans in the TV. Ideally an exhaust fan (blowing the hot air out of the TV) would be best however in my case, on the 50 inch where I was installing, I couldn't exhaust air due to another fan close by pulling air in. With that said, I installed the fan to pull air in. On the 50 inch, there is a perfect spot just inside the lamp door (to the left) for a case fan. Its a perfect sized square that the fan will fit in to and doesnt require any screws to keep it in place. However if needed, drill some holes in the TV case and use case fan screws to attach. Some common sense and creativity here is all you need. This sounds long and complicated but just use your head. If you have built PCs you should understand voltage requirements, wire polarity, etc. and shouldnt have an issue.
Once installed, plug the USB connection in to the TV, replace lamp or case covers and power on the TV. The fan should come on when the TV is on and should go off when the TV is powered off and the TV is cooled down.
I only have 1 USB port on my TV but if I had more I would install more fans this way. You could also use a 12v DC wall adapter to do this however the fan(s) wouldnt cut off when the TV cuts off.
Both of these suggestions cost me $0.00 and fixed my issue. My lamp was replaced mid last year and my picture looks great. Hope this helps.

Posted on Jul 17, 2013

  • Mike Ratcliffe Apr 15, 2014

    Just an update on this, my TV hasnt had a single issue since this fix was done.

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42" DLP was doing this exact same thing .Shut all power down. I removed the light access door, removed the bulb.,Used a dust magnet to remove as much dust as possible. Then used a can of keyboard CPU air to clean the fan blades. I've waited 60 days to make this post to ensure this really worked. Well its been 72 days and my TV has not clicked off like a ghost since. Its a very slow process but it worked for me.To prevent furture problems I now clean it 1st every three months. Hope this helped save someone a repair bill . Are a needless blub replacement.

Posted on Feb 21, 2009

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We tried all the above as far as the lamp panel and resetting the blue button. Then called Samsung, he suggested that we unplug the unit for 30 seconds and plug back in. It WORKED!! TV on and apparantly this is the fix, yet we are unsure if the resetting of the button also contributed... Good Luck..

Posted on Feb 10, 2009

  • pttmangell Feb 10, 2009

    1-800-SAMSUNG

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I had the same problem with my Samsung 52" HDLP set turning off by itself. This is a common problem with the Samsung sets and I followed the advice I found online and believed it solved the problem. Remove the lamp cover in the rear of the TV (usually held on by one screw). There is a thermal cut off switch that is activated by the depressing of it by the cover. Factory installation for some reason was not done properly and the switch would not be fully depressed causing the set to shut off.After removing the cover, relace it by seatng the bottom of the cover first to depress the switch and tilting the top of the cover in to close it. Replace the screw &you are done. My set shut itself off for 8 Months before I found this fix. It hasn't shut off since. Good Luck

Posted on Oct 19, 2008

Here is my fix for this problem. There is an access panel on the right side of the TV for changing the lamp. This panel has a rubber button that has "Lamp" next to it. Remove the rubber button with a screw driver and then you can remove the screw that holds the panel on. This panel slides forward to remove. When it is re-installed, a fin on the panel activates a swtich that tells the TV that the panel is seated. My switch was on the edge of being seated and intermittantly shut the TV off. My fix was to put a couple of strips of masking tape on the fin where it activated the button. This depressed the button fully and my problem is gone. It is easier to see if you remove the rear cover first.

Posted on Aug 01, 2008

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The suggestion of adjusting the blue switch was the perfect fix, thank you!

Posted on Nov 22, 2008

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Don't know if this applys to you but if you have purchased anything but Osram or Philips replacement lamp for your DLP tv then this is probably your problem.. The generic is VERY tempting in this recession but in this case generic is poison to your dlp tv... i have a Mitsubishi 60735 and went thru 2 generic bulbs when my tv kept shutting down on it's own and the lights on front would flash, i could cut it back on for 10 minutes then flicker and shut down again ..well since the bulb was new i thought it may be defective so i got is exchanged for another one ... after all of the post i have seen how much repairs were going to cost on dlp sets no matter what the problem was ..i was ready to chunk the tv out the door when the second lamp was doing the same thing.....!! well a last ditch effort to save my tv before i trashed it or taking it apart to dissect it.. was to buy a brandname lamp ... in my case i purchased a Philips ..it cost twice as much =/ ..i could just return it if it didn't work.. well it was the generic lamps that was causing trouble.. the brandname worked perfectly .. i am just glad the generic lamp didn't do any damage to my TV!!! I have done further research on the generic lamps and realized that the damage it could have done was not worth the money i saved when i purchesed it... Generic is a great deal In some cases (household cleaners, etc..) but in this case GET THE NAME BRAND!!!! the only name brands i know of for these lamps are Philips or Osram/Sylvania.. hope this helps others from this headache. Do your research don't by generic lamp replacements, your sets cost to much to risk it.

Posted on Feb 16, 2012

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I have a 42 in that did the same thing. It's the small panel that opens for in the back. It has a switch that the door hits that allows the power to shut off when the door is off. Mine was not pushing the switch far enough to keep the power on. I put a few pieces of electrical tape on the point of the door that comes in contact with the switch. Since then I haven't had a problem, 2 years now.

Posted on Dec 09, 2010

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I have a DLP 5067W.. I removed the lamp cover and found that the screw that holds the "blue switch" in place was actually loose. I'm thinking vibration. I tighted and re-asligned the screw.

Posted on Nov 11, 2009

I have a Samsung DLP 56" and had the same issue-tv kept shutting itself off. Ran the usual troubleshooting steps- dust, temp, ventilation, etc. Finally, I unplugged my Time Warner DVR-turns out that the dumb HD DVR was sending shutdown signals to protect HD content recording!!!! HDCP Sucks!!!!
No wonder the issue started after I started recording Law & O HD on TNT HD.
My tv was doing this every day and after replacing my hd dvr for a regular hd cable box, the issue hasn't repeated ( 6 months and counting).
Hope this helps somebody.
Machaan

Posted on Apr 13, 2008

  • 44nv413 Aug 31, 2010

    I thought it was DVR but I disconnected DVR box and it still shuts off

×

I have the same issue. Found a solution...baught a plasma. No more Samsung DLP's for me.

Posted on Apr 08, 2008

  • mattcrist Aug 07, 2010

    Whether it's a plasma or not...my advice: Don't buy a Samsung. My Samsung has been worked on by Samsung techs twice and it is still turning on and off by itself. Samsung said they would replace the part again out of warranty because it's a known issue. A guy came and did software updates, replaced nothing. My TV is still doing the same thing. Samsung followed by refusing to pay for the tech trip and they are now trying to stick me with the bill. Good luck getting paid $160 for a software update that did nothing. Samsung should pay for the inconvenience of having to tie up my day with an incompetent TV repairman and send someone who knows what they are doing to fix this known issue. Instead they are trying to stick me with a bill for lack of service.

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Thank you to those that recomended that I remove the lamp cover in the rear of the TV and tape down the thermal cut off switch ( I also reseated the lamp) I did this about 2 months ago and I have not had the problem since.

Posted on Apr 22, 2009

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My 50" DLP kept on shutting down on heat. The fan worked so I figured it was not big enough because if I ran a room size fan blowing past the rear of the set it would work well.
I replaced the fan with a larger computer fan with by removing the original fan. I needed to shave the fan cowling down about 1/2 in so it would fit. I have had not any trouble since.

Posted on Nov 17, 2008

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Change the lamp ,the lamp may look good ,but it is defictive.

Posted on Jul 13, 2009

  • Jayne Dowe
    Jayne Dowe Oct 18, 2014

    No your spelling is defective!

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Yeah the TV internal cannot circulate out the heat.

Posted on Sep 10, 2015

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I have a Samsung 52 DPL and it has been shutting off intermittently for a couple years. But I would open the back remove the lamp cover and lamp, blow out any dust (not much there) and button everything back up and it would work for several months. Now, it won't stay on for more than 60 seconds. I've done the same quick fix procedure - even cut the wires to the blue switch and twisted them together. The TV isn't hot because it happens after sitting all day/night. Not sure what else to do. Hate to spend pile of money for a new TV.

Posted on Nov 22, 2014

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Thank you for this fix! I was pricing up new TVs when I saw this thread but the my Samsung DLP has not shut off in a week after doing the fix. Thank you thank you thank you!

Posted on Oct 14, 2014

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I had this same problem with my Samsung DLP. An easy fix....... The problem is in the blue safety switch, just UN plug the wire from it and use a paper clip to stick in to the female end of the free hanging wire. This will trick it into thinking the circuit is complete. Problem fixed!

Posted on Apr 09, 2012

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I have a Samsung DLP HL-T5676S that we could click on and off and it would finally come on and stay. Now we do that and it won't come on. The standby light was blinking when I turned it on indicating it was comming on but it didn't. Please help

Posted on Jan 22, 2012

  • Anonymous Sep 20, 2015

    What was the solution or end result?

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I've been having the same problem, 42 inch Samsung DLP 2 years old. Turns off after 20-30 minutes, will turn on again but usually turns off quicker. I opened up the back and and blew, knocked some dust off a cooling fan with a screwdriver, and its been on for an hour + now... crossing my fingers.

Posted on Aug 10, 2008

Yes - Please refer to my comment above- "comment by longwaytogo" posted on 2-16-08 -

We removed the back of the TV (no compressed air) but vacuumed
everything as much as possible. Disconnected the temp sensor plug and then re-connected it. This solved the problem- it is now April 9th and the TV has worked perfectly since then.

All roads seem to lead to the temp sensor. We thought ours was completely faulty, but come to find out , it was simply not properly plugged in.

My son also suggested getting a fan for a computer tower and installing that- as he thought the fan may be faulty. This is another option.

These DLP TV's have gone WAY DOWN in price-- LCD seems to be the front runner recently.

Posted on Apr 09, 2008

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I was having the same issue with my Samsung shutting off. After reading all of the above solutions (while trying to watch TV until it shut off again), I decided to give the lamp cover trick a try. The blue shut off switch on the left side did the trick. Thank you all for posting these solutions. My husband will never believe this!

Posted on Feb 16, 2011

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I have a 81 dlp when i turn it off i hear a buzzing noise coming from the back maybe the fan

Posted on Mar 02, 2010

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Apprentice I have the same problem on my 56...2 years on the bulb slowly powers up to full brightness for around 30 secs,both fans are fine..i think, spinning anyway..then turns off 3 blinking lights ..help

Posted on Feb 17, 2010

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I saw on here where someone suggested direct wiring the switch harness for the switch that is on the back panel door. I used speaker wire to connect the two outer prongs and my tv has not turned off since. Thanks for the great recommendation.

Posted on Oct 13, 2009

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I had the same problem.and found out that my problem had something to do with the TV Guide that turns on after you power up. I turned the TV guide off and now it goes staight to the programing without freezing or turning off and on by itself. TVGUIDE sucked anyway

Posted on Feb 05, 2009

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IB4G2008
  • 3587 Answers

SOURCE: Samsung DLP TV shuts off

sounds like your power supply is going south...check the voltage coming out of the wall first

Posted on Feb 25, 2008

SOURCE: Samsung DLP TV shuts off

I fixed the problem. The unit turns off because it gets overheated. You can use a cheap external fan to blow against the casing for the lamp and TV no longer shuts off. I just had it on for 5 hours asnd it did not shut itself off. This is very simple solution. No need to mass around with parts etc. Sunny

Posted on Aug 05, 2008

  • 1 Answer

SOURCE: samsung dlp model hl- S5086W

Most likely color wheel since most are defective right out of the factory--- someone has a step by step procedure to replace with pictures-- try google- samsung colorwheel -- fun job easy to do!!!

Posted on Jan 06, 2009

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Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
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Posted on Jan 02, 2017

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