Question about Panasonic PT-40LC12 40" Rear Projection HDTV

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Air filter cleaning needed message comes on and need to clean and shuts down after 1 minute. what do i do? where is the filter i took the back off and no filter. i blew it all out. anything else?

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There is a side panel where the Lamp is located and held on by a screw or two.
Open that compartment and vacuum out all dust. Also any fans should also be cleaned.

Posted on Jul 30, 2009

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Posted on Jan 02, 2017

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2 Answers

Reset air filter


Page 58 of the user manual says that after cleaning the filter when the power is turned on, you will be given the opportunity to reply "Yes" to the question "Did you clean the filter". I suggest you go through the motions of cleaning the filter again, removing the necessary parts. Then replace the parts, turn the power on, and watch carefully for the message "Did you clean the filter".

Jan 06, 2014 | Panasonic PT-40LC12 40" Rear Projection...

1 Answer

Shuts down and gives me failure E 1 on the card and will not start


E1 = The air filters need cleaning (after 720 Hours use)
It will shut down until you clean the filters & reset the E1 alarm code.
To do this you need to:
Pull the Air Con appliance lead out of the power outlet in the wall.
Remove & Clean the air filters & then put the cleaned filters back in machine
Before plugging back in you Push & Hold the Power button on the Unit
THEN while holding the power button you PLUG the lead back into the wall.
Keep Holding the power button until you hear the unit emit a beep (hold for approx 5 secs)
Then disconnect the power supply lead again.
Then Plug it back in again & turn on
It should be cleared & working well.
Good luck

Aug 10, 2013 | Sharp AF-S120FX Air Conditioner

1 Answer

Clean filter message reset


the filter will need to be cleaned and if the set still shuts down then I would suspect the fan may need to be cleaned and possibly replaced.

Aug 07, 2012 | Panasonic PT-43LC14 43" Rear Projection...

1 Answer

Mitsubishi HC900 Projector shuts down after 5 minutes.


You have 1 of 2 possible problems.

(1) You need a new lamp.

(2) You have an overheating problem.

Just a quick couple of notes about your projector. It is a DLP projector (not LCD) and as such the machine as no air filters to clean. It does have air intake and air exhaust grilles, but no air filters to clean. This next part comes directly from the owner' manual for your projector:

When the lamp operation time exceeds 2000 hours*1 *2, the projector automatically shuts off and can’t be used until the lamp is replaced and the lamp operation time is reset.

Your machine is designed to give visual warning messages at 1500 hours used, and 1900 hours used. Did you see any visual warning about lamp life over the past few months?

If you were experiencing an overheating problem, a "TEMPERATURE!!" message would flash up on the screen just before the unit shuts down. If there is no warning, you don't have a heat problem.

If you have a replacement lamp available, install it and reset the lmap hours according to your user manual. If you don't have the manual, google it on the web (it available).



Apr 01, 2009 | Mitsubishi HC900 Multimedia Projector

1 Answer

Panasonic PT-60LCX64 Air Filter Cleaning


Cleaning filter for the Panansonic PT-501LCX64.

I just had a T.V. tech do this. The filters are located on the two removable filters on the back side of the T.V. They look like the speaker units. He removed those two units, unplugged them & set them on the floor. He took some type of electronic cleaner with a cloth & wiped them down. The filters themselves are plastic. He explained that air flows through some tube connected to these plastic filters for cooling down below. He admitted they didn't look dirty--put everything back together & it is working fine now.

I imagine that dirty or not the timer is automatically set for every 400 hrs. of use to give you the prompt that the filter needs cleaning & will shut off in one minute so you can call a T.V. tech?

So to reset the timer--follow the other detailed prompts listed on this board & or use your owners manual & follow the prompts for replacing the bulb. That should take you somewhere to reset the timer--so you have another 400 hours of operation.

I believe it's with the T.V. turned off--hold down the down volume on your tv itself while holding the swap button on the remote control for 5-7 seconds---then follow the prompts. You should see a prompt for replacing a bulb & then one for filter cleaning. Then just reset the timer.

Hopefully this will help?

Nov 04, 2008 | Panasonic PT-60LCX64 Television

1 Answer

OSD Message Panasonic PT-50LC14 Air Filter Needs Cleaning


I had the same problem and the stupid tv would shut off after 1 minute. We opened the silver front panel , took the bulb out cleaned it, took the cover off the grey box to the right and very carefully vaccumed the filter and wiped it off with a microfiber cloth. It works great now!!! Make sure you unplug your tv before messing with it.

Sep 28, 2008 | Panasonic PT-50LC14 50" Rear Projection...

1 Answer

Pt-52lcx66-k multimedia projection hdtv - air filter needs cleaning


Good Day,

It sounds like your lamp sensor is defective. Change it and it should correct your concerns. I hope this helpful.

Jun 11, 2008 | Panasonic PT-52LCX66 Projection Television

2 Answers

Where is the air filter on my Panasonic PT50LCX64 TV and how can I clean it?


I have the same problem!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Jun 05, 2008 | Panasonic Televison & Video

2 Answers

Reset lamp meter on Panasonic PT-43LC14 television


While TV is on, simultaneously press and hold both the TV's Volume Down button and the remote's PP/Play button for 7 seconds.

Jun 03, 2008 | Panasonic PT-40LC12 40" Rear Projection...

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