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2000 daewoo nubira gets no heat.

No heat, fan blows, but car still gets no heat. 2000 Nubira sedan

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Chances are the heater controls have been disconnected they may feel like they are turning properly at the dials but they may have been broken or disconnected...

look under the dash along the centre console, you will be able to see the pull'ies and the ajoning mechanisms, while you are still under the dash turn the dials and you should be able to see the mechanisms move as you do it... check they are all connected.

sometimes there are 2 visable in the centre from the drivers side
and often one passenger side or behind the glove box.

Posted on Feb 29, 2008

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Posted on Jan 02, 2017

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My problem is that when turn the volume up so high it flashes over load and shuts off and the fan on the back of the reciver constly runs is the fan susposed to blow in the reciver or out of the reciver...


Fans usually blow in the direction that would assist warm air to exit the device. Since heated air rises and there are vents on top I would guess air would be drawn in.

Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'nekkid'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as another possible root cause for intermittent shutdown.

Aug 14, 2011 | Technics SA-DX940

2 Answers

My Technics SA-AX540 AV Control Stereo Receiver keeps shutting off and on and displays overload. Does anyone have a fix for this problem?


Heat?


Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.


Check for loose speaker connections as a root cause for intermittent shutdown.

Feb 21, 2011 | Technics SA-AX540 Receiver

1 Answer

Mine shuts off and blinks red once it gets hot I think....I can put a fan in the back to blow air at it and it will work for a good while. The manual says it is not getting air but there is nothing really...


Clearly, heat is an issue if a fan helps it stay up longer.

After 5 or 6 years there may be an accumulation of dust bunnies inside it.

Unplug it and take the cover off. Blow it out, clean the vent holes and see what happens.

Jan 28, 2011 | Denon AVR-1604 Receiver

1 Answer

Hello theremy denon S302 is now 2 jears old and now is goes in hold mode when its on for about 9 min. can i reset the machine? please help


Hi, I've heard that some of the units have a defective heat sensor that is supposed to activate the fan system, but doesn't. It shouldn't be too hard to tell if this is your issue - simply turn the unit on and see if the fan comes on before the unit shuts down. If not, then you might try setting up a house fan to blow into the vent holes - then see if it stays on longer. IC circuits can be very sensitive to heat and there can be a major difference between the internal temp of a unit - individual chips etc, and the temp you feel on the cabinet. If this turns out to be the issue, you may be able to find some reasonably inexpensive alternative - or just send it in for repair.
Hope it works, good luck!

Jun 11, 2010 | Audio Players & Recorders

1 Answer

Cooling fan comes a lot on 407


If you have equipment stacked, that is normal, or if it's in a cabinet. If it's "stand alone" in an open area, get a can of compressed air and blow out the inside. PC boards are like dust magnets and it could be heating up due to a "dust blanket" Hope this helps

Oct 03, 2009 | Kenwood VR-407 Receiver

1 Answer

Amp just fits into cabinet


Hi Tom I dont think what you propose is unsafe , but I dont think you really need to do it in the first place , Denon Gear is good quality stuff and the amps in particular are very robust , if you look inside one you will see they have quite large heat sinks in them that are well away from major components and these heat sinks do a great job of heat dissapation , by putting a fan in you will only be blowing warm air around off the heat sink . hope this as helped you . Smirf617

Jun 09, 2009 | Denon DRA-685 Receiver

2 Answers

My Pioneer VSX D711 is heating up ....VERY HOT to touch


Generally speaking heat is a byproduct of the amp working too hard. This can be caused by speakers that are not matched correctly to the amp. In other words using 4ohm speakers on an amp that is expecting an 8ohm load. If this is a new occurrance, than look for speaker wires that have frayed and are somewhat crossed. From the amp's perspective this will look like a low ohm load. The amp may continue to function correctly, but work extremely hard and generate excessive heat. This will untimately damage the amp. Check the speaker wires first.

Also, does this occur even at low volumes? If so, this again points to a short in the wires or speakers themselves.

Please update this with what you find.

Thanks,
Dan

Jan 10, 2009 | Pioneer VSX-D711 Receiver

1 Answer

I have a technics su x502 amp & it works for a while then goes off & then comes back on after about 5 mins,the rest of hifi stays on its just the amp.


take out the cooling unit (the fan) and use a cpu fan out of a pc connected to an external power source like a 12v dc/ac adaptor and use it to blow constant cool air through the hole onto the heat sink. i know it sounds like a ruff job but it does work, my amp doesnt even get hot and it plays all night long without cutting out once. you will get noise from the fan constantly on but i just turn it up louder. this is just a ruff quick fix.

Aug 09, 2008 | Audio Players & Recorders

1 Answer

CD player code


I contacted the local Daewoo dealership and they faxed me a list of all the codes. Unfortunately, you have to try all of them to find the one that matches your player, but I finally got it.

Mar 25, 2008 | Audio Players & Recorders

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