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Comfort-Aire RAD-121-5-C 12000 BTU problem

I have a Comfort-Aire RAD-121-5-C 12000 BTU window a/c unit. It seems to work fine as far as cooling but sometimes it just shuts off, and then I can't turn it back on for at least 10-15 minutes. This can happen several times in one day. I cleaned the filter and it seemed to be working better but it is back to doing this. What could be the problem?

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 86 Answers

SOURCE: fan speed trouble on cool setting

1.check selector switch of airconditioner.
2.capacitor of blower fan motor.
3 wiring of airconditioner.
4.replace selector switch.

Posted on Mar 16, 2008

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  • 1 Answer

SOURCE: Comfort Aire PAC-121 problem

E4 shows up on the screen on my PAC-121 when the water reservoir on the right-hand-side is not pushed in all the way. If it is in all the way the switch that it engages may be bad or out of place.

Posted on Mar 23, 2009

  • 1 Answer

SOURCE: poison

We searched the internet till we found something that put us at ease. still not 100% but at least 75%-90%.

Posted on Jul 07, 2009

james3751
  • 614 Answers

SOURCE: Remote control for Comfort Aire AC Model # RAD-81C

If you need a remote for your ac unit go to ebay. You can get a universal remote for your unit. Russ

Posted on Mar 25, 2010

icemelts
  • 246 Answers

SOURCE: window unit comfort aire rad

actually it can be charged like a car "if" it has charging ports which it won't have unless someone has installed them - which would only of happened if the unit had a leak previously. So, to answer your question a window unit can be charged like a car but it's a little more complicated than charging a car and I would think you'd need a serviceperson to do this.
Also, if you don't have charging ports already installed on the unit - the chances that you have a leak is not very strong. These are 'sealed' units and really do not spring leaks very often.
I would be more inclined to think you had an electrical problem, i.e. wire burnt off compressor terminal or something like that instead of leak.
Sometimes you can save a lot of money and time - by getting a qualified serviceperson involved.

Posted on Jun 07, 2011

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1 Answer

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I have a Comfort aire RAD 101-5 window AC. It works fine until it gets really hot outside and then sounds like it's bogging down and the compressor shuts off.


Hi,

Here is a tip about troubleshooting your air conditioner...
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AirConditioner Trouble - Review the Possibilities

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Lets look at the output of the system first. Take your square footage of the area you are trying to condition and times it by 15. We try to get 15 Btu's per square foot of air conditioning. If your area is say 10 by 15, you have 150 square feet; times it by 15 = 2250 Btu unit is required. If you have a 5,000 Btu unit, it should be more than enough to cool the room. If this is correct, the problem may be because you have the unit set for Dry. In Dry mode, the compressor will cycle less frequently than if on Cool. If in fact the unit is on Cool, you may need to lower the temperature setting to fool the sensor from turning off the compressor prematurly. If you still can't cool the area, your unit has an issue with either refrigeration or air circulation and will need to be serviced.

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What's the amps for this unit?


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--W/D--

Feb 22, 2011 | Comfort-Aire RAD-293 Air Conditioner

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My air conditioner just shut down like it has no power but the outlet has power. Is there a reset button or something? It's a Comfort Aire Model RAD-151-B


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Remote control for Comfort Aire AC Model # RAD-81C


If you need a remote for your ac unit go to ebay. You can get a universal remote for your unit. Russ

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If it's in Energy Saving mode, that may be normal.

Geno

Feb 25, 2008 | Comfort-Aire EKTC12-150J Air Conditioner

1 Answer

Fan speed trouble on cool setting


1.check selector switch of airconditioner.
2.capacitor of blower fan motor.
3 wiring of airconditioner.
4.replace selector switch.

Feb 25, 2008 | Comfort-Aire EKTC12-150J Air Conditioner

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