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Window air conditioner fan works, compressor doesn't

Power went out, when came back on I think it burnt something. The fan works but the compressor won't come on. Compressor does make a noise when you turn up the thermostat, just doesn't kick on.

Posted by Anonymous on


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Posted on Jan 02, 2017

  • 182 Answers

SOURCE: air conditioner compressor and fan

you either have a short in the wire or a stuck contactor

Posted on Nov 07, 2008

  • 73 Answers

SOURCE: Carrier air conditioner cycles on and off

The compressor/condenser is being called all the time. The reason it goes off is because the evaporator (indoors) freezes up when the fan is told to turn off by the thermostat. This further cooling lowers the low side pressure below the low limit switch point turning off the compressor unit.
Solution: Make sure the thermostat is wired correctly. Green wire is usually the compressor wire but maybe not.

Posted on Jun 17, 2009

  • 15 Answers

SOURCE: Very hot outside. blower comes on but outside fan

Check the voltage source for the fan and compressor
Check the start capacitor for the compressor.If its over heating :bad compressor

Posted on Jul 05, 2009

  • 82 Answers

SOURCE: I have a Carrier 38CKC036 Air Conditioner

Hello, this is one of 2 items...the motor itself, or the start capacitor. The capacitor is responsible for boosting the motor to get it started. Follow the wires from the motor and they will lead to an oval or round cylinder. Check the cylinder for any bulging or leaking oil. When the motor should be running, reach in with a stick or ruler and try to assist the fan to get going. If the it feels is most likely bd motor. If it trys to start and feels smooth it is most likely capacitor.

Posted on May 13, 2010

Testimonial: "It was the capacitor."

  • 407 Answers

SOURCE: Carrrier Central heat and air. Model 38CKC042300,

Unfortunately no, this is one of three things.
1. Compressor is worn and is starting to pull to many amps to operate. Can possibly be fixed by putting a hard start kit on the unit, but will have to be done by a technician.
2. Compressor has an internal short and will have to be replaced.
3. Fuses bad or under sized. Max fuse size is stated on information plate on outside unit.

Sorry to hear about your troubles and hope you can get it fixed soon!

Posted on Aug 15, 2010

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1 Answer

Fan will not run without starting it yourself and will not run high speed at all

Sounds like an old unit with a bad run capacitor or

check the components on the board for burnt wiring.

Fans on window units are controlled by a 3way switch. High, Med., and low. Your power and in most cases a capacitor which doubles for the compressor and fan.

So it can only be 1 of the 3
Burnt out windings on the motor
Bad switch
Bad capacitor

May 01, 2014 | Haier HWR06XC7 Air Conditioner

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Power went out for 3 seconds electric storm warnings but did not see/hear any lightning strikes. Central air-conditioning fans spins But the compressor doesn't turn on. There is one condenser and looks...

During these storms power gets shut down fora sec and comes back with a tsunami type surge. why? Because the generators are going full blast at the electrical plant in your area. No load is applied anf they sky rocket into Zapland babes! Any slight glitch or momentary outage causes a surge. It goes away but it comes back with a fury. So if your AC's run cap is a little old and tired from workin that condenser like it ain't not thang, Then the resulting surge will zap that puppy and it will look like this:
themobilian_2930.jpgRemove the power from the outside unit and look at that capacitor. It prob has went under. If it is leaky or preggers, it is bad. Replace it and party on! More here

Aug 28, 2011 | Heating & Cooling

1 Answer

Compressor doesn't kick in

If the compressor is not running but you do have power to the air conditioner there may be a problem in one or more of these areas:

Compressor bobicehouse_60.jpgOverload Thermostat (Open thermostat) Burnt wiring Bad selector switch Capacitor


Aug 13, 2011 | Frigidaire FRA052XT7 Thru-Wall/Window Air...

2 Answers

I have a ''GE"heat &

Look at the wires that go to the compressor and make sure they are not burned off. Inspect the capacitor tops for swelling and loose or burnt wiring. Also check the connections coming from the controls. May have a wiring problem or even a bad compressor. How old is the unit?

May 17, 2011 | GE AJCQ06LCB Air Conditioner

1 Answer

Power went out with a storm, a/c never came back on changed the fuses runs for a min then stops. Guy has been here twice can't figure why won't work. Board bad, thinks it might be burnt. Can't get a new...

Low voltage or a spike in voltage from a storm is the death of a lot of units. The guy should be able to ck your compressor if its good then it leaves the capacitor contactor or your transformer. If you turn on the indoor fan by putting it on the on selection instead of auto and it comes on your transformer is working. The capacitor and the compressor require a volt/ohm meter to ck them and you will need to turn off the voltage to the unit. You need to open the access panel on the unitoutside its the panel usually on the back left side that the wires run into inside you will see a contactor that the main power wires run to have someone turn on the power and listen you will hear the contactor kick in if it does it is usually good. If you see burnt or melte wires they will lead you to the problem. If you need to go further let me know. good luck

Aug 10, 2010 | Ruud UBHC Air Conditioner

1 Answer

The fan on my duotherm a/c doesn't work. I can hear the compressor come on but the a/c doesn't blow any air. There was a fairly loud pop when it quit working. Am I looking at replacing a condenser or relay...


Apr 18, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Is not coolyn

The 'cable' you referred to I'm assuming is the power cord,and the fact that it was 'burned bad,' indicates you had something wrong with the AC itself.

This could be something as simple as a shorted/burned wire inside the unit - to a shorted compressor or fan motor.

If you're mechanically inclined you might open up the unit and see if you can find more burnt wires.

It does worry me a little when I see a power cord "burnt," so it might be smart to have a Service Tech check out the AC completely. If it's just a shorted wire, capacitor, relay or switch, the repair bill won't be that bad.

Good Luck!

Apr 06, 2010 | Haier ESA3125 Wall/Window Air Conditioner

1 Answer

My a/c system is blowing hot air; outside fan is not engaging

First check for line voltage 240v...if thats good .check for burnt wiring at fan capacitor.if you hear the compressor humming but still no fan you may need a fan motor.. when buying your new motor make sure to match horsepower and r.p.m

Jun 22, 2009 | Weather King 10AJA3601AH Air Conditioner

1 Answer

My air conditional unit outside ,fans turns on but the unit compressor wont turn on,just stopped working this morning.i turned the thermostat to 72 but only the fan on the outside unit comes on and it is...

Somethings aperson cant fix without a service tech. First it could be wire burnt of capacitor going to compressor. Second it could be bad capacitor. There is a dual capacitor on the ouside unit one side says herm that runs the compressor. Turn power off to check to see if wire is burnt of the herm terminal or the C ternminal. Wire burnt off compressor common terminal.. Could be locked up compressor. Unless you know how to troubleshoot unit. You may have to call service tech. Cost if bad cap. is about 100 to 150. But unit wont run without it. Rus

Jun 21, 2009 | Emerson Quiet Kool 12HT13 Air Conditioner

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