Question about Goodman CLQ36AR49 Air Conditioner

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Contact points on compreessor motor are sticking closed and unit (compressor) does not kick on. No breakers are kicked, when I cycle them the contacts keep locking closed and compressor remains off.

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Contacts are bad need new contactor. This happens often, Check out very carefully to see why contacts are going bad. May need new capacitor.
If you have voltmeter check the compressor side of the contactor to see if you have voltage. Rus

Posted on Jul 18, 2009

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The thermostat is set to off. The compressor keeps kicking on. Need help asap, camping now.


If the compressor is constantly running and not cycling off then the contactor is stuck in the closed position. If the compressor is cycling on and off and on again then there is a short in the low voltage circuit. Could be anything from the t-stat to the control wires. Normally the contactor points will stick closed and the outdoor unit will continue to operate with the t-stat in the off position(or any position). The contactor is the only part on the o.d. unit where the main line voltage wires connect to the unit. There is 1 moving part in the center that may be stuck closed. Turn off power at the breaker or disconnect box at o.d. unit. If this unit cools without the indoor unit operating it will freeze up, allowing the compressor or to remain at the indoor coil and it may/WILL damage the compressor. Call a technician!!!

Jun 13, 2015 | Heating & Cooling

1 Answer

The condenser unit will not kick on...it is a concord unit,10=12 years old,13 seer,3 ton. The air handler works fine. I thought it was the capacitor. The old one was bad,I verified that with multimeter....


It could be a low refrigerant cut-out (switch), grounded or shorted motor windings, open internal winding overload protector (check at the common winding), a broken conductor, or no power at condensing unit from blown fuses or open/tripped breaker.

Aug 22, 2013 | Intertherm Heating & Cooling

1 Answer

I hav a magnum compressor model ac0205tt103902 two hp , five gallon unit when tank is empty it works well but when using it and it kicks in it kicks 20amp breaker


Compressors are set up so when the motor shuts off the air in the compressor pump head is bled off so the motor can restart easily when the pressure in the tank drops to the restart point. The usual culprit for problems with this system is the tank check valve. It's where the line from the pump goes into the tank. It lets air into the tank then closes when the motor shuts off and the bleed-off valve opens. The spring could be broke or the valve is dirty or jambed. Sometimes they can be cleaned but more often than not they have to be replaced. The bleed-off valve on the pressure switch could be the problem but that's rare. If it is the bleed-off valve, you'll have to replace the pressure switch.

Feb 07, 2013 | Air Tools & Compressors

1 Answer

Everytime my central air unit kicks on my circuit breaker trips. It didn't do this last year or even earlier this year


A circuit breaker 'tripping' everytime the AC unit kicks on 'most always' indicates a direct short (somewhere in the condensing unit), although it is possible that the breaker itself is bad - (but not likely).

Usually the cause of this 'short' will be - either the condenser motor in the condensing unit (outside unit) or the compressor - also in the condensing unit.

If you're mechanically inclined - and "very careful" around electricity - there is a fairly simple way to find out which component is causing the short.

Step 1 - Make sure the condensing unit (outside unit) is completely disconnected (electrically) , i.e. pull the fuses/turn off circuit breaker on outside unit and turn off thermostat.

Step 2 - disconnect the condenser motor (this is the outside fan motor). Note: when you disconnect the wires of the condenser motor "be sure" you mark/write their location, and wrap them in electric tape.

Step 3 - start the AC unit. If the breaker trips again you can pretty much rest assured it's the compressor that is shorted.

To prove it (without a doubt) - go to next step.

Step 4 - "be sure circuit breaker and thermostat is turned off" - and - 'reconnect' the condenser motor - and - then disconnect the compressor wires (mark wires and tape them).

Step 5 - Start AC.

If breaker doesn't trip - you know it's the compressor that is shorted.

If breaker 'does' trip again - then it's possible the breaker itself is bad (not likely) or there is a 'short' in the condensing unit's "wiring" somewhere (not likely).

My guess is that either the condenser motor or compressor is shorted.

Hope this helps.

Good Luck!

Jun 10, 2010 | Heating & Cooling

1 Answer

Duo Therm AC Not Cooling


most likely a thermostat problem most rooftop air units fan will blow cont. and compressor cycles

Jul 26, 2009 | Heating & Cooling

1 Answer

IR T 20 air compressor will not kick on


IS IT THREE PHASE OR SINGLE PHASE? MOTOR TAG WILL SAY PH 1 OR PH 3.DOUBLE BREAKER OR TRIPLE BREAKER WILL ALSO TELL. IS THIS A BRAND NEW INSTALL OR AN EXISTING COMPRESSOR THAT JUST NOW STARTED DOING THIS. SOUNDS LIKE A POWER PROBLEM LIKE A MISSING PHASE OR BLOWN FUSE. REMOVE FUSES WHEN OHM CHECKING - DONT TEST THEM WHILE STILL INSTALLED.

Mar 14, 2009 | Air Tools & Compressors

1 Answer

I have a coleman/evcon heat pump. When the thermostat kicks on the contacts kick in and hum but the compressor nor the fan run. Is this probably my capacitor has gone bad?


I would check the hig voltage power supply to the unit. Check the main breaker and make sure it is on. Check the disconnect and make sure there is power at that point to the condensing unit. The contactor will kick in from the low voltage in the control circuit.

Jul 11, 2008 | Coleman Heating & Cooling

1 Answer

Ruud heat pump outside unit trips circuit breaker


Check your wiring between the contactor and compressor for a short to ground, or check the compressor windings for short to ground.
With the Tstat off, the contactor should be open so the only way for the compressor to be trying to do anything is if the 110 volts from the unbroken side are traveling through the compressor to ground. Since 110v is not enough to run it, the overload is kicking it out, cooling off, and repeating the cycle. When you kick on the Tstat, the contactor is supplying voltage directly to ground without going through the resistence of the compressor windings and kicking the breaker.
Post back and let me know what you find.

Nov 20, 2007 | Ruud Central System Air Conditioner

1 Answer

A/C quit running


This question is really to broad to answer. There are several things that could cause it to stop running. I think I would turn everything off, let it cool down for several hours and try it again. When you kick it back on, take note of what is running and what's not running. Inside fan, outside fan, compressor. If the outside unit will not run at all it could be as simple as a grasshopper caught in the contacts. If you hear the compressor running outside but no outside fan, The fan motor probably needs replaced. Please make sure that all power to the unit is TURNED OFF before removing cover plates on outside unit and before trying to remove insects from contact points. Check all wiring inside outside unit while it is open. Also check capacitors for swelling or leaking. If you don't know how to turn all the power off or open the outside unit, you need to call a professional AC technician. Hope this helps. kstfas

Aug 26, 2007 | Ruud UAKA037 Air Conditioner

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