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My air conditioner shuts off after about 20 minutes

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

22yooper
  • 828 Answers

SOURCE: RV ROOF TOP AIR CONDITIONER TRIPS BREAKER

Possible low voltage condition would cause that kind of a problem. To small a cord without the ability to carry and maintain the voltage would cause a voltage drop. I would test the voltage supply and make sure it is within 10% of that required for your A/C to operate properly.

Posted on Jun 16, 2008

  • 587 Answers

SOURCE: RV air conditioner. Compressor running, fan stops before cool

The fan motor is getting hot and going off on the internal overload in the motor.
This is caused by either a low voltage, a bad capacitor, or tight or dry bearings in the motor.
To check the bearings turn the power off to the unit, then spin the fan blade if it spins freely then the bearings are ok.
To check the capacitor you will need some kind of tester or you can buy a capacitor and replace it, that's what a lot of people do. They usually don't cost very much.
To check the voltage you will need a voltmeter and measure the volts at the unit.

Posted on Jun 09, 2009

SOURCE: Air conditioner runs for several minutes then

Take it back to the dealer and have them fix it, could be a compressor froze up or a fan froze up. If you disconnect the compressor and turn it on and it trips the breaker the fan is probably
bad. If you disconnect the Fan and turn it on and it trips the breaker
it is you compressor.

Posted on Jul 16, 2010

hvac1960
  • 2133 Answers

SOURCE: when the air conditioner is turned on to cooling

Check condenser coil. Dust blocked. Clean it. May be fan motor and compressor capacitor weak. Replace it.

Posted on Jan 16, 2011

  • 10 Answers

SOURCE: My air conditioner amana ac

Either its out of frion, or it needs to be cleaned.

Posted on Mar 31, 2011

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1 Answer

Air conditioner cools for 30 minutes then stops cooling after 20 minutes starts cooling again what is likely problem


The compressor motor is over heating and thermal protection shuts it down , when it cools down it restarts. Restricted air flow over the cooling coils could be the cause. Check filter,Sometimes furniture or other things block the return air vent.

Aug 27, 2014 | Heating & Cooling

1 Answer

After my air conditioner is on for awhile it will automatically shut off completely then after a few minutes it comes back on. It is not set on the energy saver setting. Also it is and continues to do...


Debi, it;s not unusual for an AC unit to turn ON & OFF. Once it reaches the temperature that you have it set ON and holds the temperature for 4 or 5 minutes, it will shut OFF until the room temperature rises above it. Be sure all the doors and windows are closed and no hot air is infiltrating the area.

Also, a 10,000 BTU air conditioner is not designed to handle a large area. Generally, 10,000 BTU's will handle about 3200 Cubic Feet (20' x 20' x 8' = 3200 sq ft) or simply put, 400 square feet. Your A/C unit may be undersized for the area you're trying to cool.

Hope this helped you. Please let me know. Thanks.

Jun 07, 2011 | LG Electronic Window Air Conditioner

1 Answer

Shut off automatically, and I run it in fan only mode


Remove filter cover and see if front coils /fins are frosting up. Let me know

May 17, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

My LG window ac continues to shut down after 20 or 25 minutes


The button on the plug is a GFI. Ground fault interuppter. Like on your hair dryer. When the unit is running, or has just tripped out, feel the plug and the well receptical. If either feel warm or hot, do not continue to run the A/c unit. Get an electrician to check for a faulty/ worn/improperly wired outlet. The units tripping out for a reason.

Aug 01, 2009 | Samsung AW0603B Air Conditioner

1 Answer

I have a GE central air conditioner model


If you are talking about the indoor fan it is probably a bad capacitor. Replace the fan motor capacitor. And YES, if the fan motor needs replacing too, you can DO-IT-YOURSELF.

Jul 05, 2009 | General Electric Heating & Cooling

1 Answer

LG 1200 btu ac unit works fine for 20 minutes then shuts off compressor and continues to run fan only. Shutting it off for 15 minutes and then works fine again for 20 minutes.


You do not say if it is outdoor or indoor fan which operates. However I presume all your filters are clean and the drainpipes are clear. The only other thing you could suspect is the thermostat or air flow sensor.

Jun 25, 2009 | LG Heating & Cooling

1 Answer

RV air conditioner. Compressor running, fan stops before cool


The fan motor is getting hot and going off on the internal overload in the motor.
This is caused by either a low voltage, a bad capacitor, or tight or dry bearings in the motor.
To check the bearings turn the power off to the unit, then spin the fan blade if it spins freely then the bearings are ok.
To check the capacitor you will need some kind of tester or you can buy a capacitor and replace it, that's what a lot of people do. They usually don't cost very much.
To check the voltage you will need a voltmeter and measure the volts at the unit.

Jun 06, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Brand new right out of box Everstar MPK-10CR-1 portable 10,000 BTU's


It sounds to me like it is overheating. Make sure that all of the literature that came with the unit is accounted for. Many times the manual or instructions are blocking the exhaust causing it to overheat. If this is not the problem then I would suggest exchanging it for a new one. It may be a manufacturer defect.

Jun 27, 2008 | Danby DPAC8020 Air Conditioner

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