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

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  • 602 Answers

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.

Posted on Aug 28, 2014

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Anonymous

  • 1 Answer

SOURCE: Maytag NMPEB08F2A Portable Air Conditioner

I have the same problem w/ a window unit - fedders unit under the Maytag brand. No idea how to fix it, but would be great to get some info on this.

Posted on Aug 05, 2007

bobotfel

Felizardo Erilla

  • 241 Answers

SOURCE: Portable Room Air conditioner will not cool

You need to call for for a qualified technician oil residue is a sign that your unit have leaking, your unit is out of refrigerant.

Posted on Dec 31, 2007

Anonymous

  • 230 Answers

SOURCE: Frigidaire air conditioner - no cool air coming out.

if you used it alot, i would check it for freon.
checkthe air filter, make sure it's not dirty.
check the front panel, make sure there's no "ice/frost" in the unit.

Posted on Jun 30, 2008

louislevel_2

Louis Magpantay

  • 374 Answers

SOURCE: Samsung Ac compressor stops after 20 minutes and fan keep running

eventually,cycling process is doing done if the thermostat sense the configure temperayure set up it will trigger to stop your compressor motor as well as the blower fan,blower fan independenly to you compressor.if your thingking that your compressor is tripping off,check your operating current on one line using clamp ammeter and compare to the rated current that tag on
motor compressor body,if the current flow is higher than the rated current specified on compressor motor,well problem occured it will trip your compressor,because overload protector is becoming your thermostat.but if you got same current result it was cycling process.If tripping off maybe air is present in your system call qualified ac tech, to purge out air in system.

Posted on Mar 16, 2009

Bill Long

  • 606 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

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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.
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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

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