Question about Frigidaire FAH126N2T Thru-Wall/Window Air Conditioner

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Constant noise when compressor running

Window a/c unit - it is cooling but when the compressor engages there is a constant noise - started a few days ago

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  • Reeferman
    Reeferman May 11, 2010

    Are the cooling fins clean, both inside and out?


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  • 158 Answers

Most likely there is something touching the body so try to lift the back side and if noise goes away put a block of wood under the unit

Posted on May 19, 2009

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Posted on Jan 02, 2017

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My kenmore 253 upright freezer/fridge is not cooling the fridge part correctly. It's cool but not cool enough to keep the food fresh. The freezer works well sometimes. And sometimes it seems that it's not...


Try this test. Set a window fan behind the fridge to constantly blow air across the lower coils at the floor. If the fridge works well after a while of this, then the lower fan on the fridge needs replaced. Sometimes though, after a while, the fan will finally start working again because the cycle has finally corrected itself with the test. Leave the window fan run on low for a few days before removing it. The hum you hear is the compressor moving the coolant and is supposed to do the hum sound. That's good. Now once the fridge is working, and you still have a good freezer section and not cool enough below in the fridge for you, there is a knob that sets the cool lower by opening flaps under the freezer to let more cold down to the fridge area. Set this knob to colder and the flaps will open more.

Nov 11, 2014 | Refrigerators

1 Answer

Frigidaire refrigerator not cooling at times


Click this link below for problemRefrigerator is not cooling properly? http://technoanswers.blogspot.com/2011/06/refrigerator-is-not-cooling-properly.html
---------This will help.Thanks.

Feb 09, 2012 | Frigidaire Refrigerators

1 Answer

Amana ASD2522WRW03 - tHIS UNIT HAS EXCESSIVE NOISE AND IT RUNS CONSTANTLY DAY AND NIGHT -- IS THIS NORMAL? iT IS APPROXIMATELY 1 1/2 YRS OLD.


Hi,

Many times a freezer and/or refrigeratordo not work right because of a dirty condenser coil...there are also many otherthings that can go wrong. If you are hearing a clicking or buzzing thencheck out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to starttrouble shooting your unit...and something that you can do rather then callinga repair person to do a simple thing for you...

Refrigerator Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay
Refrigerator or Freezer not Cooling or Getting Cold

heatman101

Aug 28, 2011 | Amana ACD2232HR Side by Side Refrigerator

1 Answer

The Cool mode wont cool. It's just like fan mode. I cleaned all the dust off the panels and still wont blow cool air.


First the weather is extremely hot mid 90's and humid.I have a Trane combination a/c heat pump system. The A/C was pumping out warm air.I called for a technician and the problem was the compressor was not working.The solution/fix was to replace compressor start capacitor.The technician was here for about an hour.The compressor was running before he left however I informed him the air coming out of the a/c ducts after one hour of run time did not feel as cool as usual. It took from 1pm until 10 pm at night to cool the house air down to 80 degrees and the system ran constantly.I left it on 80 as that is where I usually leave it. Today again it is running all day barely able to keep the house at 80.My home was built in 07 block house, well insulated with thermal double pane insulated windows.I suggested to the tech to check the refrigerant level but he did not think it necessary and did not perform the check while here. The unit will cool the house down to 80 degrees but runs constantly.My question is: Should I have a technician come check out the system to insure proper refrigerant levels and pressure????????

Jul 30, 2011 | Haier HWR06XC6 Wall/Window Air Conditioner

2 Answers

Sub zero. 650 reefer. Significant hum coming from top mounted compressor, but still marginal cooling. Now a louder hum and unit no longer cooling.


Hi roger,

I see you concern, and if the unit does not cool anymore and there is a humming noise then you will need to replace or have your compressor repaired no doubt.

Have a nice day,

mvincentc

Jul 03, 2011 | Kitchen Ranges

1 Answer

Hi. I recently installed 1.5 T, 3 * Split AC, LG. Whole day the AC works fine and no problem in cooling too. But once in 2 day outdoor unit start making thudding noise continously and does not stop for 4...


Hello

Sounds like the compressor is shuting down on high heat.There could be a couple reasons for this.
1 Check that proper voltage is being supplied to compressor.
2 Freon level may be low.This would be a service call.
3 Bad or intermitent connection at thermostat.
4 Main contacts to compressor sticking,usually burnt or pitted.

Apr 08, 2011 | LG Heating & Cooling

3 Answers

Unit will not stay cool. Is it a thermostat, compressor?


Small refrigeration units like this one like to fail to cool by developing a small leak and slowly
leaking refrigerant.
THERMOSTAT FAILURE CHECK:
A technician will check the thermostat using using a DMM (digital multimeter). But you can suspect the thermostat if you set the thermostat high and the compressor motor does not run,
then set thermostat low, and the compressor motor also doesn't run - in other words, the thermostat is failing to start the refrigerator's refrigeration system no matter what its setting - an obvious failure of the thermostat.
COMPRESSOR FAILURE CHECK:
If the compressor is dying, you would hear the compressor running almost constantly, but not
sounding quite right (uneven noise, clunking, tapping).
REFRIGERANT LEAK CHECK:
If you unit is low on refrigerant (due to a leak), the compressor motor will be running
almost constantly, but it will sound Ok.

Mar 24, 2011 | Danby DWC513BLS Wine Cooler

1 Answer

Ac units in apt. is fully charged,but it blows cool to cold air and will constantly run all day with out shutting off. at night when it cools off outside it will run like its supposed to. the fan unit...


Your ac thermostat is defective and not switching off the compressor resulting in excess cooling and need replacement. Also ensure that all doors and windows are closed. Could be some window is opened behind the curtain without your knowledge. That could be yet another reason for your unit continuously running.
Finally check your relay unit and this should solve your problem!

Jul 10, 2009 | Heating & Cooling

2 Answers

Constantly running


If the thermistor sensor for the temperature control is going out that could cause the compressor the think it needs to keep running to cool the unit. The fan near the compressor should run only when the compressor runs. If the fan is running and the compressor isn't then you likely have a compressor start device problem or the overload is tripping from high heat, etc. That would make the compressor run (or try to) every minute or two if not just run continuously. Make sure all the coils under the unit are clean of fuzzy's and hair, etc. by doing a good vac. clean on them also. The compressor can be slightly warm to the touch but shouldn't be so hot that it is hard to keep you r hands on it for long. If it's around 130 degrees F, then it may be the start device problem and is in an overheat condition.

Dec 09, 2006 | Roper RT21AKXKQ Top Freezer Refrigerator

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