Question about Frigidaire FRT21H8 Top Freezer Refrigerator

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Fridge doesn't stop running

Fridge freeze very well, it just doesn't stop , even if you put the setting at one, it runs for a very very long time

is it the thermostat ?

I noticed that the pipe outside that goes into the feezer compartment gets all frosted after 10 minutes or so
I can make it stop between 0 and 1 and will restart but still run for a long time, it is a belanger frost free around 25 years old

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  • 170 Answers

Number one when you can always provide model number and make...it helps enormously in troubleshooting otherwise you get these long detailed threads...from an anal tech like myself.

{Which you did provide...this is a plug-in thread I am putting in for you..Belanger...check your condenser...to see how clean it is..it sounds as if...the motor could be going out or not turning as fast an rpm as needed to remove the heat...(or it is dirty)...good luck...and always there is the compressor.}

Cold is a relative term....how cold...use a thermometer...and determine if the freezer...is at least..10-20 degrees or colder if not it is not cold enough...and here are some generic answers for that problem....I will list at the bottom of this thread...if it is

A. You will need to determine if you are getting air flow into the refrigerator side compartment..there is usually a baffle...that controls...the amount of air-flow into the frig side...it can be adjusted...if not it could be broken or have come loose...it is rare...

B. Is something blocking the baffle...as in food ...groceries...

C. The thermostat could be out of adjustment...and or going bad...(how old is the frig)..

D. Some newer units have a dual fan system..(but rare)..if the frig side fan is out...this could be the problem...

There are several reasons this can be happening...

1. The seal on the door may have a tear or may not be seating properly...this allows excess warm air into the freezer compartment and in its effort to remove the same ...frost appears.

2. There is something call a thermistor (which senses temp and ice build up) that is cycled on and off as needed to remove excess frost accumulation and or ice buildup on the evaporator (freezer) coils...it is a heat strip which actually defrost the frost/ice. If this is not working frost will accumulate and eventually it will become Ice......now the remarkable thing about Ice accumulation is that you would think everything would remain cold or get colder ..however in this case the opposite occurs...it insulates the coils and thereby increasing the temperature...put a thermometer...one that is calibrated properly...(calibration can be set by placing a thermometer into a glass of ice water...the temp of a glass of ice water..after a few minutes setting will be exactly 32 degrees)..if the temperature of your refrigerator is gradually rising over the period of a week...you will need to call a tech or replace the thermistor and or trouble shoot other problems that may have occur such as..

3. The evaporator fan may be going out although they usually make a high pitched whining noise of a whirring noise before they go out...not always and if they are intermittently cycling off then frost would build up...do you always here a fan running when you open the freezer and hold the button in above the door..(fan switch)...if so that is good...fan is working...but it may be cycling off at times when no one is aware.
P.S. the odds of it being due to overfilling are slim...I have been in the industry for 35 years and that is what freezers do...which a lot of people don't realize is that freezers don't actually cool anything ..they just remove heat and when you remove all the heat all that is left is cold (like in space) and when heat is removed quickly frost can appear like when you blow your breath on a freezing cold window..then right your name....but I digress...any way..if there was an excess of heat due to a lot of new food in the freezer it would correct itself by one of the processes i mentioned above..and it would never result in Ice..you probably have one or more of the problems I mentioned...evaluate how long its been going on...

4. Thermostat could be out of adjustment..and or not functioning
properly..which would delay or inhibit a defrost cycle..from occurring..unfortunately almost all of these problems require a tech...or a good handyman.

This should lead you in the right direction...if you need help in finding a reputable service company in your area let us know..I hope this has been helpful..if so PLEASE rate me....thank you... .......The Fang

Posted on Apr 22, 2009

  • Edouard Blinn Sep 12, 2012

    Hi, I need someone in my area to help fix high pitched whining noise of a whirring noise. Montreal, Quebec H2T 2E3

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