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Coils keep freezing

Replaced control board and thermostat.

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  • Contributor
  • 15 Answers

HAVE U TESTED THE HEATER

Posted on Jan 18, 2013

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Posted on Jan 02, 2017

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Sea Breeze
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SOURCE: evaporator coil freezing, replaced main control

It is possible you have a defective fan motor in the condenser area or evaporator area. Sometimes when they become defective they will run for a while and just warm up and stop while the compressor continues to run. I learned that one on four costly returns to the home. The cost was to me not the customer. Thanks, Sea Breeze

Posted on Aug 05, 2009

aasc
  • 1606 Answers

SOURCE: coils keeping freezing up again

Yep , replace the # 4 and # 5 thermistors . The # 4 , is the small , white 1" long torpedo looking piece , clipped to the top of the coils on the left side , in the freezer , with 2 white wires going to it . This tells the control board , the temp of the coils , when to defrost , and when to stop defrosting . The # 5 thermistor , is located at the bottom left rear of the freezer ( or behind a small oval grill on the right ) with 2 white wires going to it . This thermistor , tells the control board , the freezer temp . The part number for both is WR55X10025 .

Posted on Oct 21, 2009

Sea Breeze
  • 4654 Answers

SOURCE: The condenser coils keep freezing up. I checked

Ok, sounds like you are on the right track. Let me see what you have for defrost control. I don't know what your OHM are through the defrost heater but it will show resistance because that is normal. Open or almost nothing would concern me more. You do have Adaptive Defrost Control inside the fresh food compartment and that may be the problem, I just checked one site and will be back soon. Sea Breeze

Posted on Dec 15, 2009

woodchuck789
  • 4066 Answers

SOURCE: Coils freeze up, replaced thermostat, defrost

It is normal for the coils to frost evenly all over but if it's not defrosted it will build up preventing proper cooling. After replacing your defrost components make sure the frost is being melted. The motherboard determines when to defrost based you your use of the freezer/fridge. It should defrost from once a day to once every two or three days.
Is the fan in the freezer running? It won't cool right without it. It should run when the compressor runs.
Are the coils frosting evenly? Uneven frost means it is low on freon and requires a tech to repair.
Is the fan underneath the fridge near the compressor running when the compressor runs. If not It won't cool properly.
Does the compressor ever cut off as it should when it reaches the selected temp.

Posted on Jan 20, 2010

  • 121 Answers

SOURCE: is the heater timer on ge refrigerators with

There are four things that will cause this problem and they are the defrost thermostat, defrost heater, evaporator thermistor and the main board. This page will help http://appliance-repair-it.com/GE-refrigerator-repair.html

Also yes, the board is the timer.

Posted on Sep 14, 2010

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I have a GE Profile refrigerator model #PFSSPKXBSS and the front control panel gets frozen. The only time I can change the settings is when the display panel goes haywire and starts changing all the...


solenoid for the ice dispenser flopper might get rusted, so the flop door would not close and freezer air would escape building up ice. need new solenoid assy for ice dispenser door and possible flopper.

Mar 27, 2015 | GE Refrigerators

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Coil freezes


perhaps the drain is plugged in the freezer.

Have you checked this, please let me know what you find and we can go from there to figure this out.

May 12, 2008 | Hotpoint HSS25GFP Side by Side...

1 Answer

Fixya manuals


It doesn't defrost
  1. Defrost control board
If the defrost function is not working on your refrigerator it could be an issue with the defrost control board. This control board oversees several internal conditions and regulates the activation of the defrost cycle. A faulty board can be the primary reason your refrigeration unit is not transitioning to the defrost cycle. Over time, the buildup of ice on the evaporator coil will prevent the refrigerator and freezer from maintaining proper internal temperature. It is advisable to first check the defrost heater and the defrost thermostat for continuity prior to replacing the defrost control board.
  1. Main control board
A possible cause for a refrigerator not defrosting, especially on more modern units, is the main control board. The main control board acts as a "brain" for the unit controlling the defrost cycle, compressor, and run time, and essentially acts in place of the defrost timer. The control board can be tested using an ohm meter for functionality and will need to be replaced if bad.
  1. Defrost timer
If the refrigerator is not defrosting the timer could be malfunctioning. Numerous times throughout the day the defrost timer should cycle the defrost heater on as a means to melt frost buildup on the evaporator coils in the freezer. If this timer does not cycle on, then it may be faulty and require replacement.
  1. Defrost heater assembly
If your refrigerator is not defrosting accurately this could be an indication that your defrost heater assembly has failed. This could cause the frost to accrue on the evaporator coils, eventually blocking the airflow resulting in the unit not cooling properly. The defrost heater assembly can be monitored for continuity using an ohm meter and will need to replaced if there is none present.
  1. Defrost thermostat
Another cause of your refrigerator not defrosting is a faulty defrost thermostat. A requirement for the defrost heater to activate to melt away frost on the evaporator coils is a functional defrost thermostat. The defrost thermostat senses the temperature of the evaporator coils and initiates the thawing process by activating the defrost heater. If the thermostat is faulty, it will not sense the lowering temperature of the coils and will not turn on the heater, resulting in an advanced frost build-up. The defrost thermostat can be checked for continuity by using an ohm meter; if there is no continuity the damaged part will need to be replaced.
  1. Defrost sensor with fuse
Another possible cause of a refrigerator that does not defrost properly is a defrost sensor with a fuse. If the defrost sensor fails, the fuse acts as a one-time-only fail safe for the sensor -- if the sensor does not shut off the defrost heater, the fuse will blow when the set temperature is reached. This safety precaution is to keep excessive harm from your unit by the heater and is a one-time use, resulting in the replacement of the entire defrost sensor.
Defrost drain problems
  1. Clogged or freezing defrost drain
If you are experiencing defrost drain issues, it is possibly due to a clogged or freezing drain that is blocking water flow to the bottom of the freezer. This will cause the defrost water to drain and drip down to the bottom of the freezer section. To correct this issue, thaw any ice or remove debris that could be causing the clogged drain or replace the drain heater.
  1. Drain heater
If you are experiencing defrost drain problems, inspect the defrost drain heater. A dislocated or burnt out drain heater will result in the drain tube freezing over. Attempt to return the part to the designated position or replace the damaged part to correct the issue. Search Over 2 1 Million Appliance Parts

Sep 06, 2014 | GE Monogram ZIRS36NM 36'' Stainless All...

1 Answer

Freezer coils freezing up?


it could be the thermistor that is out of range or a bad mother board. the thermistor is not expensive. if you have a bad mother board it will do the same thing after you replace the thermistor. make sure you replace the th one attached to the evap coil.

Apr 08, 2012 | Hotpoint Refrigerators

1 Answer

The condenser coils keep freezing up. I checked


Ok, sounds like you are on the right track. Let me see what you have for defrost control. I don't know what your OHM are through the defrost heater but it will show resistance because that is normal. Open or almost nothing would concern me more. You do have Adaptive Defrost Control inside the fresh food compartment and that may be the problem, I just checked one site and will be back soon. Sea Breeze

Dec 15, 2009 | Maytag (MSD2351KES) Side by Side...

1 Answer

Coils keeping freezing up again


Yep , replace the # 4 and # 5 thermistors . The # 4 , is the small , white 1" long torpedo looking piece , clipped to the top of the coils on the left side , in the freezer , with 2 white wires going to it . This tells the control board , the temp of the coils , when to defrost , and when to stop defrosting . The # 5 thermistor , is located at the bottom left rear of the freezer ( or behind a small oval grill on the right ) with 2 white wires going to it . This thermistor , tells the control board , the freezer temp . The part number for both is WR55X10025 .

Oct 21, 2009 | GE GSH22JFT Side by Side Refrigerator

1 Answer

I have an upright Premium larder fridge,about 18/12 old. It keeps freezing everything. We have 'defrosted' it more than once but it keeps happening. Any ideas?


If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

You can turn the defrost timer till it clicks and everything shuts down. The heater should now come on. If it does, replace the timer. If it doesn't, check the heater and defrost thermostat. Turn the timer again till everything starts back up to end the defrost cycle.
How to check everything
http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php


Sep 03, 2009 | Liebherr KDPes 3142 Premium

1 Answer

The coils keep freezing up.


If the evaporator coils behind the back panel of the freezer are icing up because of auto defrost failure that will stop the circulation of cold air and eventually affect the freezer too.

check defrost timer, defrost heater, defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

How to check stuff>
http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php

Jul 13, 2009 | Refrigerators

1 Answer

Frigidare refrigerator FRS26ZTH FREEZER FREEZING UP/FRIG NOT COOL


also check defrost timer,defrost thermostat. In most newer models the timer has been replaced by an electronic control board. If the heater and thermostat are ok it’ll be the control.

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2 Answers

Not defrosting.


adaptive defrost board, is hte board in question im assuming. ite located in top right hand corner of refrig section, under the shrouding. there are finger holes in the back of hte top controll panel to reomove the plastic housing(it kinda snaos down and pulls out. from there their are 2 1/4 screws holding hte control up and alsoa philips screw behind each of hte light bulbs. hte control will then drop far enough to gain acess to the board. its a little tricky to prop tha panel , but it will come

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