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Where is the defrost timer and thermostat located?

How do I troubleshoot the defrost timer and defrost thermostat and where are they located?

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How to replace defrost timer


There is not a defrost timer on a model PSC23NGN. If your model is the=> PSC23NGN and the refrigerator is not defrosting the problem is most likely the Defrost Heater and Defrost Thermostat that need replaced. The heater is item location 230 and the defrost thermostat is item location 240 in this photo=> HERE
The part numbers for the Defrost Heater are WR51X10055 Defrost Heater Assembly The part number for the Defrost Thermostat WR50X10028 Defrost Thermostat
I am here if you have questions, Thanks John Tripp
Appliance 911
Contact me here.

Jul 06, 2014 | GE PSC23NGN Side by Side Refrigerator

1 Answer

Freezer is not deforsting


If your model you listed is a TFX27PRBWW it will have a defrost timer located in the fresh food compartment and behind the controls. It's location is 257 in this photo HERE I would like you to turn the timer clockwise slowly until youi hear the compressor and fans stop. This should put the refrigerator into defrost if the defrost heater is still working. Did you hear any crackling or sizzle when place into defrost this way? Wait up to 35 minutes for the timer to come out of defrost and it should restart the refrigerator compressor and fans. If it does not come on automatically then simply turn the timer slowly clockwise again until they do restart. If you need to turn timer again to start refrigerator you will need to replace the timer=> WR9X489 Defrost Timer
2_1_2013_8_42_52_pm.jpg

If the defrost timer is not the problem then we move to the freezer side, remove the rear panel of freezer and defrost the frost covering the evaporator as in this photo HERE The model TFX27PRBWW takes a=> WR51X10055 Defrost Heater Assembly
2_1_2013_8_53_33_pm.jpg

and the defrost thermostat=> WR50X122 Defrost Thermostat
2_1_2013_9_08_25_pm.jpg

The defrost heater is location 230 and the defrost thermostat is location 24 in this photo HERE Instructions in testing these parts are located on the parts pages I listed above. Please let me know if the model number is different than the one above your post so I may help you better, Thanks Sea Breeze

Feb 01, 2013 | GE Profile 26.6 cu. ft. Side-by-Side...

1 Answer

I'm getting ice buildup in on spot in my fridge. Whats causing that?


Defrost problem. Check, defrost timer, thermostat, heater are working properly.
First, locate the defrost timer which may hiddenbehind corners of the fridge at the back bottom, in some models located in theceiling of the fresh food section or behind the cold control cover. Once youlocate the defrost timer, slowly turn the screw in the middle of the defrosttimer with straight screwdriver until the fridge shuts off. Now it's indefrost. If the defrost heater(s) starts, replace the defrost timer and defrostthermostat. If the heater(s) does not start, unplug wire cord to check ohm testfor continuity of heater. If continuity is there, plug cord wire which givespower 120volts (check specification) to heater. If heater no starts, bypassdefrost thermostat by join the 2 wires in the defrost thermostat. If the heaternow comes on, replace the defrost timer and defrost thermostat. If the heateritself is bad, replace it. Thanks and hope helpful

Feb 16, 2011 | Delfield 4472N-18 Stainless Steel

1 Answer

Not defrosting


First, locate the defrost timer which may hidden behindcorners of the fridge at the back bottom, in some models located in the ceilingof the fresh food section or behind the cold control cover. Once you locate thedefrost timer, slowly turn the screw in the middle of the defrost timer withstraight screwdriver until the fridge shuts off. Now it's in defrost. If thedefrost heater(s) starts, replace the defrost timer and defrost thermostat. Ifthe heater(s) does not start, unplug wire cord to check ohm test for continuityof heater. If continuity is there, plug cord wire which gives power 120volts(check specification) to heater. If heater no starts, bypass defrost thermostatby join the 2 wires in the defrost thermostat. If the heater now comes on, replacethe defrost timer and defrost thermostat. If the heater itself is bad, replaceit. Thanks and hope helpful.

Feb 14, 2011 | Electrolux ER7926B Bottom Freezer...

1 Answer

The fridge is freezing all food contents even when on factory setting 6. How do I resolve this?


It's common problem. You have to check Defrost timer, thermostat and defrost heater. Any one malfunction, you will get over frosting. How to check?
First, locate the defrost timer which may hidden behindcorners of the fridge at the back bottom, in some models located in the ceilingof the fresh food section or behind the cold control cover. Once you locate thedefrost timer, slowly turn the screw in the middle of the defrost timer withstraight screwdriver until the fridge shuts off. Now it's in defrost. If thedefrost heater(s) starts, replace the defrost timer and defrost thermostat. Ifthe heater(s) does not start, unplug wire cord to check ohm test for continuityof heater. If continuity is there, plug cord wire which gives power 120volts(check specification) to heater. If heater no starts, bypass defrost thermostatby join the 2 wires in the defrost thermostat. If the heater now comes on,replace the defrost timer and defrost thermostat. If the heater itself is bad,replace it. Thanks and hope helpful.

Feb 02, 2011 | Hotpoint FFA90 Bottom Freezer Refrigerator

1 Answer

Amana ssd21sw stop cooling freezer side frost in rear wall any sugestions


Defrost cycling problem which will affect cooling the fridge compartment by struck the freezer fan's function.To solve defrost problem:
First, locate the defrost timer which may hidden behindcorners of the fridge at the back bottom, in some models located in the ceilingof the fresh food section or behind the cold control cover. Once you locate thedefrost timer, slowly turn the screw in the middle of the defrost timer withstraight screwdriver until the fridge shuts off. Now it's in defrost. If thedefrost heater(s) starts, replace the defrost timer and defrost thermostat. Ifthe heater(s) does not start, unplug wire cord to check ohm test for continuityof heater. If continuity is there, plug cord wire which gives power 120volts(check specification) to heater. If heater no starts, bypass defrost thermostatby join the 2 wires in the defrost thermostat. If the heater now comes on,replace the defrost timer and defrost thermostat. If the heater itself is bad,replace it. Thanks and hope helpful.

Feb 01, 2011 | Amana 22.6 cu. ft. Side-By-Side...

1 Answer

Defroster not working


First, locate the defrost timer which may hidden behindcorners of the fridge at the back bottom, in some models located in the ceilingof the fresh food section or behind the cold control cover. Once you locate thedefrost timer, slowly turn the screw in the middle of the defrost timer withstraight screwdriver until the fridge shuts off. Now it's in defrost. If thedefrost heater(s) starts, replace the defrost timer and defrost thermostat. Ifthe heater(s) does not start, unplug wire cord to check ohm test for continuityof heater. If continuity is there, plug cord wire which gives power 120volts(check specification) to heater. If heater no starts, bypass defrost thermostatby join the 2 wires in the defrost thermostat. If the heater now comes on,replace the defrost timer and defrost thermostat. If the heater itself is bad,replace it. Thanks and hope helpful.

Jan 31, 2011 | GE Profile 25.6 Cu. Ft. Side-by-Side...

1 Answer

The freezer retains frost and obstructes the fan.


Defrost cycling is poor.
Locating the defrost timer hiddenbehind the back bottom corners of the fridge at the bottom, in some units it's located in the ceiling of the fresh food section,and some behind the cold control cover. Once you locate the defrost timer,slowly turn the screw like wheel in the middle of the defrost timer with astraight screwdriver until the fridge shuts off. You are now in defrost. If thedefrost heater(s) comes on now, replace the defrost timer and defrostthermostat. If the heater(s) does not come on, you can ohm test the defrostheater for continuity or volt test for 120 volts to the heater(s). If you haveno power to the defrost heater(s) you can also bypass the defrost thermostat tosee if the defrost heater will come on, join the 2 wires together to bypass thedefrost thermostat. If the heater now comes on, replace the defrost timer anddefrost thermostat. If the heater itself is bad, defrost the fridge with a hairdryer, replace the defrost heater* and defrost thermostat. If the defrost timerseems "hot" to the touch or is noisy ( like a ticking or screechingnoise )...replace it. Once defrost cycling is cleared, you will get better cooling in fridge compartment also. Thanks.

Jan 31, 2011 | Whirlpool Refrigerators

1 Answer

Hi,my fridge is not defrosting.what could be the problem?


First, you have locate the defrost timer which may hidden behind corners of the fridge at the back bottom, in some models located in the ceiling of the fresh foodsection or behind the cold control cover. Once you locate the defrosttimer, slowly turn the screw like wheel in the middle of the defrost timer witha straight screwdriver until the fridge shuts off. Now it's in defrost. Ifthe defrost heater(s) starts, replace the defrost timer and defrostthermostat. If the heater(s) does not start, unplug wire cord to check ohm test for continuity of heater. If continuity is there, plug cord wire which gives power 120volts (check specification) to heater. If heater no starts, bypass defrost thermostat by join the 2 wires in thedefrost thermostat. If the heater now comes on, replace the defrost timer anddefrost thermostat. If the heater itself is bad, replace it. Thanks and hope helpful.

Jan 28, 2011 | Wagan ThermoElectric FridgeWarmer

1 Answer

Freezer frosts up and will not defrost itself anymore. Do I need a new defrost timer and/or thermostat? If so, where is the timer/thermostat located in the refrigerator?


It could also have a bad defrost heater. The heater and defrost thermostat are located mounted on the evaporator coil and the timer is usually mounted in the control panel with the control thermostat or in the compressor compartment.

Aug 28, 2009 | Maytag Refrigerators

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