SOURCE: Freezer defrosts too long.
Outside of HVACRH20 excellent advice, here a few stats about this model. The main control board will monitor the resistance of the evaporator thermistor. This is located near the top of the evaporator. This thermistor determines when the unit goes into and out of defrost. The bi-metal is redundant to the operation. It will terminate the defrost only if the thermistor fails. Check the values of the thermistor with the attached chart. Catriver..post back
SOURCE: ge tfx25jr
Defrost drain is located behind the freezer wall at the bottom of the freezer. Remove back cover and flush out drain using a turkey baster and hot (not boiling) water.
SOURCE: Ge Profile Top freezer-not cooling/not freezing
Evaporator fan motor inside the freezer is working? Any frost on the freezer back wall?
This is the fan inside the freezer section, it will circulate the cold
air around in the freezer and blow the cold air from the freezer into
the fresh food section, it also sucks the warm air from the fresh food
section back into the freezer to be re-cooled.
Hot condensor coils ( under the refrigerator ) been cleaned recently?
**GSS25LGMA**
That is part of a full model#.
Evaporator fan motor
SOURCE: Where is the defrost timer located on GE
This model does not have a defrost timer. It has a motherboard. You must jump out the plug to the main board to test the defrost circuit. In order to do this take the cover off of the main board, find the three wire connector on the base of the main board, connecter is normally blue in color. On the board itself it will identify termials as line, defrost, and compressor. To test you must create a jumper wire.Install the jumper in the plug terminals identified as line and defrost.This will turn the defrost heater on. If the heater does not come on, look for a defective heater or a defrost thermostat(mounted on the top of the evaporator). If the heater does come on replace the thermister(located on top of evap, white in color and has two white wires part#WR55x10025)
SOURCE: GE TBX18BLJ --Freezer comp frosts/ices up. Defrost
The next step would be to unplug the refrigerator and remove the rear panel and defrost so that you can unplug the defrost heater on one end and check the continuity. 305175 Defrost Heater and defrost thermostat Part number 3489. If you change the defrost heater you should also change the defrost thermostat. Let me know the results. Remember above 60 degrees the defrost thermostat will show open with your OHM meter. Sea Breeze
http://appliancepartsse.blogspot.com/
WR51X10042
WR50X10068 If you would like instructions on how to remove and replace I will be here to answer any questions you may have. How to test these parts can be found on the same page as the replacement parts, Thanks Sea Breeze
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