defrost sensors

[JPG]

 this fridge has  3 sensors in fridge, which one is the bi-metal for the heater??? what do the other sensors do?   how many r routed through the heat element?/ I figure u only need 1 not 3. ge is crazy !!   tks for your help   jPG

Model gts22wcpbrww

[JWWebster]

It is a metal disk that mounts on the evaporator coils. It closes the heater circuit at 25 f so that the heater can warm up the coils. When the temp reaches 50 f that is warm enough for the heater to melt  frost without disturbing the freezer food. If the heater were to remain on for 21 minutes of defrosting then that would not be pretty. So the bi-metal kills the heater.

[jumptrout51]

The other sensors are thermistors that control temperature, fan,dampers etc.

[JPG]

does anyone know how to put it in defrost mode??   tks  jpd

[jumptrout51]

In the control panel there is a small hole about the size of a dime.
Insert a flat blade screwdriver and turn the cam clockwise until the unit shuts off. It will then be in the defrost mode. Turn it slowly.

[Repair-man]

a small hole about the size of a dime...Insert a flat blade screwdriver

Or, insert a dime 

Sorry, JT, just sucking up...

[JWWebster]

http://www.repairclinic.com/SSPartDetail.aspx?s=t-gts22wcpbrww-%3d%3dc221i311082&PartID=311082