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I have already installed a new defrost heater, a new limit switch, a new control board,
and replaced the thermister which sets on top of the evaporator coils.
All resistance checks taken from the appropriate pins in the electronic component
compartment (Wiring harness) indicate correct resistance for both thermister
circuit as well as heater/ limit switch circuits.
I just noticed a second thermister in the lower left corner of the evaporator
compartment.,..same part number as the other thermister..............
is this second thermistor also tied into the defrost circuit.?
The board that I replaced was WR55X10656.
The heater is WR51X10055.......It is a single element Heater and the only one
shown for Refrigerator GSS25JEPHBB on any of the parts diagrams and parts
websites that I checked. It is the same as the heater that came with the unit..
This is not one of the refrigerators that requires you to cut the white wire loop
from pin 2 on connector J1. Those refrigerators are all top loaders and have
different part numbers than mine.
Yes there are more than 2 thermisters in this unit. One in the refrigerator compartment,
and 2 in the freezer evaporator compartment. My question refers to the two in the
freezer evaporator compartment........are they both part of the defrost circuit?