Checking Defrost Bimetal - Whirlpool GSF26C5EXW Technical Education

Checking defrost Bimetal

WARNING
electrical Shock Hazard
disconnect power before servicing.
replace all parts and panels before
operating.
Failure to do so can result in death or
electrical shock.
Disconnect power to the refrigerator.
1. Slide the defrost bimetal off the coil.
2. Disconnect the wiring harness.
3. Disconnect the green chassis ground wire
attached to the evaporator heat shield.
4. Connect an Ohmmeter across the
Bimetal wires inserted into the wiring
harness connector. If the bimetal is
warm the meter should indicate an open
circuit. If the Bimetal is at normal freezer
temperature -5 to +5 degrees F, the
meter should measure less than 1 OHM
of resistance indicating a closed circuit.
Checking defrost Heater
Disconnect power to the refrigerator.
1. Disconnect the two black wires attached
to the defrost heater.
2. Connect an Ohmmeter across the heater.
In this example the resistance measured
is 31.6 OHMS.
note: Refer to the tech sheet for the refrigera-
tor being tested for the resistance of the
heater.
Freezer Components (continued)
1
4
2
4-7
2
3