warning - Whirlpool
warning - Whirlpool
warning - Whirlpool
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WARNING<br />
Electrical Shock Hazard<br />
Disconnect power before servicing.<br />
Replace all parts and panels before operating.<br />
Failure to do so can result in death or electrical shock.<br />
DEFROST HEATER & BIMETAL<br />
Bimetal<br />
Defrost Heater<br />
Refer to page 4-27 for the procedures for accessing<br />
the defrost heater & bimetal.<br />
1. Run the diagnostics tests (see page 6-2)<br />
and check for the proper operation of the<br />
defrost heater and bimetal in step 07.<br />
NOTE: If the bimetal is closed, the voltage at<br />
the defrost heater terminals will be 120 volts<br />
AC. The remaining steps will allow you to<br />
check the resistance of the defrost heater and<br />
bimetal.<br />
2. Unplug refrigerator or disconnect power.<br />
3. Disconnect one of the wires going to the<br />
defrost heater.<br />
4. Set the ohmmeter to the R x 1 scale.<br />
5. Touch the ohmmeter test leads to the defrost<br />
heater terminals. The meter should<br />
indicate approximately 15 to 25 Ω.<br />
6. Touch the ohmmeter test leads to the defrost<br />
bimetal wire connectors. The meter<br />
should indicate as follows:<br />
• With the bimetal below 20°F, the meter<br />
should indicate continuity (0 Ω).<br />
• With the bimetal above 46°F (8.9°C),<br />
the meter should indicate an open circuit<br />
(infinite). The bimetal will close @<br />
34°F (1.1°C).<br />
5-7<br />
WATER VALVE<br />
Refer to page 4-30 for the procedure for accessing<br />
the water valve.<br />
1. Unplug refrigerator or disconnect power.<br />
2. Disconnect the wire connectors from the<br />
water valve solenoid terminals.<br />
3. Set the ohmmeter to the R x 1 scale.<br />
4. Touch the ohmmeter test leads to the solenoid<br />
terminals. The meter should indicate<br />
approximately 180 to 190 Ω.
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