Defrost system failure causing ice buildup
Why it happens here
Older Whirlpool and GE refrigerators common in Battlefield's historic-area homes often have defrost heaters and timers that wear out after 12 to 15 years. Ice builds on the evaporator coil and blocks airflow.
Our approach
We test the defrost heater, timer, and thermostat with a multimeter, replace the failed part, and clear the drain. We also check the door gasket while we are there to prevent recurrence.