GE profile refrigerator not cooling both sides. 99th Ave/Union Hills Model PSHS6PGZBESS CONCERN: Customer reports refrigerator is not getting cold on refrigerator side. DIAGNOSTIC AND CAUSE: Inspected compressor operation, evaporator fan and condenser fan operation, all normal. Found frost build up on evaporator coils. Tested defrost heater for continuity, defrost heater good. Tested bi metal and thermistor shorted. CORRECTION: Replaced defrost bi metal and limiter. Tested operation, all normal upon completion.