| Fridge warm, freezer still cold | Frost-choked evaporator, failed defrost heater or evaporator fan | Panel pulled to inspect frost pattern, defrost heater and bi-metal tested for continuity with a multimeter, fan motor voltage |
| Fridge and freezer both warm, clicking sound | Bad start relay or overload, failing compressor, dirty condenser | Start device tested, compressor windings checked for resistance and ground, condenser coil and fan inspected |
| Washer will not drain or spin | Clogged drain pump or coin trap, failed lid lock, worn drive belt or coupler | Pump filter cleared, pump motor resistance, lid switch and door lock signal, error codes pulled in service mode |
| Dryer runs but no heat | Blown thermal fuse, open heating element, bad gas valve coils or igniter | Fuse, element and hi-limit tested for continuity, igniter amp draw with a clamp meter, vent airflow checked |
| Dishwasher leaves water in the tub | Clogged filter or air gap, failed drain pump, kinked drain hose | Filter and sump cleaned, drain pump tested, hose routing and high loop verified |
| Gas oven slow to heat or will not light | Weak hot-surface igniter, faulty safety valve | Igniter current draw measured against spec, valve continuity, supply pressure checked with a manometer |
| Electric range element dead | Burned element, loose terminal, failed infinite switch | Element resistance, switch output voltage, terminal block and wiring inspected for heat damage |
| Microwave runs but does not heat | Failed magnetron, high-voltage diode or capacitor | Capacitor safely discharged first, then magnetron, diode and transformer tested per the tech sheet |
| Ice maker stopped producing | Frozen fill tube, bad water inlet valve, low water pressure | Fill tube thawed, inlet valve coil resistance, water pressure at the valve, filter age |