| Fridge running but warm | Dirty condenser coils, failed evaporator fan | Coil condition, fan motor, temperatures with a thermocouple probe |
| Frost wall in the freezer | Defrost heater, defrost thermostat or board failure | Continuity on each defrost part with a multimeter |
| Fridge clicks, no hum | Start relay or overload failure | Relay, overload and compressor windings |
| Water on the floor under the fridge | Clogged defrost drain, cracked water line or inlet valve | Drain tube, ice maker supply line, inlet valve fittings |
| Washer will not drain | Blocked pump filter or failed drain pump | Pump filter, drain hose, pump motor resistance |
| Front-loader door stays locked | Door lock assembly or water left in the tub | Lock switch, water level sensor, control signals |
| Washer bangs on spin | Worn shocks, springs or drum spider | Suspension parts, drum bearings, leveling |
| Dryer runs with no heat | Thermal fuse, heating element or gas igniter | Fuse, element and igniter continuity, vent airflow |
| Dryer squeals or thumps | Worn rollers, idler pulley or belt | Drum support rollers, pulley, belt condition |
| Dishwasher leaves water in the tub | Clogged filter, kinked hose or drain pump | Filter, air gap, drain hose, pump |
| Dishes come out cold and wet | Heating element or high-limit thermostat | Element resistance, thermostat continuity |
| Gas oven clicks but will not light | Weak hot surface igniter | Igniter amp draw with a clamp meter, gas pressure |
| Oven temperature way off | Temperature sensor or control board | Sensor resistance against the tech sheet chart |
| Microwave runs but does not heat | Magnetron, diode or capacitor | High-voltage circuit after safe discharge |