Unit trips the household circuit breaker when it starts

Safety: Leave the breaker off until the fault is identified. Use a multimeter only if you are trained and comfortable working with electrical systems.

• 1. Inspect power cord: Look for cuts, crushed sections, or burn marks. Replace if damaged.
• 2. Check for obvious shorts: Remove panels and look for wires pinched between metal parts or insulation rubbed through. Repair or replace damaged wiring.
• 3. Isolate components: Disconnect motors (fan, pumps) one at a time and attempt to power the unit to see if the breaker still trips. The component that, when connected, causes tripping is likely shorted and should be replaced.
• 4. Compressor test: Measure resistance from each compressor terminal to ground. Any continuity indicates a shorted compressor requiring professional replacement.