Washer-dryer trips the household circuit breaker or RCD during operation.

Safety first: Do not repeatedly reset a tripping breaker. Unplug the appliance and do not use it until the fault is found.

• Inspect for leaks: Check inside the machine for signs of water around the heater, pump, or hoses that could reach electrical parts.
• Test heater insulation: With a megohmmeter (insulation tester), check the wash and dryer heaters for leakage to earth. Replace any heater with poor insulation.
• Check power cord and filter: Inspect the cord and mains filter for damage or burning. Replace if necessary.
• Professional diagnosis: If the cause is not obvious, have a qualified electrician or appliance technician perform detailed insulation and earth leakage tests.