Dryer causes the household circuit breaker or RCD to trip during operation.

Safety first: Do not repeatedly reset a breaker that trips. Unplug the dryer and investigate.

• Visual inspection: Check the power cord and plug for damage or burn marks. Replace if necessary.
• Check for moisture: Inspect internal components for signs of water ingress, especially around the condenser and pump area. Dry thoroughly and correct any leaks.
• Test heater to ground: With a multimeter, check resistance between each heater terminal and chassis. Any low resistance indicates a shorted element that must be replaced.
• Professional diagnosis: If the fault is not obvious, have a qualified technician perform insulation resistance tests on the motor, compressor, and wiring.