Unit trips the household RCD/GFCI when plugged in or when heating starts.

Safety first: Do not repeatedly reset the RCD and continue using the cooker; this indicates a safety issue. Unplug immediately.

Steps to investigate:

• Dry the unit: If the cooker was recently washed or exposed to heavy steam, allow it to dry for 24–48 hours in a warm, dry place.
• Inspect wiring: Remove the base and check all wires for damaged insulation or contact with sharp metal edges. Repair or replace as needed.
• Test heater insulation: Using a megohmmeter (insulation tester), check resistance between heater terminals and chassis. Low resistance indicates a failing element that must be replaced.
• Check for water ingress: Look for signs of water trails or corrosion inside the housing and around the lid area.

Warning: Earth leakage faults are serious; if you lack proper test equipment, seek professional service.