Carpet cleaner trips the household circuit breaker or blows fuses when switched on.

Safety first: Do not repeatedly reset the breaker. Unplug the unit and keep it unplugged until inspected.

• Check for visible damage: Inspect the power cord, plug, and exterior for burn marks or melted plastic.
• Look for water ingress: If the unit was used on very wet carpets or stored damp, open the housing and check for moisture around the motor, PCB, and heater. Dry thoroughly before further testing.
• Isolate components: A technician can disconnect the motor, heater, and pump one at a time to identify which component is causing the short.
• Replace faulty component: If the motor or heater tests short to ground with a multimeter, replace the entire assembly.

Because this involves mains safety, if you are not experienced with electrical testing, contact an authorized AEG service center.