Washer displays E23 and may trip the household fuse or not start

Safety first: Disconnect mains power and do not attempt to run the washer until the fault is resolved. Risk of electric shock.

• 1. Visual inspection: Remove the rear panel and inspect the heater terminals and wiring for signs of burning, moisture, or contact with the metal chassis.
• 2. Insulation test (advanced): Using an insulation tester (megohmmeter), check resistance between each heater terminal and earth. Low resistance indicates leakage and a failed heater.
• 3. Dry moisture: If moisture is present due to a leak, identify and repair the leak (e.g. heater gasket, tub crack) and allow components to dry thoroughly.
• 4. Replace heater: If the heater shows earth leakage, replace the V-ZUG heating element and gasket.
• 5. Check wiring: Ensure no wires are pinched or rubbing against sharp metal edges. Repair or replace damaged harness sections.
• 6. Technician service: If E23 persists with a new heater and sound wiring, the power module's leakage detection circuit may be faulty and should be replaced by a professional.