E12
Hoover Heating Relay / Triac Control Error

Hoover washer displays E12, often during heating or wash phase.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Stuck heater relay on PCB, Shorted heating element, PCB track damage in heater circuit, Wiring short to chassis

How to Fix / Troubleshooting

Safety first: Unplug the washer. Heating circuits carry mains voltage and can be hazardous.

  • 1. Visual inspection of heater wiring: Access the heater at the rear or front (depending on model). Check for melted connectors or insulation damage.
  • 2. Test heater for earth leakage: With a multimeter, check resistance between each heater terminal and earth (chassis). Any low resistance indicates a leak and the heater must be replaced.
  • 3. Inspect PCB heater relay area: If accessible, look for burnt spots or welded relay contacts. Do not attempt complex board repair unless qualified.
  • 4. Replace heater if faulty: Fit a Hoover-compatible heating element, ensuring the seal is correctly seated.
  • 5. Persistent E12: Likely indicates a defective PCB heater relay or triac. Replace the main control board via a service technician.
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Repair Difficulty

Professional Required 5/5

Required Part

Heating Element or Main Control Board
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