E3
Grundig Supply Voltage Out of Range / Overvoltage Protection

Induction hob shows E3 and refuses to start or shuts down shortly after starting a zone.

Advertisements

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.

Advertisements

Possible Causes

Incorrect mains voltage (e.g. 110 V on 230 V unit or vice versa), Loose terminal block connections, Neutral not connected correctly, Power module overvoltage detection

How to Fix / Troubleshooting

Safety first: This involves mains voltage. Only qualified persons should open the terminal cover or measure voltage. Always isolate the cooker at the main breaker before removing any covers.

  • Power reset: Turn off the hob at the circuit breaker for 5 minutes, then restore power and test again.
  • Check other appliances: If lights flicker or other appliances behave oddly, there may be a supply issue. Contact an electrician or your energy provider.
  • Verify installation: Have a qualified electrician check that the Grundig hob is wired according to the wiring diagram on the rating plate (correct phase, neutral, and earth connections).

If E3 persists with correct supply voltage, the power module may be defective and should be tested and replaced by a service technician.

Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Power Module / Main Induction Inverter Board
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements