Er04
Teka Power Relay / Heating Element Fault

Ceramic hob shows Er04 and one or more zones do not heat.

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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

Open-circuit radiant element, Burnt relay contacts on power board, Loose wiring to element, Overheat cut-out tripped

How to Fix / Troubleshooting

Safety first: Disconnect from mains before removing the hob from the worktop. Heating elements can remain hot for a long time.

  • Visual inspection: Remove the bottom cover and inspect the radiant elements for visible breaks or burn marks.
  • Check wiring: Ensure all spade connectors to the affected element and relays are tight and not discolored.
  • Continuity test (advanced): Use a multimeter to check continuity of the element. An open reading indicates a failed element.

When to call a technician: Replacing elements or power boards involves mains wiring and should be done by a qualified technician if you are not experienced.

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Repair Difficulty

Hard 4/5

Required Part

Radiant Heating Element
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