Er47
Gaggenau Zone Power Module Fault

Induction cooktop shows Er47 on one zone, zone does 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

Defective power module for that zone, Faulty current sensor, Internal short on IGBT, Wiring issue between coil and module

How to Fix / Troubleshooting

Safety: Disconnect power at the breaker and wait several minutes before opening the cooktop. High voltages and stored energy are present.

  • Reset: Try a power reset first. If Er47 returns on the same zone, proceed with internal checks.
  • Inspect wiring (technician): Remove the cooktop and bottom cover. Inspect the zone power module and coil wiring for burns or loose connectors.
  • Compare zones: Swap coil connectors between a working zone and the Er47 zone (if design allows) to see if the error follows the module or the coil.
  • Replace module: If the error stays with the module, replace the induction power module for that zone group.
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Repair Difficulty

Professional Required 5/5

Required Part

Induction Power Module
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