E07

Wolf Low-Voltage Power Supply Fault

Wolf oven displays E07 and interior lights or auxiliary loads may not function correctly.

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.

Possible Causes

Failed low-voltage transformer or power module, Shorted low-voltage wiring, Defective main control board power supply section, Internal short in user interface board

How to Fix / Troubleshooting

Safety: Turn off power at the breaker. Do not attempt live testing unless you are trained and equipped.

Basic checks:

Inspect the low-voltage transformer or power module (if separate from the main board) for signs of overheating or burning.
Check low-voltage harnesses (to UI, lights, sensors) for pinched or shorted wires.
Disconnect the user interface board and restore power briefly to see if E07 clears (only if service documentation supports this test).

Corrective actions:

Replace a visibly damaged power module or transformer with the correct Wolf part.
If the low-voltage section of the main control board has failed, replace the main control board.
If disconnecting the UI clears the fault, replace the user interface board.

Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board

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