E05

Wolf Relay Board or Power Board Failure

Wolf oven displays E05 and will not heat in bake or broil modes.

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 relay board supplying power to elements, Burned relay contacts, Loose power connections at relay board, Internal power supply fault on control board

How to Fix / Troubleshooting

Safety: Turn off power at the breaker. High voltage is present at the relay board; do not work live.

Inspection:

Access the relay/power board from the rear or top of the oven (varies by Wolf model).
Inspect for burnt spots, cracked solder joints, or melted terminals on the board.
Check that all spade connectors and harness plugs are fully seated and not heat-damaged.
With power still OFF, verify continuity across the relays when manually actuated (if service manual allows) or check coil resistance.

Corrective actions:

If any relay is visibly burned or does not switch, replace the relay/power board with a Wolf-approved part.
Ensure all wiring is reconnected exactly as originally routed; take photos before removal.
Restore power and test bake and broil. If E05 remains, the main control board may also require replacement.

Repair Difficulty

Hard 4/5

Required Part

Relay / Power Board

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