E07
Wolf
Inverter Board Failure (Inverter-Based Models)
Microwave displays E07 and stops heating; fan and light may still operate.
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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 inverter power board, Loose connections between inverter and magnetron, Overcurrent protection triggered on inverter, Internal short on inverter components
How to Fix / Troubleshooting
Safety first: Unplug the microwave. Inverter-based high-voltage systems operate at very high frequency and voltage and are extremely dangerous.
Basic checks:
- Confirm that the unit is not in Demo mode and that you are using appropriate cookware.
- Try a power reset (unplug 5 minutes, then reconnect). If E07 reappears immediately when starting a cook cycle, the inverter is likely faulty.
Service-only repair:
- Inverter boards are not user-serviceable. They require specialized testing and must be replaced as a complete assembly.
- Contact Wolf service to replace the inverter board and inspect the magnetron and wiring for related damage.
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Repair Difficulty
Professional Required
5/5
Required Part
Inverter Power Board
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