What the appliance detected
Detected condition
The appliance detected an electrical connection that does not match the required installation configuration.
What may contribute
Possible causes
- The appliance may have been wired incorrectly during installation or service.
- A connection may not match the model circuit diagram or local requirements.
- A persistent code after verified installation can require Bosch service diagnosis.
Start conservatively
Safe preliminary checks
Work in order and stop whenever a step is not supported by the documentation for your model.
Record E9011 and installation context
- Photograph the display and note whether the range was recently installed, moved, or serviced.
- Locate the model number and installation manual for the electrician or installer.
Stop using the appliance
- Cancel cooking and leave the range off until the electrical connection is checked.
- If wiring is hot, damaged, sparking, or smells burned, keep clear and seek urgent qualified help.
Have the connection verified professionally
- Bosch says the appliance connection should match the circuit diagram.
- Use a qualified electrician or installer for terminal, conductor, breaker, voltage, and circuit-diagram checks.
Actions not recommended
- Do not open the terminal block, junction box, breaker panel, or appliance cabinet unless qualified.
- Do not move conductors, jump terminals, or perform live measurements.
- Do not keep powering the range to see whether the fault clears.
When to stop and request service
- A qualified electrician or installer needs to verify or correct the connection.
- The code remains after supply and installation are confirmed correct.
- There is damaged wiring, overheating, sparking, burning odor, or repeated breaker trip.
Documented source
Official information reviewed
Our summary is based on manufacturer support material and stays within the limits of that material.
Bosch Owner Support
Bosch Slide-in Range Error CodesBosch Owner Support
Bosch Error Codes
Source reviewed by Appliance Help HQ: September 23, 2026.
Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by Bosch.
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