ROM Error
E309
ROM-check performed at reset fails. All heating elements disabled. Error will be cancelled at start-up if next ROM-check succeeds.
Bosch Oven E309 Error Code Error Code Possible Causes
- The control module is defective.
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This information is provided for educational purposes only. Please consult the appropriate Service Mode or Technical Document for your model. Always take proper safety precautions when installing or repairing any major appliance.