E07
Bosch Oven
Severity: ModerateWhat Does This Error Mean?
E07 on a Bosch oven means there is a communication error between the main control board and a connected module — typically the display board or the function selector board. Modern Bosch ovens have multiple electronic boards that communicate with each other — when this link is disrupted, E07 appears. A power reset clears it in many cases; persistent E07 requires a technician.
Affected Models
- Bosch HBG Series
- Bosch HBA Series
- Bosch Series 6 and Series 8 Built-In Ovens
- Bosch touch-control models
- Bosch WiFi-enabled oven models
Common Causes
- Transient power fluctuation disrupted the inter-board communication — a one-time event
- Display board or function module wiring connector loose
- Main control board fault — unable to communicate with connected modules
- Display board fault — not responding to the main board
- Software error requiring a firmware reset or update
How to Fix It
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Switch the oven off at the wall for 5 minutes, then power back on.
E07 caused by a brief power fluctuation will clear with a reset. If E07 does not return during the next few uses, no further action is needed.
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If E07 returns, switch off at the wall for 30 minutes to allow a full discharge.
A longer power drain ensures all board capacitors fully discharge and the firmware restarts from a clean state.
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Note whether E07 appears at a specific time — on startup, during preheating, or mid-cook.
E07 that appears consistently at the same point suggests a specific board or connection is failing under heat stress. Tell this to the technician when booking a visit.
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If E07 persists, call Bosch service for board diagnosis.
Bosch engineers carry diagnostic tools that read error sub-codes to identify exactly which communication link has failed.
When to Call a Professional
If a power reset does not clear E07, a technician is needed. Board communication faults require specialist diagnostic tools to identify which board or connector has failed. Contact Bosch service on 0344 892 8979 (UK).
Frequently Asked Questions
Can a software update fix Bosch oven E07?
Yes — on WiFi-connected Bosch ovens, a firmware update can sometimes resolve recurring E07 faults caused by software bugs. Check the Bosch Home Connect app for any available updates for your oven model. If no update is available, a technician visit is needed.