e305
Moderate
Bosch · Ovens & Ranges
Communication error / door lock mechanism failure
Quick Answer
Error code E305 on your Bosch Ovens & Ranges means: Communication error / door lock mechanism failure. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Turn off the oven and allow it to cool completely.
2
Never attempt to force open a locked door during a cleaning cycle.
3
Access the oven interior and check that wires between the display board and main relay board are securely plugged in.
4
Inspect for broken wires between components.
5
Inspect the door lock motor and switch for damage or obstruction.
6
Clean any dirt or grease buildup preventing the lock from functioning.
7
If the motor or switch is damaged, replace by removing the inner door panel.
8
For voltage or power surge issues, the control board may need replacement.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Door lock motor
Door lock switch
Wiring harness
Control board
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