E16
Bush
Communication Error Between Main PCB and User Interface
Bush oven shows E16 and will not start; may indicate internal communication error between boards.
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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
Loose harness between UI and main PCB, Damaged communication cable, Firmware mismatch after board replacement, Faulty main PCB or UI PCB
How to Fix / Troubleshooting
Safety first: Isolate the oven from mains before accessing control components.
- Power cycle: Turn off power for 10 minutes, then restore. Sometimes E16 clears if caused by a transient glitch.
- Check harness connections: Remove the control panel and verify that all multi-pin connectors between the UI and main PCB are fully seated and free of corrosion.
- Inspect cables: Look for pinched or damaged ribbon cables. Replace any suspect cables.
- Board compatibility: If a board was recently replaced, confirm that the correct Bush part number was used and that any required configuration or programming was performed.
- Replace faulty board: If wiring is sound and E16 persists, either the main PCB or UI PCB may be defective. Replacement is typically a job for a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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