F13
Belling
Communication Fault Between Control Boards
Oven display shows communication error; some functions may be disabled.
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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
Faulty communication cable between main PCB and display PCB, Failed display PCB, Failed main control PCB, Electrical noise or surge damage
How to Fix / Troubleshooting
Safety: Isolate the oven from mains power before accessing electronics.
- Power cycle: Turn off power for 10 minutes to allow capacitors to discharge, then restore power and check if the error clears.
- Inspect interconnect cables: Remove the control panel and locate the communication harness (often a multi-core or ribbon cable) between the main PCB and display PCB. Check for damage, pinched sections, or loose plugs.
- Reseat connectors: Disconnect and reconnect the cable at both ends to ensure good contact.
- Check for board damage: Inspect both PCBs for signs of burning, corrosion, or water ingress. If one board is visibly damaged, replace it.
- Board substitution: If available, substituting a known-good display or main PCB can confirm which board is faulty. This is typically done by a professional technician.
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Repair Difficulty
Professional Required
5/5
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