E20
Caple
Control PCB Communication Failure
Caple oven shows a generic communication or electronics error; multiple functions fail simultaneously.
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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 main PCB, Failed communication between UI and power board, Corrupted firmware, Loose inter-board connectors
How to Fix / Troubleshooting
Safety first: Disconnect mains power before accessing internal electronics.
- Power cycle: Turn off power at the breaker for 10–15 minutes to fully discharge capacitors, then restore power and test.
- Check connectors: Remove the control panel and rear cover to access the main and UI boards. Reseat all multi-pin connectors and ribbon cables.
- Inspect for damage: Look for burnt components, cracked PCBs, or water ingress. If present, the affected board must be replaced.
- Firmware update: Some newer Caple models may support firmware updates via service tools; this must be done by an authorised service centre.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control PCB
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