F10
Ferroli
Communication Error with Remote Control / Bus
Ferroli furnace shows F10; may not respond to external controls.
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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
Incorrect wiring of Ferroli remote controller bus, Faulty remote controller, Reversed polarity on low-voltage bus
How to Fix / Troubleshooting
Safety: Isolate power before working on low-voltage control wiring.
Steps:
- Check bus wiring: Verify that the two-wire bus from the Ferroli controller is connected to the correct terminals and with correct polarity if required.
- Inspect cable: Look for damage, joints, or extensions that may cause poor communication.
- Test without controller: Temporarily disconnect the remote controller and configure the furnace for basic operation (if supported) to see if F10 clears.
Professional help: Complex bus communication issues should be handled by a technician familiar with Ferroli control systems.
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Repair Difficulty
Medium
3/5
Required Part
Ferroli Remote Controller / Bus Interface
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