rF
Eurotronic
Radio Frequency Communication Fault
Display shows 'rF' or radio symbol with error and thermostat cannot reach remote sensors or TRVs.
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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
Internal RF antenna damage, Shielding by metal radiator covers, Incorrect RF channel configuration, Firmware bug in RF stack
How to Fix / Troubleshooting
Safety: No high voltage work is needed.
- Reposition device: Avoid installing the thermostat or TRV behind metal covers, in metal cabinets, or directly next to large appliances.
- Check RF settings: In the advanced menu (if available), verify that the RF channel and network ID match the gateway or other Eurotronic devices.
- Test with another device: Try pairing another Eurotronic TRV or sensor to the same thermostat/gateway to determine if the issue is specific to one device.
- Firmware update: Update firmware to the latest version to resolve known RF issues.
- Replace device: If RF errors persist and other devices work normally, replace the thermostat or TRV with a new unit.
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Repair Difficulty
Medium
3/5
Required Part
RF Antenna / RF Module
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