Medium
85 on ECA FELiS FL 50 HM

Your boiler has lost its wireless connection with the thermostat or remote control unit, meaning they can no longer talk to each other to manage your heating.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

BSB RF communication error

From this model's manual
Verified against the Eca Felis Fl 50 Hm installation & service manual, page 60.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check if the batteries in your room thermostat or remote controller need replacing.Ensure the wireless receiver near the boiler is not obstructed by large metal objects.Try moving the thermostat closer to the boiler to see if the signal reconnects.Reset the boiler and the wireless hub at the same time.

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