Medium
391 on ECA FELiS FL 50 HM

Your boiler has lost its connection to the remote thermostat or controller you use to set your heating temperature.

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

Room kontrol device 1

From this model's manual
Verified against the Eca Felis Fl 50 Hm installation & service manual, page 63.
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 need replacingEnsure the wireless thermostat is not out of range or blocked by new large furnitureTurn the boiler off at the fused spur for 60 seconds to reset the connection, then turn it back on

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