Medium
122 on ECA FELiS FL 50 HM

Your boiler's secondary heating zone is not reaching the required temperature, meaning some of your radiators or underfloor heating may stay cold.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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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

Heating circuit 2 flow water temperature not reached

From this model's manual
Verified against the Eca Felis Fl 50 Hm installation & service manual, page 61.
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 that all radiator valves in the second heating zone are fully openEnsure the zone valves or thermostats for that area are set to call for heatCheck if the boiler pressure is between 1.0 and 1.5 bar and top up if necessary

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