Medium
51 on Alpha Intec2 25 28XE

Your boiler is struggling to talk to your wireless thermostat, which means it doesn't know when to turn your heating on or off.

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.

Technical description

Climatic RF communication fault. Error between communication of the Climatic transmitter and boiler receiver

DIY fix possible

Replace the batteries in your wireless room thermostat unit.Power cycle the boiler by switching it off at the fused spur for 60 seconds and turning it back on.Attempt to re-pair the thermostat to the receiver unit using the manual/sync button.

Find a Gas Safe engineer
Search the official register →

Related guides you might find useful

Boiler won't turn on — 9-step checklist

Work through these before the call-out.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →