Medium
51 on Alpha E-Tec S

Your boiler is temporarily unable to communicate with its wireless room thermostat, meaning it cannot receive signals to turn the 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.

What the manual says

Manufacturer manual

Climatic RF communication fault

Shared across the Alpha E-Tec range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
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 your wireless thermostat has fresh batteries installed.Ensure the thermostat is within range of the boiler and has not been moved behind thick walls or metal objects.Follow the manufacturer's manual to perform a re-pairing process between the thermostat and the boiler receiver.

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Related fault codes

50View →52View →

All 47 fault codes on the E-Tec S

Seeing a different code? Every code this model can display, in one place.

0102030405060810121516202324252931373843454760617576d1d2d4d5d6d7d8d9d10d12d14d15d16d17d18d19d22E03E12E38

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