Medium
E31 on Alpha CB24

Your boiler has lost its connection with the digital thermostat or timer controller, meaning it cannot receive instructions to heat your home or water.

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.

Technical description

Remote control communication fault

DIY fix possible

Switch off the power to the boiler at the fused spur for 60 secondsTurn the power back on and see if the connection is re-establishedCheck that the batteries in your remote thermostat controller are fresh and fully charged

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