Low
FD on Worcester Bosch Heatslave

Your boiler has gone into a temporary lockout because the reset button was pressed accidentally or for too long.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Reset button pressed by mistake – press reset button again.

DIY fix possible

Press and release the reset button once more to clear the fault.Wait for the boiler to complete its startup sequence.Check if the display returns to its normal operating temperature.

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