Low
226 on Worcester Bosch 24 RSF

Your boiler has recorded that a professional tester or diagnostic tool was plugged into the control system while it was in a specific error history mode.

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

Service tool has been connected in the blocking error history menu

DIY fix possible

Press and hold the reset button for five secondsTurn the power to the boiler off and back on at the fused spur switchIf the code persists, contact a Gas Safe engineer to clear the internal service memory

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