Low
226 on Worcester Bosch Hideaway 90

Your boiler has recorded that a technician's diagnostic tool was recently plugged in to check the system's error history.

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.

What the manual says

Manufacturer manual

Service tool has been connected in the blocking error history menu

Shared across the 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

Press the reset button once to clear the displayMonitor the boiler to see if the code returns without a tool being connectedEnsure the service tool has been fully disconnected from the diagnostic port

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