Low
226 on Worcester Bosch 35 RSF

Your boiler is displaying a status message indicating that a professional diagnostic tool was recently plugged into the system's internal memory menu.

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

From this model's manual
Verified against the Worcester Bosch 35 Rsf installation & service 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 and hold the 'Reset' button for five secondsSwitch the boiler power off and back on at the fused spur switchMonitor the display to see if the code clears and returns to the temperature display

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