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.

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 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

Find a Gas Safe engineer
Search the official register →

Related guides you might find useful