Worcester Bosch · Boilers
The contacts of the gas valve have been interrupted. This means the gas valve is not able to open or close correctly, preventing gas flow to the burner.
Click steps to track your progress.
Power cycle the boiler by turning off the main power for 30 seconds, then restart it.
Visually inspect the wiring connections to the gas valve to ensure they are secure.
Contact a Gas Safe registered engineer to diagnose and repair the gas valve or its connections, as this is a critical gas safety issue.