Worcester Bosch · Greenstar Boilers
The blue on/off indicator light is not illuminated, and the boiler appears to be off or not receiving a signal to operate, even if mains power is seemingly present.
Click steps to track your progress.
Switch off the appliance at the master switch, wait a few seconds, then switch it back on.
Check the programmer settings to ensure it is programmed to call for heat or hot water.
Verify that your property has a continuous power supply and that other electrical items are working.