how can i fix my worcester bosch gas boiler?

Some of the Bosch boilers are sensitive to power interruptions.
Try turning the main power off at the switch (switch-fuse), not on the front of the boiler, leave it off for a few seconds then switch back on again.
You may have to press the boiler's on/off power switch to switch it back on. When it is on the main indicator light will be on. There is a second smaller indicator with a flame symbol next to it which indicates when the gas burner is operating.
If the main light continue to flash, expecially after presseing the reset buttons, then there is a fault.

Paul
January 2009

Hello,

I ma not a boiler engineer, just someone who had the same light combination on a worcester greenstar 28i junior. The red light is the reset button and when I pressed that (might need to hold for a second before let let go) everything started back up again normally.
Mine did this twice and is currently fine but if happens again in near future I will be calling an engineer..

Good luck!

Sarah
January 2009