Well just wanted to say thanks to Gasguru! you've just saved me £200 +.
We were having the same problem with our GW Compact 100E, and an engineer said it was a new PCB we needed! (after not giving a proper diagnosis!) so I thought id have a quick look for a PCB on the net, and came across this website. in the end, after eliminating a few parts, it turns out the pin in the DHW switch was just sticking!
So after all that, what was estimated at a £200+ job cost all of 2 squirts of WD40! BONUS!!
Thanks again!
We were having the same problem with our GW Compact 100E, and an engineer said it was a new PCB we needed! (after not giving a proper diagnosis!) so I thought id have a quick look for a PCB on the net, and came across this website. in the end, after eliminating a few parts, it turns out the pin in the DHW switch was just sticking!
So after all that, what was estimated at a £200+ job cost all of 2 squirts of WD40! BONUS!!
Thanks again!