Hello all, this seems an excellent forum - I've been through lots of threads to try to find an answer to my problem with no success so I hope someone can help.
My Worcester 28CDi RSF combi boiler stopped working this week. I noticed the pressure had dropped to 0 (but the power to the controls was fine). I turned the unit off at the wall, then refilled it with the key to the correct level (1). When I switched it on again, the controls were dead.
So here my troubleshooting so far:
Fuses on mains board tested: fine.
Fuses on circuit board tested: fine.
Tested voltage to power supply into the boiler and it's 4V - strange because it's low, rather than being nil.
The switch at the wall is just a switch - no plug, no extractable fuse, just the wire going into the unit. So I tried to take the whole switch unit off the wall but it's been cemented in by a tiler!
Can anyone please suggest what I should do next? It seems that the problem is not the boiler but the elec supply to it, which has somehow been damaged by me turning the switch off then on again. Has anyone encountered this problem before? Do I need to tunnel into the wall to remove and perhaps replace the switch unit?
Any advice v much appreciated.
My Worcester 28CDi RSF combi boiler stopped working this week. I noticed the pressure had dropped to 0 (but the power to the controls was fine). I turned the unit off at the wall, then refilled it with the key to the correct level (1). When I switched it on again, the controls were dead.
So here my troubleshooting so far:
Fuses on mains board tested: fine.
Fuses on circuit board tested: fine.
Tested voltage to power supply into the boiler and it's 4V - strange because it's low, rather than being nil.
The switch at the wall is just a switch - no plug, no extractable fuse, just the wire going into the unit. So I tried to take the whole switch unit off the wall but it's been cemented in by a tiler!
Can anyone please suggest what I should do next? It seems that the problem is not the boiler but the elec supply to it, which has somehow been damaged by me turning the switch off then on again. Has anyone encountered this problem before? Do I need to tunnel into the wall to remove and perhaps replace the switch unit?
Any advice v much appreciated.