- Joined
- 4 Feb 2007
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Have a strange situation with my central heating.
I have an S plan system that has worked well for many years. Had new boiler installed about 14 months ago, Glow Worm with options board.
Last week the boiler failed to light, but could hear the valves operating. My plumber did some prelim checks and decided that the boiler was at fault as there appeared to be no signal from the boiler to turn pump on etc.
Boiler engineer arrived and after his checks decided options board was faulty but had to wait a day for replacement. Replacement duely fitted, but boilder still wouldn't light. After further checks he tested the power connections coming into the multiblock under the boilder, 5 wires I think, anyway, a grey wire that comes from the wiring box (The box that brings the valves, boiler, pump etc together) was connected to this multiy block but for some reason was only measuring 115 volts.
He thought then that the fault was with the motorised valve. He removed this offending wire and bridged the connection to get the boiler to fire. Obviously I don't have full control of the boiler at the moment, so I am operating it manually. I have the CH valve held open at the moment so I get heat.
Does anyone have any thoughts as to why I should be getting this low voltage feed, and can the motorised valve be at fault. Would replacing the syncro motor in the valve help, although I can still hear the valve motor opening and closing.
I have an S plan system that has worked well for many years. Had new boiler installed about 14 months ago, Glow Worm with options board.
Last week the boiler failed to light, but could hear the valves operating. My plumber did some prelim checks and decided that the boiler was at fault as there appeared to be no signal from the boiler to turn pump on etc.
Boiler engineer arrived and after his checks decided options board was faulty but had to wait a day for replacement. Replacement duely fitted, but boilder still wouldn't light. After further checks he tested the power connections coming into the multiblock under the boilder, 5 wires I think, anyway, a grey wire that comes from the wiring box (The box that brings the valves, boiler, pump etc together) was connected to this multiy block but for some reason was only measuring 115 volts.
He thought then that the fault was with the motorised valve. He removed this offending wire and bridged the connection to get the boiler to fire. Obviously I don't have full control of the boiler at the moment, so I am operating it manually. I have the CH valve held open at the moment so I get heat.
Does anyone have any thoughts as to why I should be getting this low voltage feed, and can the motorised valve be at fault. Would replacing the syncro motor in the valve help, although I can still hear the valve motor opening and closing.
