Hi i hope someone can help figure this out, The boiler works for hot water but when a call for heat for the central heating nothing. Checked the room stat by putting link back in, I checked the clock has 240v. I checked there is 240 between blue and orange wire on x1a and x1b. The pump runs so that's ok, i took out the diverter head and that moves out under power. Has anyone come across this before as I'm thinking pcb fault.
halstead ace he
- Thread starter bambibasher
- Start date
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or faulty programmer
there's no programmer except the mechanical clock on the boiler. i checked and that's got 240v, I linked out the digi stat.
room stat as these tend not be getting demand request
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