Hi all
i suppose the first question is am I allowed to do this? It’s an unvented system boiler with a red expansion vessel and 3, 2 port motorised valves, one for hot water, one for down stairs heating and one for upstairs heating.
I’ve had a cascade of problems, starting with a boiler igniter...
I’m having a problem with my single port Honeywell motorised valve on the hot water circuit. Everything was working fine until problems began this week with a failure of the spark generator in the boiler. Had this repaired now the hot water motorised valve won’t work. I’ve changed the syncron...