Discuss No central heating, suspect 3 port valve in the Plumbing Jobs | The Job-board area at PlumbersForums.net
Are you talking about CH by itself or CH with HW?Customer has no central heating, hot water fine. When central heating selected with stat turned up 3 port valve does not motor to heating. No volts on orange wire, no volts on grey wire, 240 volts on white wire. My logic circuit says 3 port valve faulty.
Sorry to repeat the question, but are you talking about CH on, alone, or CH and HW both running at the same time?Thanks for the responses. The boiler and pump work when hot water selected, when central heating selected no boiler no pump and central heating pipes cold, 3 port valve stays on HW.
In that case you need to find why there is not 240V on the grey wire.CH alone.
Reply to No central heating, suspect 3 port valve in the Plumbing Jobs | The Job-board area at PlumbersForums.net
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