Discuss Honeywell ST9400C - Have to put HW & CH on to get hot water in the Central Heating Forum area at PlumbersForums.net
An electrician installed it, since he fitted it, it hasn't been right (That was a couple of years ago, I am only finding about it now) perhaps the wiring is in the wrong ports? What do you think?
I have that feeling, I will get some one to make sure it is wired up properly - Thank you for your help!Could be not wired right at the timer eg both into one side
Reply to Honeywell ST9400C - Have to put HW & CH on to get hot water in the Central Heating Forum area at PlumbersForums.net
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