Honeywell Valve hot and buzzing and vibrating pipework

[danceindark49]

Hi everyone

I hope someone can help me. I've had a new boiler and hot water tank under the Warmfront Scheme with a Honeywell 4073A motorised valve upstairs in my airing cupboard. This valve is hot and buzzing and vibrating the copper pipe it's attached to all the time - even when the hot water and heating are switched off at the time clock - and it's driving me insane. The only way I can get it to stop buzzing and vibrating is to switch off the power to the whole system. When I do switch the power off the Honeywell valve clicks and goes quiet. Then when I switch the power back on it stays quiet until the heating or hot water comes on again. Please can anyone tell me if this is normal? I had Honeywell valves on my old system and I didn't have this problem with them so I'm wondering if the new valve could be faulty.

Thanks very much.
Lin

 

[secret squirrel]

No, its not right. Are you sure that it is the valve and not the pump?

My advice is get the warm front team back and explain your problem. I'd check to make it is the valve, if it is open permanently then its open and nothing in it should move which makes me think it is the pump humming.

Even if it is the pump still get them back to have a look at the issue for you.

 

[danceindark49]

Thank you. I don't think it's the pump as there are lights on it that come on when it's on. I've already had warm front engineer out to it before I worked out it was the valve buzzing and vibrating but I don't think he really understood what the problem was. I didn't want to call them out again if the valve was supposed to buzz all the time but now I know that's not normal I'll get them back again.

Thanks again.
Lin

 

[doitmyself]

Can you post a pic?

 

[Silverback]

Hi i fitted a 3port valve and that started buzzing so i know about it its got to do with the electrics the valve is working but is permantly on thats why its buzzing some times the manufacturer switches the colour of the wires round so ive been told and thats why get them to have a look

 

[danceindark49]

Hi everyone

It took me ages to get thru to warm front again - it seems the scheme has been discontinued so maybe the workers threatened with redundancy can't be bothered to answer the phone any more - but I finally got an engineer out today and he was a star. He thanked me for diagnosing the problem (I gave you guys all the credit for that) whipped out the Honeywell valve and replaced it with one that works properly. No more buzzing or vibrating pipework when the system should be asleep and the valve seems to be cooling down nicely. Result!

Thank you so much for your help.
Lin

 

[secret squirrel]

Woo hoo, result

 

[doitmyself]

He ... whipped out the Honeywell valve and replaced it with one that works properly.

Did he say what was wrong with the valve?

There has been mention, on some forums, of a batch of faulty Honeywell valves causing banging when they open and close.