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Ok do you suggest I still turn them all off alongside the bedroom rads and try this way?

Hi I thought because they didnt have the head with the numbers on that they didn’t need to be turned of. Will do it again with all turned off this time. Thank you

Hi Mister Banks, I attempted this today and still the noise occurred. I did however leave the bathroom ones open. One thing I did research is that some my TRVs are on the return pipe instead of the flow? But seeing as switching of the TRVs never fixed the problem I’m not sure how relevant that is…

Ok thank you I will attempt to do this tomorrow.

Hi This is awaiting to be replaced by the plumber actually as it packed in and started making grinding noises when id put the hot water on. Plumber has told me it has nothing to do with my heating and is only for the hot water from taps and showers to heat up quicker. Its currently not functional.

hmmmm I understand just completely at a loss.

Thanks John, Do you think its still worth me turning the TRVs all off and then turning back on?

Hi John I just tried this. I kept the boiler off for 10 minutes and my heatmiser app had all the zones (including upstairs heating) as offline. I pushed the valve open and I then restarted the boiler. No noise occurred. However, I have to switch on the central heating through my app and...

Sorry john its a vailiant ecotec plus 637

Hi John, Should I be physically switching the boiler off from the mains and then switching it back on?

Hi John, The moment I even moved the lever the noise just started, I wasn’t even able to get to locking it in position or switching the upstairs heating on. What did I notice is that once the noise happened, I put the central heating on 30 seconds later (the lever was back in the original...

Hi john sorry for being dumb. Yes arrow is pointing up and the radiators are on the upstairs floor. Iv also attached a wider picture of my system for your reference

Hi No noise comes when the hot water is on and nor does it happen when the UFH. I mean I describe it as a foghorn but its hard to tell its like a rattle more than anything else. Here is the video: This noise will only ever come happen when I put my upstairs heating on for 5-10 seconds and...

Hi John Here is some clearer pictures.

I’m sorry I can’t quite understand and can’t see any arrows? All I know is the highest motorised valve is for the upstairs heating.

Sorry john I don’t quite understand. Iv attached a picture of one of the trvs and the actual motorised valve on my boiler

Do you mean the motorised valve near my boiler or the TRV on my radiator?

The top one is the motorised valve for the upstairs heating…

Hi DP it literally makes a huge foghorn noise which then rattles the floorboards the video is here: This now occurs each time I put it on regardless of UFH being on whereas last year it wouldn’t make the noise when UFH was on

Hi I changed it to 0.1 and it still made the noise. What do you mean about pointing in the right direction please?