what boiler do you have
Danfoss thermo valve problem
- Thread starter Bezste
- Start date
Sponsored Links
H
Hot&Cold
best call a central heating technician,anyone can call themselves a plumber
maybe try repeatedly tapping the problem radiator pin while all other radiators are turned off,no one knows how well that radiator is plumbed,every system is bespoke. Is the opposite valve fully turned on
should be an easy fix
Sponsored Links
- Joined
- 22 Jan 2007
- Messages
- 8,310
- Reaction score
- 4,131
- Country
Might have a mixture of issues. The pin that was only moving in 1mm should have a little more travel than that. I'd keep hitting it (dont pull as youll only pull the pin out and make a leak) keep chapping the pin head on with something hard like a spanner or pin hammer (or softly with a big hammer) quite fast for a minute, they usually just pop back to normal position.
Either way after that, turn the thermostats off on all the hot radiators and see if yo get much heat to the cold ones
Either way after that, turn the thermostats off on all the hot radiators and see if yo get much heat to the cold ones
Thank you all for your help. Tried all suggestions without any luck so called in local heating engineer who spent an hour trying all those suggestions too.
Conclusion is blocked pipes so having some pipe work replaced. Half a day’s work, apparently. Oh well, at least I learnt a few things that may come in handy in the future. Cheers.
Conclusion is blocked pipes so having some pipe work replaced. Half a day’s work, apparently. Oh well, at least I learnt a few things that may come in handy in the future. Cheers.
Do you get hot water OK from the taps? If so maybe the 3-port valve in the boiler is stuck.
Edit - just noticed #15. If some of the rads get get hot it seems to rule out 3-port valve. Back to blockage.
Last edited:
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
