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thanks

The make is sullus or something like that

I replaced my central heating in August last year. Since then, the motorised valve has been changed three times. Is there a problem with the Installation. The system works perfectly well when the motorised valve is working properly. The lever has broken and no one has been playing around with it.

When you turn the central heating and the Hot water on, the central heating works perfectly. However, the valve in the Hot water does not open. There is no signal I understand that is being sent to the Boiler. If we use the manual overide, we found out that this is having an impact on the...

yes we have. It is also a 2 port valve. Do you think it is caused by the room programmer

The valve seems to be playing up. We have changed this twice in the last three months. Can I just leave it on manual rather than I keep changing it. Is there a risk of overheating ?

What I need to know is if putting this on manual can have an impact on the central heating system

What are the risks of using the manual lever on motorised valve continuously.