remeha avanta 39c combi boiler. The non return flow valve (flow switch)that screws into the right hand hydroblock is stuck fast and will not unscrew at all - anyone know if there is a knack to freeing them. Dont want to fork out for a new hydroblock if i dont have to
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.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local