Pump on vaillant ecotec pro28

If the case seal is not airtight then the boiler potentially draws in its combustion air from the room which many would call AR on a supposedly room sealed boiler.
Sponsored Links
If the pump isint running how much air do you think the boiler is letting in ?
Sponsored Links
Just to keep everyone updated, turned out to be the water sensor and pump. Fitted new grunfoss pump & genuine water sensor and all is working now.

Thanks again for the pointers

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