Have a Worcester Bosch oil combi boiler with a slow pressure drop (drops from 1.5 bar to 1 bar over 2 months). Boiler feeds about 12 rads. Property is a bungalow. Have checked multiple times for leaks can't see any either by rads or under floor. Pipework is clipped to joist no screed or concrete/cement embedded pipes (all pipework). Zero sign of pipe leaks . I top up with inhibitor and leak sealer regularly. Only thing I can think of is insufficient inhibitor (fernox).
Slow pressure drop on worcester bosch boiler
- Thread starter TryAgain1
- Start date
-
- Tags
- boiler pressure drop radiator
- Joined
- 11 Apr 2022
- Messages
- 1,007
- Reaction score
- 221
- Country
Have you checked for a dribble from the PRV?
The PRV inside the boiler?
- Joined
- 11 Apr 2022
- Messages
- 1,007
- Reaction score
- 221
- Country
Check the pipe that goes to the outside.
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
