Checked all radiators no leaks above the floor and nothing through ceiling into lower ground floor, listened as able at all radiators no water leaking sounds. Have isolated the boiler by closing pipes to and from central heating and turned boiler off and pressure still dropped from 2 to 0 over afternoon.. On turning on valves for central heating supply and return little rise in pressure , with boiler switched off still . I left boiler isolated with pressure at 2 for above 6 hours. If pressure decreased with central heating supply isolated is the boiler at fault? Also shhouldnt there be an increase in pressure once the central heating supply in and out are turned on again? There was a lot of air in system should I repeat with all radiators full of water? Also no water out pipe into garden, not even a drip!! Reluctant to pull up oak wooden floorings e want to exclude everything first. Could there be a leak in heat exchanger. Would you always see water dripping, also pressure seems to fall when using hot tap and fails to rise to level before tap was run. Had a few engineers our, one thought expansion vessel, put some air in left other thought leak under floor......help advice appreciated
Baxi 105 rapid pressure loss
- Thread starter Jmuir1
- Start date
Sponsored Links
If its a he model
Sounds like the recuperator is shot, that's if you have confirmed the prv isn't passing and there no components leaking around the boiler.
Sounds like the recuperator is shot, that's if you have confirmed the prv isn't passing and there no components leaking around the boiler.
Sponsored Links
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
