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Boiler Pressure Constantly Rising - NOW NOT WORKING!
Astec
Posts: 515 Forumite
Hi All,
Recently moved into our house and having isues with the gas boiler (Ravenheat combi, approx 4 years old). Had some radiators replaced and had a constant pressure loss, found a leak under the floorboards and had it fixed. Great!
However now we have constant pressure rising! Set it to 1 bar, within 2 days it's upto 2.5 bar. Use the release valve to drop it to 1 and it goes up again! Any ideas on what the issue could be?
Recently moved into our house and having isues with the gas boiler (Ravenheat combi, approx 4 years old). Had some radiators replaced and had a constant pressure loss, found a leak under the floorboards and had it fixed. Great!
However now we have constant pressure rising! Set it to 1 bar, within 2 days it's upto 2.5 bar. Use the release valve to drop it to 1 and it goes up again! Any ideas on what the issue could be?
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Comments
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Is the valve that you use to top it fully closed?I used to be indecisive but now I am not sure.0
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as the above post, check the valve is fully closed and check the filling loop not passing/0
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The filling loop should be disconnected after topping up. This is to stop the often black water in the central heating system getting back into the drinking water side. On filling loop, either valve not fully closed or leaking.0
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Tap is definitely fully closed, not sure on filling loop. Do boilers tend to have automatic pressure shut offs, ie will it release pressure once it reaches a certain point?0
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As the others have indicated, the most common thing is the filling loop letting by.
Remove the flexible pipe and see if any water is coming out of the cold mains valve end.
If this is all ok, the only other way the system could constantly increase in pressure is by having a pin hole between the HW circuit and the heating circuit in the plate HE.0 -
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Ok, it's just got worse :-(
Noticed that hot water not working. Had a look and no flame, switched on and there is no spark to ignite the boiler (was visible before). Water pressure still rises. Tried resetting (little button on cointrols) and nothing happens, tried switching off at mains for a bit and still nothing.
Could there be a some kind of fuse on the spark that's tripped? Boiler defo has power and gas supply is fine (hob works).0
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