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Boiler keeps pressurising and switching off. Also noticed the
Boiler keeps pressurising and switching off. Also noticed the thermostats gauge is below zero and into the pressure gauge reading. Any ideas. Thanks.… read more
Brian
Brian
Plumber
596 satisfied customers
Hi, we just had our gas boiler serviced and when the engineer was leaving he noticed that
Hi, we just had our gas boiler serviced and when the engineer was leaving he noticed that the pressure on the expansion vessel was v low (<0.5bar). He tapped the vessel a few times and said we need… read more
Andrew Smith
Andrew Smith
Engineer
Vocational, Technical or Trade Scho
4,021 satisfied customers
Baxi 100he plus combi. System losing pressure. How do I check
Baxi 100he plus combi. System losing pressure. How do I check the expansion vessel? Regards Mike… read more
Brian
Brian
Plumber
596 satisfied customers
the pressure on my boiler was going up form 1.8 bars to 3.2
the pressure on my boiler was going up form 1.8 bars to 3.2 bars before going down to low pressure and shutting down i called out the gas board engineer who replaced the expansion tank now the boiler … read more
Andrew Smith
Andrew Smith
Engineer
Vocational, Technical or Trade Scho
4,021 satisfied customers
I have had a Stelflow unvented cylinder tank with a Zilmet
I have had a Stelflow unvented cylinder tank with a Zilmet 18l exterior expansion vessel fitted in the top floor of our 3 floor house. When the hot taps are turned on there is a delay until the hot wa… read more
Brian
Brian
Plumber
596 satisfied customers
Hi, I have a Vaillant Ecotec Plus combi boiler. The pressure
Hi, I have a Vaillant Ecotec Plus combi boiler. The pressure keeps reducing within a couple of hours. I have renewed the Pressure Release Valve and repressurized the Expansion Vessel. But the pressure… read more
Marc
Marc
Master plumber, oil burner technician
Vocational, Technical or Trade Scho
1,710 satisfied customers
Ariston MicroGenus 27MFFI - System over pressurising when operating
Ariston MicroGenus 27MFFI - System over pressurising when operating heating circuit (3.5 bar), loosing water pressure following cooling - down to about 0.7bar. No obviuos leaks in central heating syst… read more
SteveWidd1
SteveWidd1
Owner
3 satisfied customers
Is it worth replacing the expansion and feed tank in the attic
Is it worth replacing the expansion and feed tank in the attic with an expansion cylinder attached to the heating water circuit of a vented "regular" boiler system (as advised by a plumber whom I have… read more
Rick Ridley
Rick Ridley
Retired, well Semi,
30 years on the tools
2,707 satisfied customers
Combi Boiler. When cold, expansion vessel pressure 1.5 bars.
Combi Boiler. When cold, expansion vessel pressure 1.5 bars. Water pressure 1.5 Bars. When central heating on, water pressure rises to 3 bars and water is expelled from relief valve. Expansion vessel … read more
Andrew Smith
Andrew Smith
Engineer
Vocational, Technical or Trade Scho
4,021 satisfied customers
Hi - we have a Ferroli Optimax HE 18S and keep getting an error
Hi - we have a Ferroli Optimax HE 18S and keep getting an error message (F37) and now need to top up the pressure most days to 1.5bar - boiler operates at 2.7 bar when heating on. We've had the expans… read more
Brian
Brian
Plumber
596 satisfied customers
With a Watts industries pressure vessel in the system and the
With a Watts industries pressure vessel in the system and the only pressure gauge that can be seen (just above it) reading zero, does this mean the vessel should be charged to 4 bar iaw the label on t… read more
Rick Ridley
Rick Ridley
Retired, well Semi,
30 years on the tools
2,707 satisfied customers
I have a Keston system central heating boiler (i.e. with
I have a Keston 'system' central heating boiler (i.e. with expansion vessel?. What psi or bar should the expansion vessel be pre-charged to?… read more
Andrew Smith
Andrew Smith
Engineer
Vocational, Technical or Trade Scho
4,021 satisfied customers
Hi got vokera option 24 and yellow light appears on saying
Hi got vokera option 24 and yellow light appears on saying its needing refilled with water when the guage is not dropping. the boiler stops working when it does this. also had the expansion vessel rep… read more
Rick Ridley
Rick Ridley
Retired, well Semi,
30 years on the tools
2,707 satisfied customers
worcester combi 17/19 poblem with water presure topped up water
worcester combi 17/19 poblem with water presure topped up water to 1 bar within 10 min i could see my gauge building pressure i then released the pressure back down to 1 bar i thaught my valve must be… read more
Andrew Smith
Andrew Smith
Engineer
Vocational, Technical or Trade Scho
4,021 satisfied customers
My Ravenheat CSI 85 T is not reaching maximum heat output before
My Ravenheat CSI 85 T is not reaching maximum heat output before the system pressure blows the relief valve at 2.5 bar. I suspect some kind of problem in the expansion vessel is the cause. If this is … read more
Rick Ridley
Rick Ridley
Retired, well Semi,
30 years on the tools
2,707 satisfied customers
i have vokera unica boiler when i open the filling loop and
i have vokera unica boiler when i open the filling loop and raise pressure to 1.5 bar the pressure falls down again to 0.8 bar (this takes approx 15 mins) then stops at 0.8 bar you can do this many ti… read more
Andrew Smith
Andrew Smith
Engineer
Vocational, Technical or Trade Scho
4,021 satisfied customers
Vokera Excell 80sp stayes on intermittantly when heating setting
Vokera Excell 80sp stayes on intermittantly when heating setting selected (it works fine on water only). It seems to follow a pattern of switching on from cold and only firing up when max setting sele… read more
Andrew Smith
Andrew Smith
Engineer
Vocational, Technical or Trade Scho
4,021 satisfied customers
I have a worcester bosch 28cdi RSF boiler. I pressurise the
I have a worcester bosch 28cdi RSF boiler. I pressurise the system to 0.8 bar and when I run the system the pressure increases to such an extent that the water is forced out of the pressure relief val… read more
Rick Ridley
Rick Ridley
Retired, well Semi,
30 years on the tools
2,707 satisfied customers
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