How to mend ... Pressure Bar 4

baxi 105he?

pressure rises above 3 bar when heating on. what could cause this

Vaillant Ecotec Pro with F22 fault?

Vaillant Ecotec Pro with F22 fault - I know this means it needs topping up with water as the pressure is .2 ba... [Read more]

Main Combi 24 HE won't light on resetting?

Can anyone point me in the right direction? My Main Combi 24HE has 'Flame Failure' lit. On resetting, the boil... [Read more]

Ferroli Modena 102?

Just had the thermistors replaced on above model. Am now getting the low CH pressure light flashing, despite ... [Read more]

ferroli bombination boiler?

how do i increase water pressure to 1.5 bar to boiler

PRV failure on Biasi Combi?

Had a Biasi for 4 years now and it's been a bit noisy but OK. Recently been losing around a bar of pressure p... [Read more]

how do I fix vaillant ecotec plus reading F.75?

My vaillant ecotec plus displays f.75. Pressure reads 1.4 bar. Have no heating or hot water. how do I fix this... [Read more]

ideal isar pressure loss?

topping up the pressure on a daily basis to 1.5 bar, there are no obvious signs of leakage anywhere on the sys... [Read more]

pressure on system running hgher than normal?

system set for 2 bar but when running goes to 3.5 bar what is the problem Thanks

re worcester nat gas non condensing 28cdi pressure?

thanks sd it rises from 1 bar to above 2.5, then bled it, cant remember it going that high till just lately a... [Read more]

expansion vessel pressure?

we have an oil fired combi with a separate free standing 24 litre expansion vessel some 3 metres away. Follo... [Read more]

Vokera Linea 24 Combi Boiler - High pressure problem?

Hi, I have a problem where by the pressure on my boiler keeps hitting 3 bar & releasing all the water outsi... [Read more]

central heating?

loss of bar pressure after using central heating

What does the error code "L.E."mean on an isar HE24 combi boiler?

Some times when the boiler is running on central heating,the cut out opperates and L.E.flashes.Nothing works u... [Read more]

worcester boiler 24i keeps losing pressure goes below 1 bar when cold ?

then risies to 3 bar when heating on full

how to get bar pressure ?

have no bar pressure tried the loop switch under boiler water came out bar pressure went to 0.5 and wouldnt go... [Read more]

no bar pressure at all?

hi as of today boiler bar pressure has hit 0 iv reset it turned heatin temp on boiler to full but as of now st... [Read more]

bar pressure wont stop rising when the system is turned on?

how can i fix it ?

Faulty Worcester 24i Junior RSF?

I have a Worcester 24i Junior RSF Combi Boiler which seems to have developed a fault. Although the fan etc see... [Read more]

my potterton boiler pressure has dropped to 0.5 on bar. how do i repressuri?

my potterton oiler need repressurising, how do i do this?its a potterton gold combi boiler