How to mend ... Boiler Water Pressure Valve

why does my baxi 105e keep going over 3 bar and losing water l?

pressure goes up past 3 bar and releif valve lets water out continually but boiler seems to work ok

Glowworm 30ci leaking?

A couple of days ago, I noticed that the heating was off. I used the internal control to fire it up, but there... [Read more]

leaking pipe? Ferolli boiler new in 1993?

Our Ferroli boiler's pressure keeps dropping and we have been told we have a leak (not in the boiler itself) ... [Read more]

Reillo RDB1 boiler (kerosene burning)?

Hi. My boiler is on the blink. Recent History is that 1) it ran out of oil and got airlocked. 2) fixed airlo... [Read more]

halstead ace no hot water?

my ace boiler is not so ace. the hot water is playing up if you turn it on then down to a trickle it was stayi... [Read more]

How do I fix my potterton lynx II?

My potterton lynx II combi boiler is not working correctly as the hot water circuit is fine but the heating sy... [Read more]

Worcester 25Si ...Hot water not firing up at low pressure?

I've got a Worcester 25si around 7 years old combi, recently it decided to have a problem with the hot water. ... [Read more]

How do I re-pressure Vaillant VCW-sine 18 T3WF H combi boiler?

I have a Vaillant VCW-sine 18 T3WF H combi boiler that has lost water pressure. I haven't got the manual and a... [Read more]

noisy ideal isar HE 24 condenser boiler?

I have an Ideal Isar HE 24 and am having a problem with it. Its about 4 years old i have just changed the DHW ... [Read more]

Hot water OK but no C.H?

I have a 2 years old Ferolli 24 combi boiler. The C.H just stopped working although the hot water supply conti... [Read more]

Potterton combi 80 boiler?

I have re pressurised the expansion tank as suggested. There is no water coming from the valve on the unit nor... [Read more]

How can I fix my Thema classic F30E?

The seal has gone on the diverter valve allowing water to leak into it's mating part rendering both parts knac... [Read more]

Potterton Puma 100e Low Pressure?

I have replaced the safety valve and thermostat on my boiler, when the system pressurises to about 1bar the lo... [Read more]

worcester 24i rsf fault with heating?

After heatings been on for around 10 mins starts to make noise like air in the boiler ,Changed the pressure va... [Read more]

Ravenheat combi boiler pressure - won't stay above zero?

I have a Ravenheat combi boiler and the pressure got to above 4 so I released the pressure by turning the red ... [Read more]

my boiler pressure is too high how can i reduce it?

I have shut down the boiler to replace a broken valve on a radiator and now the heating on my ikon boiler will... [Read more]

how do i fix my heating system with a ariston microsystem 21 boiler?

i added a towel rad in the toilet on the downstairs circuit, but i cannot seem to get all the rads downstairs ... [Read more]

luke warn water?

My six month old Optomax HE 31 C boiler was working perfectly until 3 weeks ago firstly the pressure started t... [Read more]

Worcester 28i RSF Combi Boiler losing water pressure?

The boiler will not hold its water pressure and is venting water through the pressure relief valve to outside,... [Read more]

Worchester greenstar CDi 35 losing pressure?

Hi, I`ve had my Worchester CDi 35 for 1 year with no problems, runs great however last month I`ve been having... [Read more]