How to mend Boiler Pressure Overheat

1

ariston micro combi 23 water loss?

water loss from external overflow pipe on ariston micro combi 23 when heating is switched off water leaks unti... [Read more]

2

worcester 28i junior?

my boiler works now and again, (usually not), i turn on water and the fan wont run i turn off water and the fa... [Read more]

2

Ferroli Falcon II Ignition Wont Fire Up?

Hello. I have a Ferroli FER Falcon II Combi Boiler. The fan runs but the ignition does not fire up. However, I... [Read more]

1

Sime super 90 overtemp trip?

My boiler is working fine for the CH side of things. When I run hot water the overtemperture trip goes after a... [Read more]

3

Ariston Euro Combi - Hot Water problem?

Euro Combi SX 20 MFFICE (GC No: 4711602) A few weeks agao, I had a problem with my heating - cured by chang... [Read more]

cant start ravenheat condensing primary boiler?

The boiler is under 2 years old,green light comes on when heat is called for and thats it.Fan spins for about ... [Read more]

My Baxi 80 ECO Combi boiler will not reset?

Following the manufacturers fault finding manual everything pointed to the PCB being at fault, this has been r... [Read more]

1

Boiler keeps switching off Alpha CB24x?

I have an APPHA CB24X COMBI BOILER. My boiler starts working ok, but after a while it switches itself off. and... [Read more]

1

Boiler keeps switching off?

I have an APPHA CB24X COMBI BOILER. My boiler starts working ok, but after a while it switches itself off. and... [Read more]

1

How to fix and overheat fault on my Glow worm 15hxi {3yrs old}?

on sunday i had a fault 4 {ignition fault- lock out when lit}, then in the same afternoon it went to a fault 1... [Read more]

5

potterton profile 50 e problem?

Hi need some help, i have a potterton profilr 50e boiler it works fine from cold but once it has heated the wa... [Read more]

1

How can I fix my Halstead Finest?

It's Safety Lockout led shines when it comes on. I have turned off, reset the Overheat Switch underneath, left... [Read more]

2

How do I remove PCB board?

The 407677 pcb in my potterton profile 40 is faulty ( thanks to this site for finding answers to symptoms). I ... [Read more]

2

Worcester Heatslave 9.24 RSF Safety Valve Blowing?

The safety valve is blowing out when I attempt to use my combination boiler. The overheat thermostat is also t... [Read more]

51

Ravenheat CSI 85AT boiler tripping problem?

Ravenheat condensing combi boiler CSI 85AT fault? My 1.5 year old boiler has developed a random & intermitt... [Read more]

4

Ravenheat condensing combi boiler CSI 85AT fault?

My 1.5 year old boiler has developed a random & intermittent tripping fault, in both modes of heating (i.e. CH... [Read more]

3

vaillant vcw242e no ch?

boiler works fine in dhw mode but will not fire in ch. it will run the pump and fan and pressure switch and di... [Read more]

2

baxi solo boiler keeps building pressure and puts water outside?

My baxi solo wall mounted boiler is fitted with an expansion tank(red shaped tank with valve). Recently the ov... [Read more]

2

I have a Heatline S24 and I think it has locked out. How can I reset?

The combi-boiler (Heatline S24/S30) locked out because the water pressure had dropped. We've filled the boiler... [Read more]

1

Should i Try!!!?

Should i try to replace the limit stat/overheat stat and vice versa, before changing the gas valve. the boiler... [Read more]