How to mend ... Hot Water Ch Boiler

My boiler hits high pressure as soon as it starts up and faults. Vokera ?

My vokera linea HE faults as soon as it starts up whether it is for heating or hot water. I can see the pressu... [Read more]

ariston microgenus ch fault?

my ch has stopped working, the boiler fires up but the temperature goes up to 85 very quickly then the boiler ... [Read more]

Why is the LCD screen on my Optima 701 blank? (And how do I fix it?)?

Since I moved into this flat, the screen on the CH boiler has been blank, like there's no power getting to it.... [Read more]

Domina 80E CH fault?

I can get hot water easily and constantly but the central heating doesnt work properly. The CH comes on when i... [Read more]

Boiler cuts out when CH set to on?

I have a potterton system with a 2002 timing controler and a PT2 remote electronic thermostat. If the system i... [Read more]

Halstead Ace High boiler central heating cuts out before thermostat tempera?

Hi, my Halstead Ace High boiler central heating cuts out before thermostat temperature. Hot water works fine a... [Read more]

Worcester Heatslave 20/25 Combi-boiler?

Our Worcester heatslave 20/25 combi-boiler seems to have a mind of its own. The hot-water sometimes takes age... [Read more]

how to fix my jaguar 23kw combi boiler?

my hot water is fine but when i put my ch on if say its preset to 50c it will come on go up to 59c then keep c... [Read more]

problem with puma 80 boiler?

The pressure drops regularly,but i cannot see any leaks,Both ch and hot water work ok but after turning hot wa... [Read more]

Netaheat Profile 80e not lighting when call for heat?

I have a 20 year old Potterton Netaheat Profile 80e. Boiler heating water OK all summer. Wanted CH on today ... [Read more]

Vokera Linea Max - hot cycling after re pressurising expansion vessel?

I have re pressurised the expansion vessel to 12psi having isolated and drained the boiler. The vessel now hol... [Read more]

hot water and CH come on together when only one required?

my hot water and central heating comes on together when i only want one on i have a potterton back boiler wha... [Read more]

lost manual F22 and F25 codes?

Hi, can anyone help? New boiler working fine on the hot water side ..now have tried to put on CH..fine for x2... [Read more]

radiators not getting hot?

we have a vokera compact boiler and have had british gas out recently as we have a warrranty out with them but... [Read more]

vaillant ecomax 824e flashing e20,e13,f20. How to fix it?

Thing is, that my boiler (which is vaillant ecomax824e) use to go through these codes e20 and then f 20, or e1... [Read more]

ravenheat h85t looses pressure on ch only?

I have had my boiler switched to dhw only through summer ,now its dropped cold but back to ch/dhw works fine o... [Read more]

Programming Honeywell CM921?

Hi: The heating engineer installed this unit during installation of a new boiler. This is a 1 day wireless pro... [Read more]

How can i fix Ferolli Modena 102?

When calling for hot water,boiler fires up and keeps running. Water sometimes hot but mostly cool.Fitted new h... [Read more]

How can I fix my Greenstar CDi condensing combi boiler?

...after nearly 4 years of fault free operation from new, this morning I had no hot water & a "EA" message dis... [Read more]

Heating/Hot Water Problems with Ravenheat RSF100ET?

Hi Original problem was not very hot DHW, but burner running flat out. Changed both DHW and CH thermistors, ... [Read more]