How to mend ... Trying Ch Boiler

Strange timer fault on Halstead Best 50?

I have a Halstead Best 50 which works fine on HW timer but does not work on CH timer. If I switch to continous... [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]

potterton EP2000 (old brown one) problem - CH always on ???

I have a Potterton EP2000 - problem is when i try to put the HW slider on any setting i.e twice/ once/ 24hrs, ... [Read more]

central heating/drayton RF!?

my ch is controlled via a Drayton RF1 thermostat and wall mounted boiler timer/control box. The thermostat is ... [Read more]

Potterton Boiler does not respond to the controls?

My Potterton Boiler does not respond to the controls, i.e. It continues to run and does not respond to the con... [Read more]

How can I fix the overflow on a worcester 28i junior?

I have a 6 year old worcester 28i junior boiler and the overflow started. I checked the the boiler and both th... [Read more]

problem with Vailant eco Tec 831?

have DHW, pressure fine 1.4 but have no CH, boiler fires up on demand and turns off, have no fault code only f... [Read more]

ch intermitent (biasi M90 24S)?

the hw works fine on my combi boiler but the ch starts for a few seconds then switches off , wait for about te... [Read more]

How can I fix my Vaillant Turbo Max 824E?

My CH was working fine till I disconnected & reconnected a radiator.I have refilled & blead all the radiators.... [Read more]

worcester 350 combi low pressure/leaking?

hi, my combi 350 worcester loses pressure slowly and i have totop it up,the other night it was on low pressure... [Read more]

only half of ch radiators working?

New boiler installed but not all radiayors working, have bled system & rads.

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]