How to mend ... Valve Thermostat Water

Worcester Greenstar 24i junior: doesn't work!?

Hi I've just moved into a new property, the boiler is only about 2 years old; when I moved into this house th... [Read more]

potterton suprima 50 pcb problem?

after several years of problems,2 pcb boards,pcb repaired twice since [dry joint problems] new upgraded pcb fi... [Read more]

ravenheat csi 85?

hi I need help with my boiler. When i run the hot water the boiler lights normal but the high flame on the b... [Read more]

No H/W from Ariston boiler unless Rads are on!!?

I have read a few forums that say this problem is almost deffinately the diverter valve, however my plumber ha... [Read more]

I have hot water overflowing into the loft expansion tank?

I had a new cylinder fitted in December 2009 and the plumber also upgraded the 3way valve to an electric one. ... [Read more]

hot water but no heating?

hello. i have a worcester danesmoor oil boiler, its a sealed system, honeywell st699b programer honeywell V... [Read more]

low water pressure F28 lockout, Vaillant Turbomax plus 828E ?

Hi guys, Hope you can help. I've viewed all the relevant and some of the irrelevant posts on similar subjects ... [Read more]

Flood due to boiler ???

A few weeks ago we noticed warm/hot water pouring out of the eaves of our house, upon inspection we found that... [Read more]

Halstead Ace High, high pressure rise to 2.5bar when heating is on?

Please help, all rads bled okay, hot water demand fine. But pressure on gauge shows a rise from 0.5 to 2.5bar... [Read more]

Boiler cutting ouit?

We have recently had a new central heating system fitted, and are having problems, what we have is the boiler ... [Read more]

Potterton Promax 15HE Boiler -relay clicking problem?

Hi, Need some help please. A 6yr old Potterton Promax 15HE on an unvented boiler installation has suddenly st... [Read more]

No hot or cold water-Pottrerton Boiler & Accolade Storage Tank Help! ?

Hi all, I have a Potterton Suprima 60L Boiler and an Accolade 144 AA160 unvented hot water storage system. It... [Read more]

Potterton Performa 28i?

Nightmare!! Had loads of problems recently, replaced board, pump and diverter valve, was fine for a while. Had... [Read more]

johnson & starley model J25 - 32 Mk3 modair flow water heater thermostat?

johnson & starley model J25 - 32 Mk3 modair flow water heater? Hi I have the above model warm air heating sys... [Read more]

johnson & starley model J25 - 32 Mk3 modair flow water heater?

Hi I have the above model warm air heating system, however I have been informed that the thermostat(mercury) a... [Read more]

No heating but got hot water?

I have hot water but no heating. Thermostat is on, timer is on but the boiler won't fire up for the heating. I... [Read more]

How can I mend my Danfoss thermostatic cylinder control valve?

Danfoss have just told me that my Thermostatic cylinder control 2 part valve and thermostat 22mm, gravity fed,... [Read more]

Hot Water but no CH Potterton Netaheat Profile 30e-80e?

In the last day or so we have noticed that we are getting hot water but no Central Heating (rads are cold etc.... [Read more]

grant 70/90 outdoor, sealed system boiler?

I have been losing pressure and some water from system for some time now could'nt find a leak any where indoor... [Read more]

old baxi rs, need to know how to refil system with water?

i have an old rs boiler which runs fine, the other day we had a leak from the kitchen radiator ,so the wife tu... [Read more]