How to mend ... Valve Heating Help

boiler pressure?

Main Combi 24 HE the pressure went above 3 and the relief valve went off. I released the pressure by letting ... [Read more]

halstead ace ?

boiler on light keeps flashing brand new diverter valve fitted only happens now and again also cleaned out pip... [Read more]

Bosch Worcester CD24i not delivering hot water properly?

When hot tap turned on water demand light comes on and burner ignites, water begins to get warm. Then after ab... [Read more]

Need a gas valve Urgently!?

Does anyone no where i can buy a push button gas valve part number 232302..We have no heating :( Cant find on... [Read more]

Burner on Sime Friendly Format 80E switches off?

Hi and help. My friendly format 80E is not so friendly, The burner in central heating mode will just switch o... [Read more]

New replacement Netaheat profile pcb not working?

What is the problem my new replacement pcb will now not work without me banging or jolting it then it sparks u... [Read more]

Problem with installing Drayton MA1 Valve & Actuator?

Hi everyone, I swapped out a failed switchmaster acutuator, and replaced it with a Drayton MA1 and wired it us... [Read more]

Overlow spilling out hot water?

My overlow is running with hot water. The heating and hot water are fine so how do I find the pressure valve t... [Read more]

no heating?

no heating pump runs what voltage and color wire to divert a motor? hot water working fine. heating fault inte... [Read more]

Worcester heatslave 20/25 leak from valve?

Hello! A complete novice when it comes to boilers, so bare with me! I've got a Worcester heatslave 20/25 and t... [Read more]

Potterton powermax HE. Hot water but no heating?

I have a potterton HE boiler. I have no heating. The actuator is moving on the diverter valve and the pump is ... [Read more]

potteron pipe connection diagramme?

hi i have a potterton floor standing boiler about 20 years old. i am upgrading to one of the new boilers what... [Read more]

ravenheat rsf820/20 combi overheating?

the boiler is supplying hot water ok however as soon as the heating is on the heat exchanger boils up & cuts o... [Read more]

Alpha 240p boiler problem. ?

Hot tap turned on, diverted valve functions and presses microswitch but gas does not ignite. Pilot light is on... [Read more]

why have i no hot water?

When i turn the hot water tap on the water is constantly cold. But when i put the central heating on the valve... [Read more]

ravenheat boiler?

got to run tap for long time to get any hot water,,if i put heating on i can the get hot water ..could this be... [Read more]

Converting to Y Plan system?

I am converting my heating system to a Y Plan using mainly Honeywell parts for the wireless room thermostat (H... [Read more]

icon 23t boiler help?

can anyone tell me why when i turn the hot tap on, the central heating turns on as well. have had the diverter... [Read more]

ikon 23t boiler help?

can anyone tell me why when i turn the hot tap on the central heating turns on as well. have had the diverter ... [Read more]

Water & heating not working on optimax 38 c?

I've changed diverted valve but still not fireing up , fan & pump running