How to mend ... 4 Demand Work

boiler locks out?

i have a halstead finest gold boiler, clock doesnt work so i turn boiler off ,on by the fused spur. boiler goe... [Read more]

Saunier thelia 23 boiler not igniting?

I have a fault on the boiler, Everything seems to work but it will not ignite. I have checked the voltage to t... [Read more]

worcester 24i rsf. intermittent pump and unreliable burner firing?

problem with boiler - when i demand hot water, the pump will work but sometimes burner will not fire up, somet... [Read more]

Chaffoteaux Calydra 100 water on demand gets cooler as used?

Chaffoteaux Calydra 100 When I use the shower the intial water is hot but soon as the ondemand tank is empt... [Read more]

Hot water and heating working but only at low demand?

Im just wondering can you help my boiler is 21months old and Im being told the warranty is invalid because wor... [Read more]

circuit board smells and fuses ok pilot ok but no demand gas?

trying to work hot water but no joy circuit board brown left side and smells burnt?

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]

Vaillant Turbomax 828 problem?

This is a strage one! I am not sure whether my diverter valve is on the way out or whether something else is c... [Read more]

Ravenheat CSI 85T not firing?

Our Ravenheat boiler has given up on CH and HW. There has been an intermittent fault (fault described below) f... [Read more]

Ferroli HE 31 C Problem?

I have new boiler (less than 2 months old) that was working fine, but now DHW won't work. Fault d1 comes up on... [Read more]

Central heating not working independantly?

Replaced room thermostat as old one damaged, replacement is Drayton Combistat, 3 wire config'. All seemed wel... [Read more]

24i/28i Junior Problem?

Father christmas has brought me an early present! Please help if you can! My boiler knocked off while in use a... [Read more]

Worcester 35CDi II Flame Indicator Off?

I came home from work last night and the green Mains Indicator was on, the CH Demand Indicator was flashing sl... [Read more]

I cant get 4 on demand to work?

I cant get 4 on demand to work on my computer. it goes as far as the parental control window, however it wont ... [Read more]

The heating on my Worcester 280 boiler has stopped working?

The hot water heating works on demand but the heating doesn't. The LCD display isn't working. This hasn't been... [Read more]

Caravan Hot Water won't work?

I have bought a second hand caravan with a primus 2470 heating and water system. Apparently the man |I bought... [Read more]

you may need to do drawings before you answer this one ?

This one will put you to the test…….. I have came across an situation in a pub/restaurant where I have a ... [Read more]

Potterton Suprima 30 cutting out- green flashing light?

Hi, I hope you can help. I've just had a new PCB fitted and now when the demand is on for either the hot water... [Read more]

I have no control of my heating, glow worm micron?

i cant seem to get my heating to come on on demand ive tryed to change the time settings tryed continuos tryed... [Read more]

Renault Grand Scénic dashboard case to Consumer Disputes Board? Anyone?

My 2004 Renault Grand Scénic's (the last Renault of my life) dashboard here in Finland went blank in June for... [Read more]