How to mend ... Dhw Ok Ch

Baxi Genesis 80 - What's the fault?

Sometimes it works properly but most of the time on DHW it ignites, burns for a very short time (1 or 2 second... [Read more]

unburnt gas in flue gases, glow-worm 100e electronic combi?

Boiler fires ok on DHW and CH, plenty of hot water and no unburnt gas in flue gases on DHW, but in CH mode boi... [Read more]

Ravenheat CSI 85AT boiler tripping problem?

Ravenheat condensing combi boiler CSI 85AT fault? My 1.5 year old boiler has developed a random & intermitt... [Read more]

Ravenheat condensing combi boiler CSI 85AT fault?

My 1.5 year old boiler has developed a random & intermittent tripping fault, in both modes of heating (i.e. CH... [Read more]

Protherm 80E slow F0 problem?

Hi I have a Protherm 80E which has an odd fault in that the if pressure is set to say 1.5 bar all works exactl... [Read more]

Baxi 105e instant?

My baxi 105e instant will not allow the c/h to come on. Even if the selector switch is set for dhw and ch only... [Read more]

Boiler keeps going on & off?

ALPHA 280E - COMBI BOLER When my CH & or DHW is on the boiler fires then when reaches temperature stops - it ... [Read more]

vaillant vcw242e no ch?

boiler works fine in dhw mode but will not fire in ch. it will run the pump and fan and pressure switch and di... [Read more]

One hot water tap only gets warm, others in house get HOT?

Hi I have a Glow Worm Compact 100p (permanent pilot) providing CH and DHW. All the hot water taps work fin... [Read more]

Pump constantly running on Vaillant VCW GB242 EH?

I have recently noticed that the pump on my Vaillant boiler is running constantly even when there is no demand... [Read more]

Where can I get a manual for my Vaillant VCW GB 242 EH combi?

I have a Vaillant VCW GB 242 EH combi which is acting up. Just had a guy replace the pressure release valve fo... [Read more]

CH and DHW running when switched to timer off and DHW only???

I have a Britony Combi 80 (chaffoteaux) that the Central heating comes on when switched to DHW only or both! I... [Read more]

Worcester 9.24 Strange Problems?

Hi, Can anyone help with my problem. My Heatslave 9.24 seems to have a mind of it's own. Sometimes it will not... [Read more]

CH OK no HOT WATER on Vaillant Turbomax Plus 824E ?

Central heating works fine, but not hot water on any taps. When I turn the taps warm water coming for few SECO... [Read more]

Vaillant VCW GB 242 EH - burner keeps burning with Heating off and DHW Off?

DHW works fine, Boiler on with tap opened, off with tap closed, but reignites after a few seconds on low flame... [Read more]

vokera excel 80 E combi does not give hot water in DHW mode?

It gives hot water in the taps only when CH mode. Some times in DHW mode it attempts to fire and the fan may c... [Read more]

Fixing a Baxi 105e Combi which reports a fault when cold, works when reset?

Hi - this has baffled me and the heating engineer I've called in to look at it. My Baxi 105e has been reportin... [Read more]

britony combi 100?

britony combi 100.boiler in DHW mode all the time therefore the CH doesnt come on?

how can i get my sime 80 friendly format to ignite?

how can i get my sime 80 friendly format to ignite . I am quite familiar with parts of the boiler but it just ... [Read more]

What`s wrong potterton puma 80?

System lock-outs, Low system pressure System over pressures, sometimes no water flow through heating system b... [Read more]