How to mend ... Fire Dhw Ch

Problem with CH only on Ferroli Combi 77 FF boiler?

Hi I have a ferroli combi 77 FF boiler which works fine on DHW and is OK the first time it comes on with CH. H... [Read more]

Potterton Netaheat 10/16 Electronic Boiler?

When switching for ch/dhw boiler tries to fire up but intermittently fails, I can hear like a sloshing, there ... [Read more]

Ideal isar combi stuck in DHW, won't fire?

Hello Does anyone know much about Ideals? Mine is stuck in dhw, it isn't firing (no fan no pump either).... [Read more]

Worcester bosch 24i not going ON automatically?

Hello, I want to share how i fixed my boiler - worcester 24i. Issue: the boiler would not go on when... [Read more]

Heatline Vizo 24 DHW OK CH Intermittent?

Hi, I have a Heatline Vizo 24 boiler. The hot water is working fine but the central heating is very intermitte... [Read more]

Biasi Prisma 24se won't fire up when cold?

Over the last six months there has been a gradual increase in the time the boiler takes to fire from cold. Ori... [Read more]

Glowworm / Glow worm compact 80e locking out not working !!?

Hi I have a new compact 80e installed which I bought about 1 year ago. The boiler was a surplus and had bee... [Read more]

how can i fix my ideal c80ff combi?

my combi fires up on ch but wont always fire when dhw is required. i switch on the ch and it fires up then the... [Read more]

Ravensheat 820 Boiler won't fire up?

My boiler will ignite the pilot light but won't go to full heat, for CH or DHW, any idea's would be great

halstead finest gold no dhw?

when i turn hot tap on boiler will not fire up. if turn ch on dhw works ok. help!

how do i re-pressurise my vokera 20/80 rs flowmatic?

my vokera 20/80 flowmatic will not fire up for dhw and ch. the pressure gauge is at zero so i assume it needs ... [Read more]

Ferroli Modena 80e will not light?

Hello I have read your forum for a while because I have a 10 year old Modena that is good but never trouble fr... [Read more]

Potterton Puma 80e - low pressure switch - boiler not firing?

I have just changed a low preesure switch on a Potterton Puma 80e. When I recconnect the two cables the boiler... [Read more]

Ferroli Modena 80e won't fire up, D.H.W or C.H?

When i put a call in for DHW or CH everything starts ok but the burners dont fire up, there is a spark, i have... [Read more]

Ravenheat CSI 85 no DHW unless CH on?

Hi, I have a problem with a Ravenheat CSI 85 (18 months old) which will only give DHW when the CH is on. ... [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]

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]

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]

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]