How to mend ... Going Ch Dhw

How can i fix my Potterton Puma 80, DHW won't work unless CH. is on?

My Potterton Puma 80, (permanent pilot), will not supply DHW. unless the Central Heating is also turned on.

ideal isarhe24 dhw works ch doesnt ?

i turn boiler off at night &back on a.m thermo set to manual. pressure between 2&3

my ferroli modena 102 boiler lights only for a few swconds then cuts out?

Hiya, can anyone help, I have a ferroli modena 102 boiler, it has stopped running both the DHW and CH, it'll s... [Read more]

intermittent hot water ?

I have wall mountd worcster 30cdi - 3 yrs old .CH is working fine. the hot water supply pipe runs between dwn ... [Read more]

halstead ace high problem?

Hi, I have a problem with my hot water and heating. The Halstead Ace High boiler does not come on when a deman... [Read more]

vokera dhw problem?

my vokera boiler has ch but when you call for hot water the boiler lights but no hot water is delivered

GlowWorm 24ci boiler high pressure fault?

With the boiler left on, i.e. no demand for DHW or CH, the pressure will remain constant, set at 1.0 bar. Whe... [Read more]

problem with Vailant eco Tec 831?

have DHW, pressure fine 1.4 but have no CH, boiler fires up on demand and turns off, have no fault code only f... [Read more]

jaguar 28 will not run ?

My Jaguar 28 has no fault displayed but has a problem running both CH & DHW the system lights for about 15 - 2... [Read more]

glowworm betacom 30c fault?

in either ch or dhw mode, boiler runs thru sequence properly and gas ignites. After 5 secs gas goes out and af... [Read more]

Heating/Hot Water Problems with Ravenheat RSF100ET?

Hi Original problem was not very hot DHW, but burner running flat out. Changed both DHW and CH thermistors, ... [Read more]

ace high boiler problem?

replaced diaphram and diverter valve service kit , ch working ok , in dhw only mode both central he... [Read more]

worcester 30si?

boiler ok in ch wont fire at all in dhw

How can I stop my Ravenheat CSI 85B tripping out?

I had a new Ravenheat CSI 85 B T installed today. It worked for the plumbers who installed it - they left and ... [Read more]

swiftflow 75?

dhw working ok.not firing up for ch demand

brittany combi se 80 hot water fault?

guys, i have the above boiler, and before xmas had a problem where i had no hot water, i called an engineer w... [Read more]

Ravenheat White Star LS 100 T, DHW intermittent?

CH is fine, but the DHW comes on & off, not constant, a lot of clicking noises from the control panel, before ... [Read more]

RAVENHEAT ls100t - warm water only, heating ok?

Hello, I'm hoping someone may be able to help. My combi boiler was fitted around 6 years ago, and after two ... [Read more]

How can I fix my Vaillant VCW-GB 242 EH?

CH works fine until any DHW flow is turned off. Burner goes out and stays out even though CH is calling for he... [Read more]

Hot Water Problem with Ideal Isar He24 Combi?

Hi, Can anyone help? A friend of mine is having problems with her hot water supply from her Ideal Isar He2... [Read more]