How to mend ... Ch Hot Water

Worcester Bosch 400BF Hot Water Cutting Out?

Hi I have a problem when running hot water it is hot for a while then runs cold then back to hot the CH light ... [Read more]

Programming Honeywell CM921?

Hi: The heating engineer installed this unit during installation of a new boiler. This is a 1 day wireless pro... [Read more]

How can I fix my Greenstar CDi condensing combi boiler?

...after nearly 4 years of fault free operation from new, this morning I had no hot water & a "EA" message dis... [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]

Halstead ace high boiler, ch not working?

my central heating is not working but the hot water is fine, think it may be the diverter valve but not sure

No heating, but Hot Water works fine Vaillant VuW 242 failure: F.28 ?

In my case F.28 comes ONLY if heating needs to start. If I open the hot water tap during CH ignition attempt,... [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]

Vaillant Pro 28. Rads get warm when hot water is run?

I recently had error code F75. Pressure was low and boiler locked out. I put pressure right and turned boiler ... [Read more]

Ravenheat 85T Boiler continually stop starting?

Hi, looks like I've made a bad purchase with a Ravenheat boiler CSI 85T ( 14 months old) . Boiler works ok in... [Read more]

no hot water from shower?

i have a mira shower (mains) and i have no hot water the ch system works as do my hot taps when i turn on the ... [Read more]

Potterton Netaheat 16-22 HW doesn't work without CH?

I have had this problem with our Potterton Netaheat 16-22 Boiler for a while now. It is fine during the winter... [Read more]

f9 flashing on combi boiler 30ci glowworm ?

the light flashes red intermittantly. the pressure is ok at 1.2 bar . we have CH . when the water is on it is ... [Read more]

I have a Ideal Classic NF 30,fires up but no hot water?

I adjusted something at the top of the boiler which has 3 settings, I thought it was the speed of the pump, ma... [Read more]

how to check the pump on a worcester 28si boiler?

i want to know if the pumps going on my boiler. the ch is still working and hot water still working but wont w... [Read more]

Ravenheat boiler with no hot water?

Have a CSI 85..CH is working fine but hot water is non existent. Started out intermittent.. Boiler fires up ... [Read more]

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 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]

Potterton Performa 28 intermittent hot water ?

Hot water cuts out but CH works fine. Sower makes funny noise just before water going cold then again when th... [Read more]

ferroli bioler banging?

I have a ferroli DOMIcompact24 b boiler. When the boiler is not on, the pressure dial is about 1 bar. But ... [Read more]

no hot water vailant boiler?

the CH side works fine but we get little or no hot water whether the CH is on or not, when the hot tap is turn... [Read more]