How to mend ... Water Into Ch After Down

Worcester 350 Hot water only warm?

Had reason to change main PCB but now luke warm water but CH ok. Do the PCB potentiometers need setting up for... [Read more]

vaillant ecomax 824e flashing e20,e13,f20. How to fix it?

Thing is, that my boiler (which is vaillant ecomax824e) use to go through these codes e20 and then f 20, or e1... [Read more]

ravenheat h85t looses pressure on ch only?

I have had my boiler switched to dhw only through summer ,now its dropped cold but back to ch/dhw works fine o... [Read more]

Synchronous Motors - Hot Water No CH Poterton Neataheat Profile 30e - 80e?

Hi, Further to my recent (and ongoing since Oct/Nov 2009!!) Answer/Post/update - under title; 'Hot Water Bu... [Read more]

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]

hot water and c/h?

all is working but no hot water getting through to ch or hot water

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 water cooler (MILANO-MODEL 429CH) ?

My hot & cold milano water cooler no longer puts out cold water (model 429 ch). If i can not repair it my self... [Read more]

How can i fix Ferolli Modena 102?

When calling for hot water,boiler fires up and keeps running. Water sometimes hot but mostly cool.Fitted new h... [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]

CH is ON in the off position and will not turn off?

I have a Halstead Finest Combi boiler, which the CH automatically came on at night and unable to switch it off... [Read more]

how can i fix my 9,24 electronic Worcester?

pilot light ok but the green demand light not on, no hot water and no ch, checked fuses on circuit board all a... [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]

Halstead (Wicks) combi 102 CH failier?

I have a Halstead 102 combi and it has started to fail when ch is switches on - if it is running it may run fo... [Read more]

centrel heating boiler problem?

when hot water is not in use and ch switch is on minimum the disply panel shows c instead of o and the pump ke... [Read more]

Ravenheat CSI 85A fires up then goes out on CH?

Help, I have a CSI 85A which when you call for central heating fires up for around 6 seconds then goes out the... [Read more]

I cannot get water back into the CH system after draining down?

I drained down our CH system and can't refill it now. Its a traditional system with a expansion tank in the l... [Read more]