How to mend ... Ch Ok Hot Water

Netaheat Profile 80e not lighting when call for heat?

I have a 20 year old Potterton Netaheat Profile 80e. Boiler heating water OK all summer. Wanted CH on today ... [Read more]

Vokera Linea Max - hot cycling after re pressurising expansion vessel?

I have re pressurised the expansion vessel to 12psi having isolated and drained the boiler. The vessel now hol... [Read more]

hot water and CH come on together when only one required?

my hot water and central heating comes on together when i only want one on i have a potterton back boiler wha... [Read more]

lost manual F22 and F25 codes?

Hi, can anyone help? New boiler working fine on the hot water side ..now have tried to put on CH..fine for x2... [Read more]

radiators not getting hot?

we have a vokera compact boiler and have had british gas out recently as we have a warrranty out with them but... [Read more]

Fitting New CH Pump and 3 Port Valve?

Hi, Further to my on going saga... I had elected to change the 3 port valve - as it had an intermitant f... [Read more]

Worcester 350 water luke warm?

Recently changed main PCB now water luke warm CH okay. Demand light does not indicate. Checked circuits as per... [Read more]

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]

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