How to mend ... Need Really Hi Really Ch

got CH but burner wont light for hot water. help?

the burner fires normally for central heating but when you select hot water the light comes on but burner does... [Read more]

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

In addition the my previous question (with same title), I managed to get the Central Heating (CH) working for ... [Read more]

ch ok dhw works intermitantly or not att all raven ls80?

changed flow senser manuel saysmicro switch on shunt valve no shunt on parts list

Hot Water but no CH Potterton Netaheat Profile 30e-80e?

In the last day or so we have noticed that we are getting hot water but no Central Heating (rads are cold etc.... [Read more]

how can Ifix my diverter valve?

do I have to turn the water off and drain the CH system to replace the diverter valve diaphragms on my baxi 10... [Read more]

ferroli domicompact f 30 b hot water works fine but ch wont work?

It will run for 15 min when test programme is run but wont work on timer or on overide, was working fine until... [Read more]

o What component would you test if the system pressure rises sharply on a C?

What component would you test if the system pressure rises sharply on a CH demand?

how can i fix my powermax he 85?

status code A15 CH pressure loss ,if using just hot water all good but once i'll switch on CH ok for less than... [Read more]

Hot water ok but what's wrong with central heating?

That time of year to turn on central heating. Hot water been working fine all summer, tried CH today but no jo... [Read more]

Overheating light on in boiler (Potterton Flowshure Plus)?

I have a Potterton Flowshure Plus boiler. When I put the CH on today there was a slight rumble and squeaking f... [Read more]

heating still on!?

I ve got a potterton suprima 30 with EP2002 control panel. The HW slide is set to timed and the CH slide is se... [Read more]

Vokera 80SP question?

The boiler works fine both HW and CH, but the operation sequence seems not quite right. When CH is selected, i... [Read more]

Vaillaint COmbi boiler CH turns off after 1minute?

My mumz Vaillant combi boiler (18yrs old) ignites for CH demand then the flow heats up, Return remain cold...a... [Read more]

Potterton Prima 40C - Pilot light on, no fan/main burner?

Help! No heating! It was working perfectly until yesterday. The pump's working ok, and comes on when the CH... [Read more]

Boiler cycling - 10 seconds on 10 seconds off?

Myson apollo 30si, CH only, boiler thermostat on low, no room stat, radiator stat's on 4 radiators - 2 without... [Read more]

hOW CAN I FIX mY BAXI 105E COMBI BOILER?

ON BAXI 105E BOILER THE CH PRESSURE VARIES WITH BOILER TEMP. FROM LESS THAN 0.5 BAR COLD TO 3BAR HOT HAVE CHE... [Read more]

could it be a thermistor?

trying to find out whats wrong with my vokera option combi, it fires up on hw then trips out, the water then g... [Read more]

Baxi 105HE problem?

My combi is playing up. There is no problem when it is on the hot water setting only. But when on CH/W setting... [Read more]

Halstead HE30 CH wont work?

My Halstead ACE HE30 will fire up when I turn on the hot tap but it wont fire up for the CH. I have tried to r... [Read more]

how can i fix my vailent combi model vcw 242eh?

pressurised boiler after flushing rads , to one bar,when running heating the pressure rises to two bar,when ch... [Read more]