How to mend ... Boiler Mode Ch

Flexicom 30sx - boiler error?

When there is demand the Glowworm Flexicom 30sx cycles through burner on, then state codes 98 and then 97 befo... [Read more]

boiler keeps anticycling?

I have a Halstead Ace High combination boiler,the boiler keeps shutting on/off either in ch mode or dhw mode ... [Read more]

Worcester oil boiler; hot water on CH off, but CH keeps working?

I have a Worcester Heatslave oil boiler. the HW is on constant but when it kicks in to warm up the water, t... [Read more]

ravenheat csi85(T) 780series?

boiler works fine on dhw setting butwill not work on ch mode,i have tested thesummer/winter switch and is ok.h... [Read more]

can anyone help- Domina 80E CH fault?

I can get hot water easily and constantly but the central heating doesnt work properly. The CH comes on when i... [Read more]

Domina 80E CH fault?

I can get hot water easily and constantly but the central heating doesnt work properly. The CH comes on when i... [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]

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]

ace high boiler problem?

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

Vaillant Turbomax 828 problem?

This is a strage one! I am not sure whether my diverter valve is on the way out or whether something else is c... [Read more]

Isar HE30 problems?

We have the Ideal DH30 Isar combi heater. I am having a problem with it recognising the thermostat for the c... [Read more]

Why does my Potterton Profile 80el fire up intermittently?

I have a Megaflo installation and the boiler is Potterton Profile 80el. Over the last few days the boiler has ... [Read more]

potterton performer 24kw HEcombi?

Hello ,is there any quallified heating engineers out there who may know wat this fault is. no hot water,the p... [Read more]

Hot water problems on Alpha CB24 X Boiler?

When boiler on "auto" or "timer" mode, there is no hot water when tap turned on until the pump kicks in for th... [Read more]

Heating comes on when hot water tap is running?

The problem with my Halstead Ace boiler is that when i run any hot water tap the heating circuit is also getti... [Read more]

re Worcester Boiler 9.24 Electronic. RSF?

The boiler is running in CH and Hot water mode. The boiler temp is set at just 2 or 3 on the main control. A... [Read more]

boiler locking out?

my puma 80e works fine in hot water mode, in CH mode it locks out

Baxi Eco80 Combi Boiler?

Hi... I have a Baxi eco80 combi boiler which has been working fine until a couple of months ago. What is happe... [Read more]

Can anybody tell me what is wrong with my alpha ocean 240e boiler, please?

Hello! My alpha ocean 240e boiler has trouble starting in CH mode. There is not problem whatsoever whit ho... [Read more]