How to mend ... Boiler Ch Dhw

Potterton Puma 80 - No hot water?

Potterton Puma 80 works fine with central heating, but without CH on, it does not produce hot water. At hot wa... [Read more]

DHW is not running hot on glow worm compact 100e?

Have just replaced leaking elbow feeding dhw from boiler but now dhw not running hot, ch is ok. Any ideas plea... [Read more]

How do I stop my Ferroli Modena 80 E gas boiler sparking once it is lit ?

The boiler recently stopped firing up on DHW and CH. When I moved the flame sensor electrode cable at the main... [Read more]

Biasi Prisma 24se won't fire up when cold?

Over the last six months there has been a gradual increase in the time the boiler takes to fire from cold. Ori... [Read more]

VCW GB 282EH PCB board not lighting up?

Time clock set constant,"CH switch On" does not aluminate, fuses OK ,only way to operate & ignight boiler "CH ... [Read more]

vokera linea 24 combi boiler?

the gas supply to my Vokera linea 24 pulses ie on 5/6 seconds then off 5/6 seconds off on both dhw & ch.

Potterton Performa 24i HE. DHW ok but CH not working?

This boiler had been switched to DHW duties only over the summer and autumn. Now I switch to CH&DHW the CH is... [Read more]

RAVENHEAT LS80 in consistent DHW + pressure probs?

I have a ravenheat LS80T and when i don't use the Heating the pressure stays perfect but when I use the heatin... [Read more]

biasi 24 fault finding dhw?

hi there have a biasi 24s i seem to be having a problem with the dhw when i turn the hot tap on the water some... [Read more]

Vaillant GB2 EH - Got DHW but no CH and its freezin!?

Hi Guys - am in desperate need for tips on how to fix our Vaillant VCW-GB-282 EH Combi. Installed about Apr 19... [Read more]

Glowworm / Glow worm compact 80e locking out not working !!?

Hi I have a new compact 80e installed which I bought about 1 year ago. The boiler was a surplus and had bee... [Read more]

How do I increase my combi boiler hot water temperature above 60*?

Ferolli Maxima 35C. Good animal, had it for 3 years but it niggles me that the DHW is limited to about 60 deg... [Read more]

how can i fix my vaillant vcw-gb-280h boiler?

i have no gas solenoid ignition there is no voltage to the soleniod in ch mode or dhw mode .All stats test ok ... [Read more]

Hot water keeps boiling?

DHW (gravity fed HW pumped CH system; Potterton floor standing (?1200) balanced flue boiler replaced 6 years a... [Read more]

ch will not turn off. when on dhw only?

thermostat disconnected on boiler .swich on water only ch still comes on .continuse burning till over heat.

ferolli modena 80 fan?

Hi my boiler has been working fine until to-night when the fan will not switch off without a reset. CH and DHW... [Read more]

ferroli falcon boiler lockout?

my ferroli falcon intermittently stops supplying both dhw and ch,if i switch the reset then boiler reignites.w... [Read more]

Ravensheat 820 Boiler won't fire up?

My boiler will ignite the pilot light but won't go to full heat, for CH or DHW, any idea's would be great

halstead finest gold no dhw?

when i turn hot tap on boiler will not fire up. if turn ch on dhw works ok. help!

Why is the CH on my Modena 102 boiler not working?

The CH is not coming on at the boiler, the DHW works fine. Turned it on for the first time in months via the t... [Read more]