How to mend Dhw Ok Ch

plate heat exchanger?

for the second time in 2 years i think my plate heat ex in my vaillant combi is clogged up. the Ch seems to w... [Read more]

1

Potterton Promax 15HE Boiler -relay clicking problem?

Hi, Need some help please. A 6yr old Potterton Promax 15HE on an unvented boiler installation has suddenly st... [Read more]

2

Vaillant VCW GB 242EH combi boiler?

CH flame failure due to low water pressure. re- pressurised but wont ignite. pump , fan & DHW working OK

7

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]

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

2

Problem with CH only on Ferroli Combi 77 FF boiler?

Hi I have a ferroli combi 77 FF boiler which works fine on DHW and is OK the first time it comes on with CH. H... [Read more]

1

Ideal isar combi stuck in DHW, won't fire?

Hello Does anyone know much about Ideals? Mine is stuck in dhw, it isn't firing (no fan no pump either).... [Read more]

4

Ariston Genus loss of pressure?

Boiler is losing pressure & faults out daily. I have recharged the expansion vessel for CH which seems ok. I... [Read more]

1

Heatline Vizo 24 DHW OK CH Intermittent?

Hi, I have a Heatline Vizo 24 boiler. The hot water is working fine but the central heating is very intermitte... [Read more]

2

Vaillant Turbo Max Problem?

Hi, I had a classic case of a diverter valve problem. No DHW - the plastic arm wasn't engaging the micro switc... [Read more]

1

my biasi boiler is working on dhw, but on ch it is working very slowly?

my biasi boiler is working on dhw, but on ch it is working very slowly, the returns are cold, the ch system se... [Read more]

2

Problems with dhw on ideal isar 24he ?

ch ok but poor hw

I have a chaffateux 80 boiler cuts out on CH mode?

I have a chaffateux 80 boiler, the dhw works ok but when CH goes out after a few minutes. It goes back on when... [Read more]

3

Combi 80, CH losing pressure quickly?

Hi, just found this website and it seems there are a lot of knowledgeable people in cyberspace. My question... [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]

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]

1

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]

6

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]

3

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]