How to mend ... Boiler Ch Dhw

Baxi Combi Instant 80 he pump fault/low pressure fault?

Hi, I have changed the differential valve dhw on my Baxi boiler today, and fired it all back up and topped up ... [Read more]

ferroli optima 901 c/heating problem?

heating will not come on but hot water ok. pump runs. boiler fires up when stone cold for c/h eventually but w... [Read more]

error code 5 on maxol supacombi he 28?

hi all . error code 5 keeps coming on when the boiler is either heating up dhw or ch . flame is light and wate... [Read more]

Ravenheat boiler ( ye i know there s*&%e )?

Hi Guys My Ravenheat boiler works very intermittently , it can run for most of the day , both DHW & CH , t... [Read more]

Why has Heat Exchanger on IDEAL ISAR HE24 gone?

So... At the end of 2008 (early December, so about 4.5 years ago). We had central heating installed for the... [Read more]

anyone help with Baxi 105 HE problem?

Hello new to this site - hope someone can help with this problem. Baxi 105 HE - ch stopped working, in dhw mo... [Read more]

Halstead ace high will not reset?

Hi, I have just serviced a Halstead ace high 30kw combi for a customer. I closed the gas valve to check the ... [Read more]

new worcester 550I combi boler?

When the hot tap is opened fully the temp of the water increases until the boiler trips out .Worcester service... [Read more]

potterton performa 28 boiler?

hi there my boiler fires up constantly once the electric is switched on,cannot control it from the room thermo... [Read more]

ravenheat csi85a ch problem ?

dhw working fine but boiler cycling when in ch mode.boiler will light and go out after about ten seconds and g... [Read more]

can you fit a 85 without using thedhw side?

can you fit a csi 85 boiler and just use the ch side not pipping up the dhw side

Biasi M90F.24s?

Boiler was running ok! then sprang a leak that was traced to the main flow switch membrane. This was replaced ... [Read more]

My sabre 29he boiler is cutting in and out every 8 to 10 seconds?

I have a sabre 29he boiler its going thru the start up process with flame and fan then it cuts out the red lig... [Read more]

ariston microgenus 27 MFFI?

I have had this boiler in now for 12 years and it has ran perfect, the problem now is when it runs on the ch n... [Read more]

My halstead ace30 DHW not getting hot ?

The boiler fires up ok but the water I only Luke warm the CH is ok tried altering the control an resetting but... [Read more]

How can I fix my Saunier Duval Semia Condens boiler?

The Central Heating (CH) side works perfectly but the Domestic Hot Water (DHW) has developed a problem, thus..... [Read more]

Ferroli Modena 102 luke warm hot water?

Any help have Modena 102 sometimes when 1st time calling CH the gas flame is very low if flame doesn't spread ... [Read more]

how can I fix my Ferroli boiler?

boiler goes on shut down on DHW CH will run continuous can be reset on reset button but will shut down again ... [Read more]

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]

vokera combi hot water issue?

Hi My hot water tap has to be on full flow in order to trigger the boiler to fire up. Can it be adjusted to f... [Read more]