How to mend ... Boiler Works Problem

Worcester Bosh 24SI II?

When boiler initially switched on it ignites and the heating and hot water works. After about 5 minutes (has ... [Read more]

Potterton Suprima, flashing amber light?

I had the dreaded PCB lockout issue a couple of years back, and had the PCB replaced. Bolier now works perfec... [Read more]

sime combi ?

i have sime ecomefort H.E it is 12 months old i have no central heating connected i only run hot water fro... [Read more]

vaillant vcw 242 eh?

After DHW pipe is closed boiler start sparking again (with no fan start).After safety time boiler goes into bl... [Read more]

Central Heating works but no hot water? Worcester 28i RSF?

Hi I hope someone can help. I have a Worcester 28i RSF Combi boiler that i have a problem with. A few we... [Read more]

what could be cause of heating problem?

i have an ariston micro combi 23 mffi boiler the pressure in system keeps dropping to zero , when i refill sys... [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]

hot water problem?

baxi 105e instant. Boiler works fine by turning hot tap in the bath on. If you use Basin, kitchen hot taps the... [Read more]

Halstead Quattro - Hot water?

I have a Halstead Quattro boiler and a week I chaged the diaphram in the diverter valve and the microswitches ... [Read more]

how can i fix this problem?

I do hope somone can adise me.I have a 28 c d i rsf combi boiler.the central haeting works fine but the hot wa... [Read more]

Have an intermittent problem on a Sime 100 boiler?

Have an intermittent fault on a Sime100 boiler. Sometimes works fine other times does not work at all for hot... [Read more]

noisy boiler?

I have a potterton suprima boiloer which works well and is serviced regulaly. My problem is it is very noisy ... [Read more]

Problem with Potterton Promax HE24 Boiler?

The hot water system works ok. I have fitted a thermometer to the outlet from the boiler and this goes up to o... [Read more]

FERROLI OPTIMAX HE 31C flow sensor and water coming out the bottom!?

Hi All, New to the forum but really hoping someone can advise, We have a 5 year old OPTIMAX HE 31C boile... [Read more]

24i junior problem?

boiler hung and fitted all connections good filled and vented system and boiler .no external controls. therefo... [Read more]

ravenheat csi85 combi read this it will help many!?

I have a ravenheat csi85 boiler, the hot water works fine. The central heating started switching on /off, it w... [Read more]

wochester bosch 30si junior boiler..problem?

boiler keeps switching its self off.blue light flashes every 2to 3 seconds,red reset light constantly.....afte... [Read more]

diverter valve not operating?

Hi I am having a problem with my potterton performa 28i boiler. Central heating works fine. Dhw giving cold ... [Read more]

Baxi 105e Combi - Hot then cold water cycle?

Hi, I have a BAXI 105e Combi boiler in the house I have just brought, it was installed in 2006. I have noticed... [Read more]

Problem with Valliant VCW GB 242EH?

My boiler stopped the supply of hot water and heating. Had a plumber out who changed the diaphram and the pump... [Read more]