How to mend ... Boiler Running Cold

Potterton Suprima Boiler 50 goes to lock out?

when cold boiler fires straight away- After it has been running 1/2 hr or so and is hot .if it is switched of ... [Read more]

Mira 415 shower runs hot and cold whilst in use?

Hi, my Mira 415 shower runs hot and cold whilst in use. I have replaced the cartridge thinking this was the i... [Read more]

Remaha Avanta fires up spuriously when no demand for water or heat,?

Boiler fires up for about one minute when there is no demand for hot water or heating. Cold water is not runni... [Read more]

shower goes cold whilst useing?

I have a 23 cdi combi. my shower keeps running cold when I use it. it can happen about 3 time during a shower... [Read more]

Worcester green star Ri blue light flashing?

Hi, had someone look when the boiler would not come on at all, they said main Pcb and transformer. I have repl... [Read more]

Ferroli Modena 80E constantly running?

Hi Guys Bit of an odd one - my Ferroli Modena 80E boiler just started running last week of its own accord. ... [Read more]

Ferroli Modena 80E cycling on and off?

Hi Guys Bit of an odd one - my Ferroli Modena 80E boiler just started running last week of its own accord. ... [Read more]

Worcester boiler 35CDi?

What can be wrong with my boiler? I first noticed a problem when my shower began running hot then cold, hot th... [Read more]

Why is the pressure on my Ariston boiler rising to nearly 4 Bar?

Hi Can anyone please advise me on why my Ariston Eurcombi A/27 MFFI pressure is rising from just over 1 Bar... [Read more]

Baxi Solo 3 PFL 50 gas boiler - Pilot light keeps turning off?

This just started tonight — Baxi Solo 3 PFL 50 gas boiler was running fine but then we noticed the radiators... [Read more]

Baxi Duo tec boiler, hot water but not from one tap?

I have the above bolier, all the hot water taps in the house are running hot except the bath tap which is cold... [Read more]

shower running hot then cold?

my heating system is run by a worcester 24i rsf boiler which is 12 years old. we have it serviced every year ... [Read more]

Vokera boiler problem?

Central heating works fine but the hot water is a nightmare, can start hot but then runs cold I may be mistake... [Read more]

glow worm compact 100e hot water problems?

I have hot water problems on my boiler, two days ago hot water stopped working. Found one fault which was dome... [Read more]

How can I get rid of trapped air in central heating system?

After replacing the small rubber seal on the shaft of the hydraulic actuator in my BIASI 24S Combi boiler, the... [Read more]

potterton performa 24 ?

my boiler keeps fireing up then going off within seconds when heating is on it does get radiators hot but same... [Read more]

Boiler fails to start when cold?

Have got a vokera maxin 28e boiler which has been moved from kitchen into garage however now when cold it fail... [Read more]

Greenstar CDi combi boiler overheating?

Hi, Greenstar CDi combi boiler 3 years old. Top floor radiators cold so bled, this dropped water pressure to z... [Read more]

Glowworm 330+ boiler starts up at night?

The boiler starts up at night despite both system controls being set to off and it not being cold enough for t... [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]