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We have 79 questions about mending 'water ferroli optimax boiler'

How to mend ... Water Ferroli Optimax Boiler

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Mend Heating, Home Heating Systems

ferroli optimax pressure problems?

water pressure at 1 bar heating comes on creeps up to above 3 release some pressure when heating off boiler co... [Read more]
Mend Heating, Home Heating Systems

Ferrolli Optimax 25s boiler broken?

Hi - don't know if anyone can help? No heating or hot water for a few days now, awaiting an engineer who we... [Read more]
Mend Heating, Home Heating Systems

Ferroli Optimax HE Plus 31 C Boiler noise?

It is making a humming noise that makes you feel like you have tinitus. It only makes the noise when the radi... [Read more]
Mend Heating, Home Heating Systems

how can i fix ferroli optimax he=38c boiler?

boiler has run with no problems for about six months now have problem with pressure dropping. have added water... [Read more]
Mend Heating, Home Heating Systems

central heating problem?

how do you alter the water pressure on my ferroli optimax he plus 31 c boiler
Mend Heating, Home Heating Systems

central heating problem?

how do you alter the water pressure on a ferroli optimax he plus 31 c condensing combination boiler
Mend Heating, Home Heating Systems

no heating from ferroli boiler?

I have a ferroli optimax he 31c. the hot water works fine but this morning the heating will not come on. the... [Read more]
Mend Heating, Home Heating Systems

Ferroli Optimax - no hot water ?

Hi, I hope someone can help me. I have had no hot water or heating for over 5 weeks. I have boiler cover thro... [Read more]
Mend Heating, Home Heating Systems

How can I fix my ferroli optimax he 38c boiler, it keeps saying A1?

My boiler keeps saying A1 and my heating and hot water is now off?
Mend Heating, Home Heating Systems

how to fix d1 error on a ferroli optimax he 31c boiler?

d1 error message keeps coming up after running hot water on a ferroli optimax he 31c boiler
Mend Heating, Home Heating Systems

ferroli optimax 38c boiler?

I have a ferrroli optimax 38c central heating boiler just a few weeks old.In fitting new washers to my taps i ... [Read more]
Mend Heating, Home Heating Systems

how can i fix frozen pipes?

my ferroli boiler keeps flashing f01 it is an optimax 25 OV and there is water in the boiler are the pipes fro... [Read more]
Mend Heating, Home Heating Systems

Ferroli Optimax 31c?

I have spilt water on the room thermostat, and the heating is off. Is there any way I can set it on the boiler... [Read more]
Mend Heating, Home Heating Systems

Ferroli optimax he 38 c filling kit connections?

I topped up the water on my boiler, but think I have moved one or more of the other 3 "taps" that make up the ... [Read more]
Mend Heating, Home Heating Systems

Ferroli Optimax He 31C Combi fault?

Hi, I have a Ferroli Optimax He 31C Combi gas boiler. In the morning it regularly locks out on a F03 code eve... [Read more]
Mend Heating, Home Heating Systems

how do i fix my broken boiler?

I have a Ferroli optimax 25 c boiler, it has stopped working and showing fault code F37. The manual say thi... [Read more]
Mend Heating, Home Heating Systems

i have a faulty boiler can you help?

ferroli optimax 31he. hot water ok but heating comes on and only stays on for only 8 mins. have renewed divert... [Read more]
Mend Heating, Home Heating Systems

How can i get rid of the squeeling sound from ferroli optimax he31?

whenever the boiler starts or the heating is on, the boiler makes a squeeling sound. only get rid of it by swi... [Read more]
Mend Heating, Home Heating Systems

how do i get my ferroli optimax he 31 c boiler?

i have pressed the reset button on my boiler and now my radiators work but i have no hot water, can anyone hel... [Read more]
Mend Heating, Home Heating Systems

Ferroli Optimax He Plus 38C hot water works but heating dosent?

I have a Feroli optimax he plus 38c boiler. I have replaced the room theromastat as the old one was the wrong ... [Read more]
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