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Mend 30 boiler fire flashing
2

Worcester 30 Cadillac combi boiler won’t fire up and the EA?

my worcester 30 cdi combi combi boiler wont fire up and ''ea'' keeps flashing? my worcester 30 cdi combi bo... [Read more]
Mend Heating, Home Heating Systems
1

Greenstar 24Ri boiler, fast flashing - can I reset?

Greenstar 24Ri boiler won't light and the blue light is fast flashing. From the manual I can see that the iss... [Read more]
Mend Heating, Home Heating Systems
1

Oil fired boiler thermostat?

I have a Velaire 110/135 oil fired domestic boiler. I think the boiler thermostat may be faulty. The manual sa... [Read more]
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Mend Ferroli He

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We have 218 questions about mending 'ferroli he' in category Heating, Home Heating Systems

How to mend Ferroli He

Pages 109876
Mend optimax hot set
1

ferroli optimax HE 31 C code d2? whats it mean??

ferroli optimax HE 31 C code d2? whats it mean?? gets that hot only got it set at 19 see it upto24, turn it o... [Read more]
Mend boiler fault code heating
1

Ferroli fault code A62?

My boiler is a Ferroli Optimax HE Plus 38C. It stopped working last night and is displaying fault code A62 whi... [Read more]
Mend boiler working display
1

please tell me how to fix my fault with boiler?

i have a ferroli optimax he plus 31 c boiler and its not working and its bringing up a A1 fault on display. C... [Read more]
Mend boiler heating system pressure ferroli
1

how to fill my system?

how do you fill the system on a ferroli optimax he plus 31 c boiler.F 37 is flashing and it tells to fill up s... [Read more]
Mend sensor water coming
1

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]
Mend ferroli optimax he heating
2

Ferroli optimax HE pluss 31c?

Fault f47 flashing ? can anyone help
Mend pressure he vessel
1

what pressure is ferroli optimax he 18s expansion vessel?

owhat pressure is ferroli optimax he 18s expansion vesselptimax he 18s
Mend optimax he plus 31 c boiler
4

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 ferroli boiler coming

how can fix my ferroli he 26 c boiler?

the fault code A01 keeps coming on, but if i unplug it between uses it is ok thanks
Mend flow flashing fault

How do you change a flow sensor on a ferroli Optimax HE plus 31C Boiler?

We have a Ferroli Optimax He Plus 31C boiler and it keep Flashing a F14 fault which according to the manual is... [Read more]
Mend boiler problems water
1

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 pressure ferroli turn
1

how do i put air pressure into my ferroli bolier model optimax he 31 c ?

i need to know how to put air pressure into my ferroli bolier model optimax he 31 c. i need to know which valv... [Read more]
Mend Heating, Home Heating Systems

boiler?

hi i av a ferroli optimax he c31 boiler and its not workin keeps flashin f 35 and sumtimes f 11 an engineer ... [Read more]
Mend runs hot cold

Ferroli 38 HC/Heat Exchanger?

DHW Run's hot and then goes cold? I have a Ferroli Opimax HE 38C 4 years old, When I turn ON DHW run's hot a... [Read more]
Mend Heating, Home Heating Systems

Fault Code A42 - not in manual?

I have a Ferroli Optimax HE plus C (38kW) which has locked out showing fault code A42. This code is not liste... [Read more]
Mend optimax boiler pressure
1

overflow continually dripping on Ferroli Optimax HE 31 C?

we keep having to top up the boiler as its losing pressure and the fault '37' comes up but the overflow is con... [Read more]
Mend ferroli 31c he
2

how can i fix ferroli 31c he?

I have ferroli optimax 31c he. the problem occured all of a sudden.The front screen on the front of the boiler... [Read more]
Mend ch hw help
1

CH but no HW Ferroli he 38c?

CH but no HW. No error codes HELP
Mend central heating problem
1

central heating problem?

how do you alter the water pressure on my ferroli optimax he plus 31 c boiler
Mend central heating problem
1

central heating problem?

how do you alter the water pressure on a ferroli optimax he plus 31 c condensing combination boiler
Pages 109876

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Mend water pressure ferroli

Hi how to increase the water pressure on ferroli optimax 25C?
Mend ferroli optimax system

Ferroli Optimax HE31c a26 problem?
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Replace a diverter valve?
Mend combi radiators problem

i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?
Mend Heating, Home Heating Systems

Ferolli Optimax HE 31C expansion vessel change?
Mend water coming pump

Ferroli DOMIcompact F 30 D?
Mend ferroli optimax he

Parts for ferroli optimax he 31c ?
Mend repair code help

How can i repair a noCN fault on my boiler?
Mend boiler showing ferroli

F40 fault?

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