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Power of USB C chargers?

How can I tell which of my USB C chargers is the most powerful? Is it as simple as 65W is better than 30W? I... [Read more]

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Mend Ferroli Optimax Boiler Help

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We have 53 questions about mending 'ferroli optimax boiler help'

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Mend ferroli hot water works heating

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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ferroli optimax 25c?

no hot water turn on tap 3 way valve gos to heating and pump stops boiler gos off 03 fault .put 3 way valve to... [Read more]

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pcb on the ferroli optimax he31c?

i have changed the pcb on the ferroli he31c and a new code has to be entered into boiler before the boiler wil... [Read more]

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My ferolli optimax boiler H E 31 suddenly stopped working?

my water pressure continually drops so i turn it back up and it works again, but this time it won't come back ... [Read more]

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Ferroli Optimax 25C Boiler temperature help?

I have a Ferroli Optimax 25C Boiler. When it gets up to temperature, it automatically turns off but will ... [Read more]

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F40 on ferroli optimax he 31 boiler?

I'm in a rented property with prepaid gas meter. My gas supply ran out and I found a error code A01 in my Ferr... [Read more]

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Ferroli Optimax HE 31 C, how do I put water pressure up?

Boiler is 4 weeks old and the water pressure is too low and I now have no heating. Does anyone have any idea ... [Read more]

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Any Solution?

Ferroli Optimax HE Plus 31C - fitter installed yesterday but getting the following code display - d2 followed ... [Read more]

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ferroli optimax he 31 c?

hello, silly question - how on earth do i fill my boiler to increase pressure? i have tried turning the blu... [Read more]

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Optimax HE 31C Combi boiler, Hot water but no Heating?

I have a Ferroli Optimax HE 31C combi boiler for a year now, I just noticed yesterday that when I turn the dia... [Read more]

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Fault code 'A02' with my Ferroli Optimax HE Boiler?

I have a continued problem with my boiler that just won't go away! About once a week the heating & hot water g... [Read more]

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ferroli optimax he31c?

help my daughters hot water won,t work the radiators are ok, it is quite a new boiler, but she has no instruct... [Read more]

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No display on Ferroli Optimax HE 31 C control panel why?

Please help. The control panel has some lines on it (power is on) but no symbols at all - no fault codes, no p... [Read more]

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Ferolli Optimax 25 c F33?

Chaps, help, boiler has packed up and flashing the fault code F33 which is mighty useless as the manual does n... [Read more]

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ferrolli optimax 25c?

ferroli optimax 25c i have no hot water and no ch code f3, now is it, the diverting valve ?how can i check it ... [Read more]

Mend ferroli he31c boiler

Ferroli Optimax HE31C repeated A3 fault?

Hi, Has anyone had any experience with the Ferroli Optimax HE31C combi boiler? We recently had one install... [Read more]

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Ferroli optimax 25c boiler not working !?

The boiler (ferroili optimax 25c) in the house which i'm renting has stopped working christmas day i've no hot... [Read more]

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Noisy Ferroli Combination Boiler?

PLEASE HELP! WE HAVE A VERY NOISY OPTIMAX 31 COMBINATION BOILER. IT MAKES A THUDDING SOUND WHEN IT REACHES TE... [Read more]

Mend ferroli boiler code help

We have an ferroli optimax boiler and code F37?

Can you please help we have looked at the instruction book and we brought water pressure back to 1.5 bar all... [Read more]

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How can i fix my ferroli optimax combi boiler ( he31c )?

Hi, i have just moved into a property that has had a new boiler fitted, its a combi boiler ferroli optimax he3... [Read more]

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Mend combi radiators problem

i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?

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Ferroli DOMIcompact F 30 D?

Mend repair code help

How can i repair a noCN fault on my boiler?

Mend water pressure ferroli

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

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F40 fault?

Mend Heating, Home Heating Systems

Ferolli Optimax HE 31C expansion vessel change?

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Ferroli Optimax HE31c a26 problem?

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Parts for ferroli optimax he 31c ?

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Replace a diverter valve?

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