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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 31c

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We have 87 questions about mending 'ferroli optimax 31c'

How to mend Ferroli Optimax 31c

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Mend start 45 minutes

How fix whining on ferrolli optimax 31c?

Why does ferrolli optimax 31c start whining after heating been on about 45 minutes. The control also shows a d... [Read more]

Mend ferroli optimax boiler help

ferroli optimax he plus 31 c?

my boiler is flashing o 01 please help

Mend heating radiators heat hot water

Ferroli Optimax HE 31C not heating radiators?

Ferroli Optimax HE31C won't heat the radiators. Hot water function is working fine. There are no error message... [Read more]

Mend ferroli optimax 31c

Ferroli Optimax 31c?

Our boiler has a "no cn" symbol appearing on the clock counter and won't turn on. There is gas within the hou... [Read more]

Mend boiler optimax he 31c plus

Is there a difference between the Optimax HE 31C and the HE PLUS 31C ?

What is the difference between the Ferroli Optimax HE 31C and the one supplied by Wickes (HE PLUS 31C) ..... i... [Read more]

Mend boiler wont work

boiler wont work ?

my boiler wont work its a ferroli optimax he plus 31 c it just flashes f 40 on the screen what is this? nothin... [Read more]

Mend he 31c start

My Ferroli Optimax HE 31c wont start?

The fault diagnostics says "no cn", do you know what this means as there is nothing in the manual.

Mend ferroli optimax 31c

ferroli optimax he 31c boiler?

hi i'm trying to work the timed c/h how do i do this please.

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High noise on Ferroli optimax HE 31c?

When the boiler runs in a low fire, it's make a high vibrating noise for 1 minute, then it's working ok, but w... [Read more]

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hot water problem?

my ferroli optimax he 31c is taking obout 3minutes to deliver hot water to taps. it is struggling to reach pre... [Read more]

Mend heating home heating boiler help

i cont get gch working ?

i cant get my gch working i av a ferrroli optimax he plus 31c can u help

Mend hot water heating call

ferroli optimax he 31c?

My hot water was cutting out heating then had to call out cause no heating at all only hot water !

Mend boiler water correctly

Boiler not heating water correctly?

I have a Ferroli Optimax HE 31c Combi-Boiler, since it has been installed the boiler has not heated the water ... [Read more]

Mend ferroli optimax 31c

Ferroli Optimax HE 31C boiler manual?

Where can I obtain a Ferroli Optimax HE 31C manual as I desperately need one

Mend ferroli optimax he 31c

Ferroli optimax HE 31c?

My question is same as geoff from august 09. boiler has stopped working , no error codes, will not reset and t... [Read more]

Mend boiler ferroli optimax

what does this code mean?

My boiler (ferroli optimax HE 31c) isnt working but has thid code that looks like NO CA,anyone any ideas? the ... [Read more]

Mend heating times combi

home heating?

could you please tell me how to set the time for the heating to come on and go off at different times of the d... [Read more]

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How can I reduce the water pressure on my Ferroli Optimax HE 31C?

I Currently I have an F40 fault which is too high water pressure (just under 3 bar)....how can i reduce the wa... [Read more]

Mend boiler heating pressure

Ferroli Optimax HE 31C?

The pressure in my boiler has dropped to below 1 and the heating has cut out. Have tried filling the system us... [Read more]

Mend boiler heating ferroli

Ferroli Optimax HE 31 c boiler serial number?

Where can i find the serial number to my Ferroli Optimax HE 31C boiler? Thanks.

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Ferroli DOMIcompact F 30 D?

Mend repair code help

How can i repair a noCN fault on my boiler?

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F40 fault?

Mend Heating, Home Heating Systems

Ferolli Optimax HE 31C expansion vessel change?

Mend water pressure ferroli

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

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Parts for ferroli optimax he 31c ?

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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 ferroli optimax system

Ferroli Optimax HE31c a26 problem?

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