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Vaillant timeswitch 150 analogue unit (clock stopped?

vaillant timeswitch 150 analogue unit. the clock has stopped working.
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Worcester boiler dripping water?

Worcester boiler dripping water, can I just tight the screw? The icon next to the valve looks like radiators... [Read more]
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Following a F22 fault where we had no heating and only cold water from the hot water tap, I topped up the syst... [Read more]
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Mend Ferroli Optimax He31c

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We have 17 questions about mending 'ferroli optimax he31c' in category Heating, Home Heating Systems which have been answered

How to mend ... Ferroli Optimax He31c

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Ferroli Optimax HE31c a26 problem?

I'm having A pressure issue. The system pressure will increase to over 2-3bar and shut off from a starting pos... [Read more]
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what is the a62 fault code?

what is the a62 fault code on a ferroli optimax he31c boiler please?
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ferroli optimax plus he31c?

Ican get central heating but no hot water the boiler is firing up when hot water is demande but cold is coming... [Read more]
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ferroli optimax HE31C the digital display is saying 'no CN''? ?

We have no hot water or central heating, no other error code is displayed. I've turned off at the mains, press... [Read more]
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ferroli he31c?

how to fix fault f35 on ferroli optimax he31c
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How to remove Ferroli optimax HE31C casing?

Undone two screws but cant lift casing. says in manual to fold down flap B but cant see anything. going to get... [Read more]
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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]
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ferroli optimax he31c?

Drained my radiators and pressure dropped. Dont know how to fill the system again. What and where is the heati... [Read more]
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my boiler is a ferroli optimax he31c ?

it is saying no cn what is this and how can i fix it
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i have a ferroliu optimax he31c boiler and i cant get hot water has the pil?

i have a ferroli optimax he31c b oiler and i cant get hot water, would the pilot light have gone out, if so ho... [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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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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what should do ferroli optimax he31c boiler ?

what dose fh mean an do they have timers with them because i have just moved in and it has not got one
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Thermostat connections?

How do I connect my Drayton Digistat 2RF to my Ferroli Optimax HE31C boiler?
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What is F15?

We have lost our manual for the ferroli optimax he31c and are having problems (eg nothing working). It is comi... [Read more]
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Ferroli Optimax HE31c - What is fault code F12?

Ferroli say there is no such fault code, either I'm going blind and the manual just leaps for fun from F11 to ... [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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F40 fault?
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Ferroli Optimax HE31c a26 problem?
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Replace a diverter valve?
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Hi how to increase the water pressure on ferroli optimax 25C?
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How can i repair a noCN fault on my boiler?
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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?
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Parts for ferroli optimax he 31c ?
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ferroli plus 31c has a code b2 any ideas?

How to mend ...

Mend Baxi Mend Bosch Mend Boulter Mend Britony Mend Dimplex Mend Drayton Mend Ferroli Mend Halstead Mend Heatline Mend Potterton Mend Remeha Mend Siemens Mend Switchmaster Mend Vaillant Mend Vokera Mend Worcester

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