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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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Vaillant ecotec 831 plus?

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 Boiler Ferroli Optima Water

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We have 37 questions about mending 'boiler ferroli optima water' in category Heating, Home Heating Systems which have been answered

How to mend ... Boiler Ferroli Optima Water

Pages 21
Mend Heating, Home Heating Systems

How do I stop water from flowing outside from my ferroli optima 901 boiler?

Pressure bar is constantly at 3. If I drain radiators, pressure reduces but then creeps back up again. I have ... [Read more]
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ferroli optima 901 c/heating problem?

heating will not come on but hot water ok. pump runs. boiler fires up when stone cold for c/h eventually but w... [Read more]
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The hot water sensor on ferroli Optima 901 keeps needing to be replaced?

I have had to replace the hot water and also heating sensor on our Ferroli Optima 901 combi boiler several tim... [Read more]
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How can I fix the problem of boiler pressure?

Re: Ferroli Optima 701 As soon as I top-up water level to Bar 2, the pressure keeps dropping and then the b... [Read more]
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how can i fix my ferroli optima 701 combi-boiler?

central heating working . no hot water on hot water only having changed flow meter
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Ferroli Optima 701 boiler will not fill with water?

The pressure on my boiler dropped suddenly to zero. Opened the tap and refilled to 1.1 and then shut of the in... [Read more]
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how can i fix my fan?

my fan has seized on my Optima Ferroli boiler, i have no hot water or central heating... is there a way i coul... [Read more]
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fault diagnosis?

my ferroli optima boiler has stopped working hot water is fine but sometimes heating will not fire upone night... [Read more]
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delay in hot water?

I have a Ferroli Optima 701 combi boiler. When I run the hot tap there is a delay of up to 2 mins before the ... [Read more]
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What is wrong with my boiler?

Hi, I have a Ferroli Optima boiler (not sure of the exact model) controlling my heating and hot water. For th... [Read more]
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FERROLI OPTIMA BOILER?

I have a ferroli optima 901 boiler which i am experiencing problems with. I have recently changed a radiator a... [Read more]
Mend Heating, Home Heating Systems

fault on ferroli optima 701?

ferroli boiler. i cant get fan to run at full speed when calling for heat or hot water. and the only way to ge... [Read more]
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Where is the isolation valve?

I have a ferroli optima 700. I recently had a leak which stopped my boiler from working completely (no hot wa... [Read more]
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hot water problem?

when i turn on my hot water tap or shower the water is cloudy. the boiler i have is a optima ferroli combi any... [Read more]
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ferroli optima boiler?

loses pressure water dripping from pipe boiler to outside
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ferroli optima?

My shower is connected to the boiler direct but the water temperture fluxuates very hot to very cold. Note thi... [Read more]
Mend Heating, Home Heating Systems

Ferroli 701 losing pressure and leaking?

Hi, I wonder if there is a simple solution to the following problem: The Ferroli Optima 701 loses pressure ... [Read more]
Pages 21
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F40 fault?
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Parts for ferroli optimax he 31c ?
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Ferroli DOMIcompact F 30 D?
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Hi how to increase the water pressure on ferroli optimax 25C?
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Replace a diverter valve?
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ferroli plus 31c has a code b2 any ideas?
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How can i repair a noCN fault on my boiler?
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Ferroli Optimax HE31c a26 problem?
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i have a ferroli combi boiler i have 1/2 the radiators working and 1/2 not ?

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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