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We have 144 questions about mending 'unit hot water' in category Heating, Home Heating Systems which have been answered

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IDEAL HE24 NOT WORKING?

I HAVE THE ABOVE UNIT WHICH WAS SERVICED 2 MONTHS AGO AND JUST NOTICED NO HOT WATER OR HEATING, ON CHECKING TH... [Read more]
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my potterton profile 40e keeps cutting out?

I have a eighteen year old potterton 40e boiler which keeps cutting out ,when it is working the water and rad... [Read more]
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My heating will not come on, I have a Ferroli F24b... Any ideas?

I have hot water but no central heating. I have checked the output of the timer model and this is working. W... [Read more]
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Ferroli Modena 80 problems?

When I switch on my Central Heating, with the pressure at 2 bar, the system continually switches on & off for ... [Read more]
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How can I fix noise from my vaillant ecotec pro boiler?

I've drained the system to replace radiator in bathrrom. Refilled and repressurised system once job done. Air ... [Read more]
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My Potterton Prima F60 boiler keeps firing?

My potterton prima F60 boiler keeps firing when programming unit indicates both hot water and central heating ... [Read more]
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Vokera Boiler - pressure too high and hot water keeps going cold?

I have a problem with my vokera boiler (i believe compact version but not sure), over easter i noticed the ... [Read more]
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Erratic Boiler cut out (and in laws)?

So it's snowing and we have my in laws staying for Easter weekend - what's the last thing we need? A fault in ... [Read more]
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Can I run my boiler without the CH pump for Hot Water only operation?

My heating system comprises new(ish) boiler (Potterton Suprima 100), hot water cylinder (with cylinder jacket)... [Read more]
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Potterton combi 80 boiler?

I have re pressurised the expansion tank as suggested. There is no water coming from the valve on the unit nor... [Read more]
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Ferroli F24B Combi Boiler. Follow on to earlier enquiry?

Hi DC, or whoever else can help me, PLEASE? Following on from Gemma's enquiry, i too have a Ferroli F24B comb... [Read more]
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Combi Boiler - Heating but no hot water (Vokera Excell 80 SP)?

Hi, The above boiler was fitted in my house when I moved in. The problem was that the hot water temperature... [Read more]
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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]
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vokera mynute 28se pressure keeps dropping?

got vokera 28se boiler and the pressure keeps dropping ,keep on topping up system .but shouldn't have too ,fro... [Read more]
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baxi bermuda 551 cat.1n-boiler unit will not fire gc no.4407748?

i cannot get the boiler to fire when the centrel and hot water is turned on
Mend Heating, Home Heating Systems

Britony 80 Combi Boiler?

When I set the timer for the central heating to come on (manual clock) it attempts to ignite but keeps trippi... [Read more]
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siemens RWB9 controller wiring connections?

I have installed an RWB9 controller and am unsure where the wires go...the old unit had links in and the new u... [Read more]
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My Vaillant E 242 E will not egnite?

I have had a house in Spain for 6 years which has a Vaillant E 242E installed for hot water and central heatin... [Read more]
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Combi boiler-pressure low-hot water ok?

Hi, I have a Vaillant Turbomax 242/282e boiler and the pressure has dropped to 0.5. Hot water is fine from al... [Read more]
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Vokera Maxin 24e Lockout?

I am having problems with the Lockout Reset Button illuminating intermittently on my Vokera Maxin 24e, the con... [Read more]
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