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We have 73 questions about mending 'central heating works hot water cold'

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Mend Heating, Home Heating Systems

no water comes out of the hot water taps, cold water works ?

No water comes out of any of the hot water taps, the cold water taps work, the central heating also works. the... [Read more]
Mend Heating, Home Heating Systems

Central heating not working?

My glow worm micron 50FF works for a short time then shuts down and both lights go out. Neither of the two lig... [Read more]
Mend Heating, Home Heating Systems

Ferroli Hawk 2 - Air Pressure switch?

There are two flexible pipes connected to the Air pressure switch(APS). Top one clear, bottom one red. Cent... [Read more]
Mend D.I.Y, Plumbing

no domestic hot water?

baxi 105he central heating works ok, but when taps are turned on all red lights go out and water goes cold i h... [Read more]
Mend Heating, Home Heating Systems

Vokera boiler problem?

Central heating works fine but the hot water is a nightmare, can start hot but then runs cold I may be mistake... [Read more]
Mend Heating, Home Heating Systems

I have a greenstar 25cdi gas condensing boiler. ?

The hot water temperature is'nt always getting hot. Never cold but sometimes lukewarm , sometimes hot? The c... [Read more]
Mend Heating, Home Heating Systems

'f19' error report - Saunier Duval 'Thermoclassic' boiler?

Recently my boiler is failing to deliver hot water. - It is hot at first then runs cold. On examination I fin... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Saunier Duval Semia Condens boiler?

The Central Heating (CH) side works perfectly but the Domestic Hot Water (DHW) has developed a problem, thus..... [Read more]
Mend Heating, Home Heating Systems

why have i no hot water?

When i turn the hot water tap on the water is constantly cold. But when i put the central heating on the valve... [Read more]
Mend Heating, Home Heating Systems

diverter valve not operating?

Hi I am having a problem with my potterton performa 28i boiler. Central heating works fine. Dhw giving cold ... [Read more]
Mend Heating, Home Heating Systems

Baxi 105e Combi - Hot then cold water cycle?

Hi, I have a BAXI 105e Combi boiler in the house I have just brought, it was installed in 2006. I have noticed... [Read more]
Mend Heating, Home Heating Systems

no hot water during freezing weather conditions?

we have an ideal response 120 combi boiler. During freezing weather conditions we do not get any water at all... [Read more]
Mend Heating, Home Heating Systems

hot water?

I have a Ariston a/23 type C boiler The central heating works o/k when i turn hot tap on I only get cold w... [Read more]
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