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We have 529 questions about mending 'hot works boiler fine'

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Mend Heating, Home Heating Systems

Worcester bosch 2.8i junior, cuts out with red flashing light?

My boiler has been working ok through the summer, heating hot water on demand, but now its getting time to put... [Read more]
Mend Heating, Home Heating Systems

Remeha Avanta Plus not not activating heating?

I have just moved in to a new property with an Avanta Plus Combi Boiler. It works fine for heating the Hot Wat... [Read more]
Mend Heating, Home Heating Systems

Vokera Boiler, Heating Working But No Hot Water?

We have a Vokera Maxin 28E boiler. The central heating works fine and the boiler lights every time. However re... [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

Why has Heat Exchanger on IDEAL ISAR HE24 gone?

So... At the end of 2008 (early December, so about 4.5 years ago). We had central heating installed for the... [Read more]
Mend Heating, Home Heating Systems

why does the pump keep running when I turn the hot tap off?

My Vaillant combi boiler VCWE 240 works fine with the heating, but when I use the hot water, it doesn't switch... [Read more]
Mend Heating, Home Heating Systems

voera linea max sometimes not igniting in hot water mode?

my boiler sometimes does not ignite in hot water mode when i reset it ,it works ok for a while then fails to i... [Read more]
Mend Heating, Home Heating Systems

isar he30 boiler problem?

NO central heating working, hot water works fine but no GCS ? Any help would be great thanks.
Mend Heating, Home Heating Systems

how to fix my Vaillant ecotec plus 824?

My boiler is flashing con on display as I have had a rubber pipe split. I have tried hair dryer for 1/2 hour ... [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

no heating on sime format 80?

my sime boiler works fine for hot water but not for c/h. At first only c/h worked but since it was sorted so h... [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

Ariston ecombi 30 problem?

My combi boiler works fine but hot water goes cool every 3-4 minutes for about 10 secs and then goes back to t... [Read more]
Mend Heating, Home Heating Systems

I have a modena 80e no central heating but hot water works?

Hi my hot water is working fine but when I try to put the central heating on the boiler does not fire up, is t... [Read more]
Mend Heating, Home Heating Systems

halstead boiler problem?

my cbx boiler has stopped changing between c.heating and hot water.there isnt a diaphragm,but an electric moto... [Read more]
Mend Heating, Home Heating Systems

sime combi ?

i have sime ecomefort H.E it is 12 months old i have no central heating connected i only run hot water fro... [Read more]
Mend Heating, Home Heating Systems

valient turbomax 242eh central heating will not operate once it reaches tem?

242 eh installed with 3 rads the boiler works fine in hot water when in ch and hot water mode ch reaches temp ... [Read more]
Mend Heating, Home Heating Systems

Central Heating works but no hot water? Worcester 28i RSF?

Hi I hope someone can help. I have a Worcester 28i RSF Combi boiler that i have a problem with. A few we... [Read more]
Mend Heating, Home Heating Systems

what could be cause of heating problem?

i have an ariston micro combi 23 mffi boiler the pressure in system keeps dropping to zero , when i refill sys... [Read more]
Mend Heating, Home Heating Systems

how can i fix my biasi combi boiler ?

heating works fine but in hot water mode boiler does not fire up

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