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We have 193 questions about mending 'central heating air'

How to mend ... Central Heating Air

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Mend Heating, Home Heating Systems

my vokera 726 is losing water pressure when the central heating is turned?

what air pressure is required in the expansion vessel
Mend Heating, Home Heating Systems

Why is my central heating blowing cold air?

I moved into a newly built home in 2007 and have been having problems with my central air and heating system ... [Read more]
Mend Heating, Home Heating Systems

Ferroli modena 102 not firing up properly?

My boiler has been temperamental for some time, so my water goes from hot to cold & back, now the central heat... [Read more]
Mend Heating, Home Heating Systems

Rayburn Driven Central Heating Problem - Upstairs Cold?

I have a Rayburn Gas CH system with a seperate pump. The cooker / boiler is in the basement kitchen with 3 ra... [Read more]
Mend D.I.Y, Plumbing

ravenheat whitestar LS80T?

Hi I have a Ravenheat whitestar LS80T and I have no central heating but still have hot runing water, if i turn... [Read more]
Mend Heating, Home Heating Systems

Have ii been ripped off? Central heating stopped working?

Can anyone set my mind at rest? We had a gas leak on our gas fire and called the emergency gas people. They ca... [Read more]
Mend Heating, Home Heating Systems

Worcester 24i Junior - Only stays on for 5 Secs?

Further to my post about the melted water flow switch filter, the boiler fires up but only stays on for 5 seco... [Read more]
Mend Heating, Home Heating Systems

Radiators are cold at the top?

two radiators are cold at the top part upstairs. I have tried bleeding them but no air is coming out. The brea... [Read more]
Mend Heating, Home Heating Systems

Sime super 90 burner problem?

if you turn on the hot tap on the pilot light clicks burner fires etc all works as it should hot water central... [Read more]
Mend Heating, Home Heating Systems

How can I fix a flashing "l e" fault on my isar he35 boiler?

I worked on the radiator system over the summer and when the time came for central heating the boiler tripper ... [Read more]
Mend Heating, Home Heating Systems

How do I fix an Ideal Classic LX Boiler?

Turned off the mains water to fit an electric shower. Since then the boiler will heat my hot water but the cen... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCWGB242EH GC 4704413 Combi goes out immedi?

Hi, am working on the above boiler, was leaking at the auto air vent so tested the expansion vessel to find it... [Read more]
Mend Heating, Home Heating Systems

Why does my Bosch Worcester 24 CDi keep repressurising itself?

My bolier keeps repressurising itself slowly through use. I can't use my central heating as the PRV has broke ... [Read more]
Mend Heating, Convector Heaters

my sime boiler is heating water ok but the central heating part wont start?

the central heating part of boiler wont fire up. the room thermostat appears ok.theres a expansion tank on rea... [Read more]
Mend Heating, Home Heating Systems

how can i fix my ferroli modena 80e ?

modena 80e central heating circuit once operated turns off heating within two min. with gurgling noises from b... [Read more]
Mend D.I.Y, Plumbing

Central Heating Not Firing Up?

My Ravenheat Combi Boiler is not firing up on the CH - the hot water works fine. I have checked the room stat ... [Read more]
Mend Heating, Home Heating Systems

baxi 105 combi cold showers?

I don't know if this is a problem with my boiler or somewhere else. Our boiler works okay with the central hea... [Read more]
Mend D.I.Y, Plumbing

No Hot Water At All?

Hi, I am having problems with my hot water - both central heating and hot water from the taps. The water from ... [Read more]
Mend Heating, Home Heating Systems

Radiator is only partly warm?

Hello. One of our radiators is warm at the bottom half and cool at the top. Does that mean there is an air ... [Read more]
Mend Heating, Home Heating Systems

Worcester Greenstar Junior 24i intermittently firing up and turning off?

I have a 2.5 year old Worcester Bosch Greenstar Junior 24i boiler. When I turn on the hot water or central hea... [Read more]
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