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We have 225 questions about mending 'main boiler hot'

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Mend Heating, Home Heating Systems

why is my boiler on constantly?

my main medway boiler is permanently on even when no taps are on calling for hot water? I have turned it off f... [Read more]
Mend Heating, Home Heating Systems

ALPHA CB 24X COMBI?

Now the heating is swithced off & the setting is for hot water only , the boiler started to turn the heating o... [Read more]
Mend Heating, Home Heating Systems

Worcester Greenstar 28i Junior stops working?

Hi all I just bought a new house and the previous owner installed the Worcester Greenstar 28i Junior. I went ... [Read more]
Mend Heating, Home Heating Systems

Having problems with Vokera 28 linea boiler - hot water off and on?

My problem is that my vokera 28 linea boiler is playing up. When you put on the hot tap the water comes out ve... [Read more]
Mend Heating, Home Heating Systems

how to fix low hot water pressure on a combi bolier?

new wochester boiler,but cold main coming into the house is low,so the hot water pressure on the boiler is low... [Read more]
Mend Heating, Home Heating Systems

Baxi Bahama 100 - Hot water problem?

Hi there to anyone who can possibly help me with the above problem. The boiler works fine for central heati... [Read more]
Mend Heating, Home Heating Systems

Sime 90 slow start?

My boiler was serviced last December and was working normally. Now it takes up to a minute to ignite when hot... [Read more]
Mend Heating, Home Heating Systems

Gas valve failing to open on ferroli domicompact f24b?

My boiler has been working fine, used it last night before bed with no problems or noises. Woke this morning ... [Read more]
Mend Heating, Home Heating Systems

baxi 105e not changing over to central heating?

boiler appears to be stuck on hot water even though central heating his selected and time clock and thermostat... [Read more]
Mend Heating, Home Heating Systems

how can i fix my glow worm 30 cxi?

Hi, I have a glow worm 30cxi boiler and have a problem that hopefully someone can help with. The problem... [Read more]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

How can i fix my combi boiler, Vokera excell, 80 SP?

The boilers pilot light works but the motorised valve allowing the main gas in does not open for heating or ho... [Read more]
Mend Heating, Home Heating Systems

baxi 105e combi boiler pump over run always on?

the pump will always run on a demend condition even though the heating or hot water is still off.I was wonderi... [Read more]
Mend Heating, Home Heating Systems

main medway hot water boiler?

my pilot light on my boiler stay lit until i turn the tap on and then after a few seconds of running it all go... [Read more]
Mend Heating, Home Heating Systems

glowworm economy plus Ep40B?

have replaced thermo couple and pilot feed pipe to boiler but gas pilot light will not stay lit for main gas t... [Read more]
Mend Heating, Home Heating Systems

expansion tank overflowing?

I have an overflow pipe dripping at the back of my house, on investigation, there is hot water coming into the... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Ravenheat timer?

I have a Ravenheat boiler and the heating won't work. The hot water is operating fine but when I use the timer... [Read more]
Mend Heating, Home Heating Systems

Problem with Vaillant TurboMax VUW 242E, fan/boiler not running?

My boiler had divertor valve problem in past, plumber replaced it for a reconditioned one-it lasted about 2 mo... [Read more]
Mend Heating, Home Heating Systems

Why doesn't my worcester 350 give hot water?

I have a worcester 350 combi boiler and programmer. It recently decided to stop delivering hot water. When a h... [Read more]
Mend Heating, Home Heating Systems

Sabre 24 Combi boiler problem?

With the filling loop removed on my 18 month old SABRE 24 combi the pressure gauge on the heating circuit cont... [Read more]
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