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We have 181 questions about mending 'high hot water heating'

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Mend Heating, Home Heating Systems

Gas is not igniting in the small see thru window whilst both CH & water on?

Any suggestions how to fix my glow worm bolier that the gas is not igniting whilst central Heating & Hot water... [Read more]
Mend Heating, Home Heating Systems

How can we fix our Halstead High Ace Combi boiler?

We have been having problems with our combi boiler. We have flushed the system out and it worked for a few day... [Read more]
Mend Heating, Home Heating Systems

pressure on vaillant ecotec pro28 boiler?

I have a vaillant ecotec po 28 boiler in my new home, which produces gallons of hot water, but as son as I tur... [Read more]
Mend Heating, Home Heating Systems

Worcester Bosch 240 RSF not firing?

Worcester Bosch 240RSF combi boiler. Soft water, high mains pressure. Here's the problem: I had replaced th... [Read more]
Mend Heating, Home Heating Systems

Worcester Bosch 24i RSF - pressure bar too high?

hi i have a Worcester Bosch 24i RSF boiler and pressure bar is about 3-3.5 bars now. it usually was about 1... [Read more]
Mend Heating, Home Heating Systems

Boiler firing up when not on cycle?

I have what looks like a fairly old-fashioned heating system. There is a gas back boiler behind the fire in th... [Read more]
Mend Heating, Home Heating Systems

Pressure Loss?

Have a 28CDi Worcester boiler, 5 years old. When the heating side is on things work fine till the heating is s... [Read more]
Mend Heating, Home Heating Systems

High water pressure/hot water?

Hi Have 2 problems when i tune heating on pressure gauge goes all the way round the guage in the red after 10 ... [Read more]
Mend Heating, Home Heating Systems

Ideal icos HE24 whistling and howling?

I have just moved into a new house and boiler has been working fine. I have just started using the heating, a... [Read more]
Mend Heating, Home Heating Systems

Baxi Solo 3 PFL 70 problem?

My Baxi boiler on light comes on when hot water/heating is called for and thermostats are set high but then no... [Read more]
Mend Heating, Home Heating Systems

NO HOT WATER BUT CENTRAL HEATING ON MY SUPREMA 60L MODEL?

I CANNOT GET THE BOILER TO FIRE WHEN CALLING FOR HOT WATER,IT WORKS FINE FOR CENTRAL HEATING WHEN THE ROOM STA... [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 D.I.Y, Plumbing

valliant tubomax gb 820 noise?

boiler is making high pitch noise when central heating on. The noise stops as long as the hot water tap is on.... [Read more]
Mend Heating, Home Heating Systems

Vokera boiler works in heating mode but not Hot water only mode?

I have a problem with my boiler it is a Vokera 20-80 RS flowmatic. The flowswitch tries to move but does not o... [Read more]
Mend Heating, Home Heating Systems

High Efficient Combination Boiler?

My first problem is that I cannot I.D the boiler. There are several model numbers on the User Guide but no mar... [Read more]
Mend Heating, Home Heating Systems

how do i fix my halstead boiler?

my halstead ace boiler has stopped heating the water but the ch is working ok it does not even fire up when y... [Read more]
Mend Heating, Home Heating Systems

No water in hot water tank?

Hi there, I have a problem... lol I'm afraid I'm going to err on the side of giving too much information... [Read more]
Mend Heating, Home Heating Systems

problem with Halstead Ace High Boiler?

My boiler won't fire up the central heating or hot water, the burner fires up for about 5 seconds and then sto... [Read more]
Mend Heating, Home Heating Systems

hot water problem with my baxi combi 105e?

i have a baxi 105e the heating and hot water was not working. On investigation found that the 10mm pipes were ... [Read more]
Mend Heating, Home Heating Systems

Worcester 28 LE - lack of hot water?

The heating operates as usual but recently there's been a problem with the hot water supply. I've turned the ... [Read more]
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