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We have 283 questions about mending 'heating water ch'

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Mend Heating, Home Heating Systems

Glow Worm Ultimate 50FF making "popping" noises?

During heating my 50FF boiler is making popping noises almost as if the water is boiling inside. It is not hap... [Read more]
Mend Heating, Home Heating Systems

Why does my boiler not turn off?

Hi. I have a Potterton Ultra DV40 boiler and also a Megaflo unvented water heater. When the boiler is heating ... [Read more]
Mend Heating, Home Heating Systems

Potterton PRIMAF?

HOT WATER OK WHEN CENTRAL HEATING ON. NO HOT WATER WHEN CH OFF INDICATOR OK
Mend Heating, Home Heating Systems

vaillant vcw-gb 242 eh not igniting to either heat dhw or ch?

boiler was drained to look at water valve diaphragm as central heating was not working (ie) diverter valve no... [Read more]
Mend Heating, Home Heating Systems

Possibly faulty mid position valve?

As the summer is here I decided to turn my central heating off but keep the programmer on for the hot water. ... [Read more]
Mend Heating, Home Heating Systems

Baxi 105e. Central Heating working, no hot water through taps !?

Hi everyone. I've got a 3 year old Baxi Combi 105e, that, for some reason last night, got low water pressure a... [Read more]
Mend Heating, Home Heating Systems

Ravenheat CSI 85 no DHW unless CH on?

Hi, I have a problem with a Ravenheat CSI 85 (18 months old) which will only give DHW when the CH is on. ... [Read more]
Mend Heating, Home Heating Systems

Ravenheat CSI 85AT boiler tripping problem?

Ravenheat condensing combi boiler CSI 85AT fault? My 1.5 year old boiler has developed a random & intermitt... [Read more]
Mend Heating, Home Heating Systems

Ravenheat condensing combi boiler CSI 85AT fault?

My 1.5 year old boiler has developed a random & intermittent tripping fault, in both modes of heating (i.e. CH... [Read more]
Mend Heating, Home Heating Systems

Sime 80 Friendly Format Combi Boiler stops heating?

The boiler is increasingly failing to produce hot water from taps and for CH after it has already started a he... [Read more]
Mend Heating, Home Heating Systems

hot water will not work unless ch is on?

i have a lynx boiler but my hot water would not work unless central heating is on
Mend Heating, Home Heating Systems

Ideal Classic LX LXFF 260 problem?

How can I tell if the system is gravity fed or controlled pump. Just moved into a new house (new to us) & info... [Read more]
Mend Heating, Home Heating Systems

re re noisy worcester 24i?

hot water fine except for some scale (not a lot) but central heating system noisy like air is trapped in it(gu... [Read more]
Mend Heating, Home Heating Systems

Bosch 350 Combi. CH not working domestic water OK?

Bosch 350 Combi. I have a similar fault to an earlier posting in that domestic water is OK but central heating... [Read more]
Mend Heating, Home Heating Systems

how can i fix my brittony combi se?

I set the water pressure on my brittony combi se at 2 bar and when the heating is on the water pressure expan... [Read more]
Mend Heating, Home Heating Systems

My CH doesn't work after being stichted off all summer, Potterton Prima F?

It appears my Boiler isn't heating. Radiators haven't been on since very early in the year. I thinkk the hot w... [Read more]
Mend Heating, Home Heating Systems

vaillant combi no hot tap water?

I have a Vaillant combi boiler TURBO MAX PRO 24E only two years old and have had problems getting hot water to... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCW GB 242 EH?

I have a vaillant vcw gb 242 eh boiler that was already in my flat when i bought it, i have no idea how old it... [Read more]
Mend Heating, Home Heating Systems

Potterton Metaheat - CH radiators work only when HW is on?

I have a Potterton Metaheat. It is controlled by a Potteron EP2000 type controller with a thermostat in the li... [Read more]
Mend Heating, Home Heating Systems

potterton ep2000,,,hw only works when ch is on?

the hot water only works when the central heating is put on,and the timer seems to do nothing,,the hot water s... [Read more]
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