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We have 792 questions about mending 'hot heating work'

How to mend ... Hot Heating Work

Mend Heating, Home Heating Systems

hot water only working when heating is on?

replaced diverter valve and everything was fine for a week.now the hot water will only work when the central h... [Read more]
Mend Heating, Home Heating Systems

Ravenheat white star?

boiler operates central heating and hot water when the micro switch is removed from the valve block but is doe... [Read more]
Mend Heating, Home Heating Systems

How can I replace diaphragm without my instruction manual ?

My Vaillant ( think it's a turbo as has black panel with green knobs as described by others ) is ten years old... [Read more]
Mend Heating, Home Heating Systems

central heating and hot water optimax he plus 31c?

why dosent the hot water and centrall heating does not work together eg when the hot water tap is open the ... [Read more]
Mend Vehicles, Cars

vauxhall zafira heating/aircon will only work on setting 4?

Strange error. Checked fuses. But the aircon/heating will only work on setting 4 on the blower 1.2 and 3 wi... [Read more]
Mend Heating, Home Heating Systems

Greenstar boiler heating water but not central heating independently?

Hi folks I wonder if you could help me with the following problem - I have a Worcester Bosch Greenstar ri (... [Read more]
Mend Heating, Home Heating Systems

heating on my boiler?

my britony combi 80 boiler works the hot water but will not stay fired up to work the heating it tries to fire... [Read more]
Mend Heating, Home Heating Systems

Worcester Bosch Highflow 400 rsf boiler problem?

I have a problem with my Worcester Bosch Highflow 400 rsf boiler. If hot water is on, I cannot get central hea... [Read more]
Mend Heating, Home Heating Systems

why does hot water come on when heating is on?

my hot water only comes on when i put my hcentral heating is on and also one of my bedroom radiator heatr does... [Read more]
Mend Heating, Oil Filled Radiators

no hot water from halstead ace high 47-333-16 HW/CH boiler?

i am unable to get the hot water to work but i do have working central heating. The boiler seems to fire up b... [Read more]
Mend Heating, Home Heating Systems

how can I increase the pressure on my HE924.BSN?

I have a Worcester heat systems 9.24 Electronic combi boiler Product Code HE 924.BSN. The pressure keeps fall... [Read more]
Mend Heating, Home Heating Systems

central heating,won't work, help!?

lpg combi boiler,vaillant,no markings or model number. guessing about 10 or more years old. timer working fin... [Read more]
Mend Heating, Home Heating Systems

vaillant turbomax 242e no hot wter?

boiler will not fire up when hot tap turned on heating work's and pressure is there
Mend Heating, Home Heating Systems

no heating or hot water ?

my boiler wont start up when i put the radaitors on it makes anoise come on churns water makes a bubbling soun... [Read more]
Mend Heating, Home Heating Systems

Glow worm 24 cxi leaking from two valves ?

Hi I have a Glow Work 24 CXI boiler and last night when I came in it had lost pressure. I turned the valve ... [Read more]
Mend Heating, Home Heating Systems

why wont worcester combi boiler work?

Was working fine then went off and the pilot light does not light when reset. No heating or hot water.
Mend Heating, Home Heating Systems

Worcester 19/24CBI Problems (Over Heating, Fail to ingite)?

Hoping that someone can shed a little light on my problem or that this may help someone in a similar position.... [Read more]
Mend Heating, Home Heating Systems

Chaffoteaux/Maury 100 Combi - C/H fine - Hot Water Probs?

Had this boiler for 10 years and after some initial teething problems, has worked fine. Recently, although th... [Read more]
Mend Heating, Home Heating Systems

Central heating not working independantly?

Replaced room thermostat as old one damaged, replacement is Drayton Combistat, 3 wire config'. All seemed wel... [Read more]
Mend Heating, Home Heating Systems

Combi boiler – faulty pressure gauge or water leak?

I don’t know if my combi boiler and system (a) has a water leak or (b) just has a faulty water pressure gaug... [Read more]

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