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We have 322 questions about mending 'heating starts hot'

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Mend Heating, Home Heating Systems

baxi genesis 80 fault?

i have no hot water at all and the heating only comes on for 30 seconds and then goes off . when i reset sy... [Read more]
Mend Heating, Home Heating Systems

How can I stop my Sime Halstead Trio Whining?

Hello everybody. I have a Sime Halstead Trio boiler. When I run the hot water it fires up fine but just before... [Read more]
Mend Heating, Home Heating Systems

fault diagnosis?

my ferroli optima boiler has stopped working hot water is fine but sometimes heating will not fire upone night... [Read more]
Mend Heating, Home Heating Systems

POTTERTON PRIMA F ERRATIC FAILURE TO IGNITE?

When the hot water or heating is switched on the boiler attempts to start up, i.e. the fan starts and stays on... [Read more]
Mend Heating, Home Heating Systems

my baxi 50/4 problem?

works fine when it asks for hot water only, however, when its hot water and central heating it continualy stop... [Read more]
Mend D.I.Y, Plumbing

water overheatinh in central heating?

The water in header tank nearly explodes hot after you can hear strange noise probably from the pump. I change... [Read more]
Mend Heating, Home Heating Systems

Ferroli Mondena 102?

No hot water or Central heating.The boiler starts up, the burner lights and the fan runs, then after about 5 s... [Read more]
Mend D.I.Y, Plumbing

How can i get my pressure down?

I have bled my Volkera linea 24 combli from 3.45 bar to 1.0 bar from cold, i fired up again and when on hot wa... [Read more]
Mend Heating, Home Heating Systems

Faulty boiler or faulty pump?

When I turn on the hot water or heating on, the boiler switches on but after couple of minutes or so the boile... [Read more]
Mend Heating, Home Heating Systems

glow worm compact 80e?

got the above boiler which works fine on heating i.e diverter valve switches over, fan and pump starts, fires ... [Read more]
Mend Heating, Home Heating Systems

How can i get my biasi boiler to come on?

Our biasi boilers pilot light has gone out and won't come back on again. This means that when i try for hot wa... [Read more]
Mend Heating, Home Heating Systems

Potterton Kingfisher boiler overheating?

After about 5 years of trouble free heating my boiler has suddenly developed a problem. On gravity hot water i... [Read more]
Mend Heating, Home Heating Systems

how can i find out what is wrong with my vailliant 824e?

Hi, can anyone help? My boiler is 7 years old. i have an intermittent problem. When initially turning the ta... [Read more]
Mend Heating, Home Heating Systems

baxi solo 30/80 system boiler?

After boiler starts,within one miniute,its shout down,then again its starts and turning off it self.there is ... [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

How fix Worcester Bosch 537i Combi Boiler?

Domestic hot water works OK Central heating not working. If I switch off and on again can hear water pum... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Maxi 105e?

When I switch on to heating and Hot water (CH & HW) The supply light is on, The CH &HW light is on.The Pump ... [Read more]
Mend Heating, Home Heating Systems

How can I fix Vaillant combi-boiler?

The pilotlight works, and comes on for the heating. It starts to work for a short time on the hot water, then ... [Read more]
Mend Heating, Home Heating Systems

boiler Hermann icon 23 388u20 will not start?

boiler starts then shuts own, have replaced pcb main and ignition. I have green light for power when demanding... [Read more]
Mend Heating, Home Heating Systems

no hot water or heating?

when you turn the water on the boiler tries to fire up, the fan starts but the gas burner does not ignite,trie... [Read more]
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