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We have 225 questions about mending 'main boiler hot'

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Mend Heating, Home Heating Systems

have 45/2 back boiler, glowworm spewing flames from front any ideas to fix?

i have 45/2 glow worm back boiler and it was spewing flames from the back boiler unit through into the main fi... [Read more]
Mend Heating, Home Heating Systems

What could be the problem if boiler fails to fire up?

main burner does not ignite, boiler fails to fire up, pilot light ok, pump ok, room stat ok. programmer ok.No ... [Read more]
Mend Heating, Home Heating Systems

potterton performer 24kw HEcombi?

Hello ,is there any quallified heating engineers out there who may know wat this fault is. no hot water,the p... [Read more]
Mend D.I.Y, Plumbing

Sime Super 90 does not ignite?

I have just replaced the diverter valve, and mircoswitch on my boiler. (No leaks) Microswitch wireing as per t... [Read more]
Mend D.I.Y, General D.I.Y

Main Bristol boiler getting hot the turning off?

Hi Can anyone help ? Ive got a Main bristol boiler and when i turn the hot tap on it gets very hot for abou... [Read more]
Mend Household Appliances, Washing Machines

apm 8552?

My machine started to make a horrible burning smell and then packed up, further investigation led me to replac... [Read more]
Mend Heating, Home Heating Systems

actuator/stepper motor is not moving?

I have a heatline c24 condensing boiler diverter valve actuator/stepper motor is not moving. The central heat... [Read more]
Mend Bathroom Appliances, Baths and Showers

vailiant turbo max hot cold fluctuating water temp?

Our boiler continually fires up and goes out every 5-10mins giving a fluctuation in hot water temp from stone ... [Read more]
Mend Heating, Home Heating Systems

How can I raise water pressure on my Main Combi 24 HE boiler?

We bled our radiators last night as some were not getting hot all over. Today the pressure on boiler is at 0 &... [Read more]
Mend Heating, Home Heating Systems

How can I fireup my Ferroli 102 (0208L83093)?

Hi all desperately need your help! My Ferroli boiler system was working absolutely fine, in th morning couldn... [Read more]
Mend Kitchen Appliances, Blenders/Mixers

Combi boiler?

In the event of changing tap washers whilst you have a combi boiler installed. In turning the main water stop... [Read more]
Mend Heating, Home Heating Systems

ravenheat rsf100et no hot water or heat?

i came to fault find on this boiler, pump runs, fan runs, pressure switch ok boiler lights on pilot light and ... [Read more]
Mend Heating, Home Heating Systems

grant euroflame 70/90 utility/kitchen boiler stopped working?

grant euroflame utility/kitchen boiler stopped working bled the nipple on the boiler bled the pipe on main oil... [Read more]
Mend Heating, Home Heating Systems

Worcester bosch 24i not going ON automatically?

Hello, I want to share how i fixed my boiler - worcester 24i. Issue: the boiler would not go on when... [Read more]
Mend Heating, Home Heating Systems

ravenheat rsf100e no heating or hot water?

called to this boiler and found that it will go thro its start up procedure up to the point of pilot ignition ... [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

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

How can I fix my Glow-worm 30cxi - hot water goes cold when having a shower?

Hi, I've had this 30cxi model for about two years now and have had no major problems apart from the pressure ... [Read more]
Mend Heating, Home Heating Systems

I have a main medway boiler?

when I turn on hot water tap the boiler makes a loud bang and the pilot light goes out.
Mend Heating, Home Heating Systems

Vaillant Gb 221 H Stays on?

After hot water use the boiler sometimes continues making a noise (the "working" noise) and the main flame wil... [Read more]
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