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We have 255 questions about mending 'boiler bar heating hot'

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Mend Heating, Home Heating Systems

How can i fix glow worm 30 cxi combi boiler ?

Can you please advise me. I have f5 in red flashing on boiler. heating was fine earlier, then turned on hot wa... [Read more]
Mend D.I.Y, General D.I.Y

i can't pressurise my boiler?

i have followed the instructions on how to pressurise my vokera linea boiler but when i open the inlet valve n... [Read more]
Mend Heating, Home Heating Systems

worcester bosch boiler - pressure problems?

COLD- pressure is less than 1. demanding hot water trips the boiler. I turn the central heating on and the... [Read more]
Mend Heating, Home Heating Systems

vaillant ecomax 824e flashing e20,e13,f20. How to fix it?

Thing is, that my boiler (which is vaillant ecomax824e) use to go through these codes e20 and then f 20, or e1... [Read more]
Mend Heating, Home Heating Systems

potterton flowsure plus?

hot water and central heating work however my problem is this: couple of weeks ago boiler seemed to 'cycle' a... [Read more]
Mend Heating, Home Heating Systems

Valillant Boiler VCW GB 242E ?

Keeps loosing pressure when pressurised to1.5 bar ,hot water work fine,but heating side. I have replaced new p... [Read more]
Mend Heating, Home Heating Systems

How do I increase the pressure on my boiler?

I have a Baxi Combi 105 HE Boiler. I have recently noticed the pressure gauge dropping to around 0.5 bar or ... [Read more]
Mend Heating, Home Heating Systems

Hot water temperature varies?

Our heating and hot water system uses a Glowworm Ultracom 30cxi boiler. After servicing (2 weeks) ago the hot ... [Read more]
Mend Heating, Home Heating Systems

combi is emptying water out of overflow when topped up?

having problems with ideal combi boiler. the pressure gauge is almost on zero so i have to top it up for the b... [Read more]
Mend Heating, Home Heating Systems

Ariston microgenus 23 mffi boiler turing itself on?

Have a problem with the above boiler. Over the past few days have noticed that the boiler turns itself on all... [Read more]
Mend D.I.Y, Plumbing

How can i fix my ariston micro genus 23?

Hi,My pressure reading when off is almost zero(first line in red)boiler will turn on and run fine but then the... [Read more]
Mend Heating, Home Heating Systems

How can i fix my glowarm boiler (24cl)?

Can someone please help? I'm having problem with my Glowarm boiler (24cl), not getting any hot water but the c... [Read more]
Mend Heating, Home Heating Systems

Ferroli Boiler preasure ?

Have a Ferroli Combi 77 FFboiler heating working fine , hot water working fine, problem is preasure bar seems ... [Read more]
Mend Heating, Convector Heaters

Performa 30 hot water failure?

This boiler turns off the hot water supply, giving a hot water sensor fail indication. This happens when the h... [Read more]
Mend Heating, Home Heating Systems

no water from hotwater tap, glow worm 30cxi?

Hi I checked other replies and others with a similar problem state the water is not hot but mine is not runn... [Read more]
Mend Heating, Home Heating Systems

Low bar pressure on heatline boiler?

I have a heatline combi boiler with no external model number. The bar pressure dropped to zero and shows no si... [Read more]
Mend Heating, Home Heating Systems

Worcester 9.24 Electronic BF boiler, pressure keeps dropping?

Hi my boiler keeps dropping the pressure, this happens straight after the central heating goes off and sometim... [Read more]
Mend Heating, Home Heating Systems

Cant re-pressurise my saunier duval isofast condens f35e?

The pressure in my system has dropped to 0.5 bar so I have an error message 21 and no hot water or heating. ... [Read more]
Mend Heating, Home Heating Systems

loss of pressure in brittany combi 80?

I keep losing pressure in my combi boiler, i recharged the system and when i put the heating on it seems to sl... [Read more]
Mend Heating, Home Heating Systems

how can i fix my ,worcester heat slave combi boiler?

This is what happens when i turn on a hot tap, first the fan starts and after a short while the pilot light ig... [Read more]
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