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We have 424 questions about mending 'boiler hot ch'

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Baxi 105e?

I have a Baxi 105e boiler, it has started to heat the radiators when the hot water tap is run. I've replaced t... [Read more]
Mend Heating, Home Heating Systems

Vaillant igniting issue ( domestic ) not CH?

Hello to everyone, I have a Vaillant sine 18 T-3 combi boiler that was installed in 1985. Have had parts repl... [Read more]
Mend Heating, Home Heating Systems

how can i fix my baxi 105HE?

my boiler water pressure keeps on goin up to nearly 3bar and expelling alot of water outside.CH works when i ... [Read more]
Mend Heating, Home Heating Systems

Worcester greenstar combi boiler not heating above 35C?

I have a new Worcester Bosch 30i combi boiler which was installed a couple of months ago, but I just can't see... [Read more]
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ravenheat csi 120 no hot water?

Hi My boiler ch side works fine but when i turn on the hot tap after a few seconds it will trip off, sometimes... [Read more]
Mend Heating, Home Heating Systems

How can I get hot water from boiler. Heating is OK?

I have a Marathon 500B boiler.There is no hot water going to the hot water cylinder regardless of whether the ... [Read more]
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Isar HE 35 again problem?

Hi Last winter (thankd to this forum) I did replace diverter valve, temp gauge and water pump and spring come... [Read more]
Mend Heating, Home Heating Systems

worchester 24i boiler ch wont work?

hi i have a worchester juniour 24i and the hot water works but the central heating wont fire up. pressed the r... [Read more]
Mend Heating, Home Heating Systems

baxi 105 e not making hot water?

no hot water but ch ok when the hot tap is opened the boiler runs for a couple of seconds then stops, I have c... [Read more]
Mend Heating, Home Heating Systems

Maxol Supercombi HE28 Error Code 5?

Hello error code 5 keeps coming on when the boiler is either heating up dhw or ch . flame is light and water i... [Read more]
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my halstead ace he24 shows fault 3 all the time on hot water ?

when I turn the hot tape on the boiler fires up then cuts out showing fault 3 new electrodes have been fitted ... [Read more]
Mend Heating, Home Heating Systems

Baxi Eco 80 Combi Boiler?

Hopefully someone can help me. I have a Baxi Eco 80 Combi Boiler, last week the CH always ON, even I turn the... [Read more]
Mend Heating, Home Heating Systems

vokera he combi boiler hw works ch all dead can anyone help?

when I turn remote to call heating there is nothing at all its dead no sound at all hot water is working fine
Mend Heating, Home Heating Systems

glow work swiftflow 75/80/100?

I have no hot water or CH. Problem started after removing a radiator to decorate a spare room. Low pressure li... [Read more]
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Worcester 28si 11?

I've changed psb and fan,when I switch boiler on red light flashes straight away with CH off and not calling f... [Read more]
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help! glow worm betacom 24c no heating?

Ok here goes... the above boiler was working fine! After coming back from a weekend trip i noticed the hea... [Read more]
Mend Heating, Home Heating Systems

hot watergoing cold?

boiler is an micro genus 2 -24 mffi whenrunning water it goes cold was told to change sensors for ch on divert... [Read more]
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baxi bermuda boiler, over 20 + years old?

When my CH switches on, on the timer my hot water turns on as well even though it is switched off, why does it... [Read more]
Mend Heating, Home Heating Systems

Central heating radiator doesn't gets hot sometimes and sometimes does?

I have a potterton kingfisher cf 50 boiler.My up stairs ch rads is fine but down stairs one of them is warm nd... [Read more]
Mend Heating, Home Heating Systems

Motorised valve for boiler?

I have a problem with my boiler- i only get hot water when the CH is switched on - i think the problem is with... [Read more]

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