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Mend Boiler Will Not Heat Water

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We have 1328 questions about mending 'boiler will not heat water'

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Mend main green light

Main 24 Combie Boiler causing power trip of all power to home?

When switching on the boiler the green power light 'flashes' (not on constant), then when selecting 'heat & wa... [Read more]
Mend heating system programmer

Fault with ideal isar he 30?

My ideal isar he30 boiler keeps on heating the system when the programmer is off and goes to the preheat for t... [Read more]
Mend heat 20 heating

my creda redhead water wont heat ?

my creda redhead boiler is 20 years old it has just stopped heating our water
Mend morco feb fault

MORCO feb 24 Boiler heats ok but locks out when temp reached?

I have a fault on my Morco feb24e boiler central heating - it's failing with fault code (no flashes) which say... [Read more]
Mend boiler fine ch

no heating on sime format 80?

my sime boiler works fine for hot water but not for c/h. At first only c/h worked but since it was sorted so h... [Read more]
Mend water boiler heat exchanger

I can only get lukewarm water from my Chaffoteaux & Maury Britony boiler?

I think this might be the heat exchanger, but does anyone know what else it might be.
Mend dhw mode boiler

Can anybody advise why Flexicom 35CX goes into state S53 when in DHW mode?

The boiler works fine for central heating and DHW for sink taps and shower, but when bath tap is used the boil... [Read more]
Mend vaillant boiler fires

How can I fix my Vaillant Ecotec Plus 428 boiler problem?

When the outside temperature is very cold, and the boiler fires up to heat domestic water and/or the central h... [Read more]
Mend potterton central heating

Potterton performa central heating problem?

Hello, everybody. Since I dont want to be tricked by any plumber who might visit me in the future I'm looking... [Read more]
Mend f5 18hxi boiler

Permanent F5 fault?

I have a Glowworm 18hxi boiler with a Systemate 2000 Gledhill system. Boiler keeps failing with F5 fault. Ha... [Read more]
Mend vaillant changed diverter valve

how can i fix my boiler?

i have a vaillant turbomax 242e changed diverter valve but still not getting hot water .gasman told me dhw hea... [Read more]
Mend ideal boiler fault

Ideal Combi Logic boiler "L3" fault. ?

Whenever the temperature knob is turned up higher than half way, the boiler shuts down, flashing L and 3. Have... [Read more]
Mend switch problem start

28i Junior Low Water Pressure Switch?

Hi, Have got a lockout problem with my Worcester 28i Junior. Does not like to start if it has not been run ... [Read more]
Mend hot heating warm

hot water?

Linea 24 combi,central heating up ok,water is warm then cold when i run the bath and boiler cuts out water is ... [Read more]
Mend service hot water

can anyone service a powermax 155x in Tunstall?

Boiler gave some hot water and then sounded as though it was trying to heat very little water - then gave up t... [Read more]
Mend hot water boiler

No hot water in cylinder?

Our boiler does notr heat the water cylinder as our old one did. can you help. Margaret
Mend problem hot heating low

how to locate problem?

baxi 105 he hot water ok .when heating selected low pressure punp fault led lights if you run hot water 5 seco... [Read more]
Mend ideal he24 isar

Ideal HE24 Isar?

i have an ideal he24 isar boiler with the fault l-9 the plummer told me i have to change the heat exchanger ... [Read more]
Mend Heating, Home Heating Systems

Ideal Classic FF350 doesnt heat to required temp?

Hi We have an Old cottage that is used as my office, now its getting cold ive noticed that the rads dont heat... [Read more]
Mend boiler not giving heat hot water

Query boiler not giving heat or hot water?

I have a Saunier Duval F24E:2 and the red and green lights as on constantly. The thermostat is showing at 21 ... [Read more]

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