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We have 217 questions about mending 'boiler works cold'

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Mend D.I.Y, Plumbing

My hot water keeps going cold?

The red button underneath our boiler keeps popping out when i have a shower and the water runs cold. It happen... [Read more]
Mend Heating, Home Heating Systems

biasi 24s DHW?

i have a baisi 24s boiler heating works fine hot water runs hot and cold? any suggestios
Mend Heating, Home Heating Systems

central heating Works but no hot?

Central heating works, boiler on, power on, all ok from tank (system mate) there are 2 pipes 1 label hot wat... [Read more]
Mend Bathroom Appliances, Baths and Showers

whats wrong with my vailant boiler?

when opening the hot tap to run it takes time to flow hot water and then my boiler stops and cold water runs. ... [Read more]
Mend Heating, Home Heating Systems

no hotwater on worcester 24cdi ?

My central heating works ok but when I come to run the hot water for a bath the light indicator (red) does not... [Read more]
Mend Heating, Home Heating Systems

baxi 551 boiler and fire?

system works fine all day all radiators on and hot, water tank hot, then rads start to cool down, water still ... [Read more]
Mend Heating, Home Heating Systems

intermittent hot water?

I have a glow worm swift flow combi boiler about 10 years old, i have had different parts replaced over the ye... [Read more]
Mend Heating, Home Heating Systems

ravenheat boiler - CH works fine, No hot Water?

Hi Guys The CH works fine, But when you want HW the bolier wont fire up you just get cold water and a whist... [Read more]
Mend Heating, Home Heating Systems

Potterton E1 33 fault?

i have a Potterton Promax Combi He plus. The E1 33 fault keeps showing. We have had the ignitor changed, Calor... [Read more]
Mend Heating, Home Heating Systems

my standby light keeps coming on?

i have an FER Falcon 0047L60046 boiler in the really cold weather the rads only get luke warm then the standby... [Read more]
Mend Heating, Home Heating Systems

How do i stop my stanby kicking in?

i have an old falcon boiler which works fine normally but in this cold weather the heating comes on but the ra... [Read more]
Mend Heating, Home Heating Systems

Valliant ecotec pro 28 installation cost ??

Hello I need to replace my old boiler (13 yrs old Pott. Puma 80) as only the heating works and the hot wat... [Read more]
Mend Heating, Home Heating Systems

Can any body help me to diagnose my Baxi 105e please?

Hello, I have problem with my Baxi 105e. I had replaced diaphragm for DHW and it worked fine but now (after f... [Read more]
Mend Heating, Oil Filled Radiators

is my thermostat broken?

my boiler fired up for about 5 minutes and then cut out i assumed the stat had burned out so i by-passed it an... [Read more]
Mend Heating, Home Heating Systems

my Powermax 155x combi boiler has high pressure?

i get hot water and the central heating works but the pressure keeps rising and i have to turn the boiler off.... [Read more]
Mend Heating, Home Heating Systems

How do I get my Worcester Bosch 42CDi to work?

Hi, I have a worcester bosch green star 42CDi and have the same problem. It happened last Christmas, and the k... [Read more]
Mend D.I.Y, Plumbing

I have no water at all the my upstairs bathroom?

I have full hot and cold water downstairs, but nothing at all to the upstairs taps shower or toilet. I have a... [Read more]
Mend Heating, Home Heating Systems

Ravenheat CSi 150 CH problem?

Hi My HW works fine, but when i put the CH system on the rads warm up nice and hot the boiler stops as expecte... [Read more]
Mend Heating, Home Heating Systems

worcester 28i boiler ?

Since the cold spell my boiler is not working on the timer, although the system works fully if i use manual ov... [Read more]
Mend D.I.Y, Plumbing

shower goes hot then cold.... repeatedly!?

hi, i have an alpha HE cb25 boiler and ive just had a new reciever fitted as it was faulty. Now when i have a ... [Read more]
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