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We have 265 questions about mending 'boiler valve cold'

How to mend ... Boiler Valve Cold

Mend Heating, Home Heating Systems

C & M boiler extra problem!?

Whwn the loo is flushed or a cold tap run hard the boiler starts humming and when the cold tap is turned off i... [Read more]
Mend Heating, Home Heating Systems

Problems With Ferroli Domi Compact F30 B Heating and Water?

Hi, I have the above boiler which is around 4 years old. Recently it has started giving me a number of prob... [Read more]
Mend Heating, Home Heating Systems

Luke warm radiators?

Really need help with a central heating problem (old, but sturdy back boiler open vented system in a flat - o... [Read more]
Mend Heating, Home Heating Systems

Vaillant eloblock problem?

hello. I have a 6kw water heater from vaillant and it recently shut down from an overheat protection, (F 20 ... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Main Combi 30HE boiler?

The domestic hot water system is not operating properly as it heats the water to the right temperature when yo... [Read more]
Mend Heating, Home Heating Systems

Halstead quattro diverter valve?

Hi, I have a Halstead quattro. I had the diverter valve replaced in Dec 2013 but had found that recently t... [Read more]
Mend Heating, Home Heating Systems

Worcester heatslave 20/25?

Hi, I have been having a problem with my heating for some months now but very intermittent, occasionally the h... [Read more]
Mend Heating, Home Heating Systems

Potterton Netaheat M11 no heating no hot water?

The boiler lights up and gets very hot and then closes down. We have replaced pump and fan. Zone valve wor... [Read more]
Mend Heating, Home Heating Systems

Glow-worm 30cxl?

Started off blowing 3amp fuse in boiler, water cold but heating working ok, engineer came out and fitted a ser... [Read more]
Mend D.I.Y, Plumbing

water goes cold during shower?

We have a baxi 105he combo, it has just been serviced and we were having a problem with the water suddenly goi... [Read more]
Mend Heating, Home Heating Systems

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]
Mend Heating, Home Heating Systems

baxi solo wm 40/4pf - won't light?

Hi I have a boiler problem that is proving perplexing. It wouldn't fire up so I worked with the fault findi... [Read more]
Mend Heating, Home Heating Systems

Y Plan - Mid Position Valve 'fault'?

Hi, I have BGMVSP-23 'mid position' valve. (I believe a Y plan setup) Basically the pump only runs when ... [Read more]
Mend Heating, Home Heating Systems

Valiant Eco tech plus combi bolier?

I recently had my filling loop and valve changed, as i had a problem with the pressure going up and i had to k... [Read more]
Mend Heating, Home Heating Systems

No HW but HW+CH works fine?

Hi Just bought a new house but got problems with the hot water. When I switch both HW+CH everything's ok. I... [Read more]
Mend Heating, Home Heating Systems

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 Heating, Home Heating Systems

why ami losing pressure on my green star 28i junior boiler?

system and dhw working ok! check radiators for leaks and all topped up. The system is not dumping water ive ch... [Read more]
Mend Heating, Home Heating Systems

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 Heating, Home Heating Systems

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]

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