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We have 284 questions about mending 'hot water demand'

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Mend D.I.Y, Plumbing

Is my Fan faulty?

After having problems with my boiler not supplying any DHW or CH the last couple of days i am of the opinion i... [Read more]
Mend Heating, Home Heating Systems

Glow worm 100e won't fire up now, fan? Are you about Hi-Tech Plumbing?

Hello Hi-Tech Plumbing, or anybody who has a suggestion please. I have just replaced the diaphrams on my GW 1... [Read more]
Mend Heating, Home Heating Systems

How to maintain the pressure from a combi boiler?

The hot water system in my house is supplied from a combi boiler, hot water on demand. The system works good,... [Read more]
Mend Heating, Home Heating Systems

How can I get hot water from my Protherm 80E combined ch/hw boiler?

My PROTHERM 80E works fine on C.H but does not give hot water. [it used to but stopped]. CH Plumber turned pow... [Read more]
Mend Heating, Home Heating Systems

Boiler fires up when demand for hot water but doesn't when demand for C/H?

I have a Potterton Netaheat Profile 80e boiler, Honeywell V4073A mid-position valve, Honeywell ST699B programm... [Read more]
Mend D.I.Y, Plumbing

hot water storage cylinder?

how do i calculate vented indirect storage cylinder capacity,replacing old cylinder with bigger capacity due t... [Read more]
Mend Heating, Home Heating Systems

boiler noise?

i have a glow worm compact 100e on either hot water demand or central heating it works for a minute or so then... [Read more]
Mend Heating, Home Heating Systems

fault with my worcester 240?

i have had my boiler for some time now it is a fan assisted not a balanced flue whilst there is no problem wit... [Read more]
Mend Heating, Home Heating Systems

BAXI COMBI 105e cutting out problem?

3 year old BAXI 105e problem when DHW is selected pressure is 1.1bar all lights on except central heating.temp... [Read more]
Mend Heating, Home Heating Systems

Why does my central heating go on and off without any time settings?

I have a turbomax 828e valianlt boiler which supplies hot water to the taps and the central heating. However, ... [Read more]
Mend Heating, Home Heating Systems

Vaillant Turbo Max VUW 242 E, DHW not opereating?

Vaillant turbo max 242/282 E. Domestic hot water on demand wont operate from kitchen only, will work from bath... [Read more]
Mend Heating, Home Heating Systems

Potterton Puma 80 - Heating won't switch off?

Even though the central heating switch is set to off - the central heating won't turn off unless the boiler is... [Read more]
Mend Heating, Home Heating Systems

Hot Water Pressure?

Hi all, I have a combi boiler that is heating cold water for the hot taps as and when there is a demand for... [Read more]
Mend Heating, Home Heating Systems

Boiler does not ignite. Glowworm compact electronic?

The lights are on except for the flame light when demand is called for, but when demand is called for the boil... [Read more]
Mend Heating, Home Heating Systems

worcester 240 rsf hot water demand trips system help please?

my 240 runs fine on central heating and short demand for hot water but when you try and fill a bath the whole ... [Read more]
Mend Heating, Home Heating Systems

How can I get the Hot water to come on when I turn the tap on my heater?

I have a Halstead Ace water heater, the central heating works fine but the water heater does not come on deman... [Read more]
Mend Heating, Home Heating Systems

Help!! Big problem with my Ariston Euro Combi?

Hi I recentley reparied i leak to my central heating system and after i had drained it down, repaired the ... [Read more]
Mend Heating, Home Heating Systems

baxi 80e no central heating?

we can get hot water but the water light remains on even without demand for hotwater. this is not allowing for... [Read more]
Mend Heating, Home Heating Systems

Baxi 105e c/heating cycling?

The boiler seems to be heating in bursts. The main burner is only lighting for a few seconds and then shuts o... [Read more]
Mend Heating, Home Heating Systems

Worcester Bosch Combi 350 Boiler keeps cutting out?

Hi there, We have the above named boiler and have had 2 WB technicians in this week to look at it and neith... [Read more]
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