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We have 232 questions about mending 'open water heating'

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Mend Heating, Home Heating Systems

central heating and hot water optimax he plus 31c?

why dosent the hot water and centrall heating does not work together eg when the hot water tap is open the ... [Read more]
Mend Heating, Home Heating Systems

How to top-up a Glow-worm Micron domestic boiler?

Asking this question for a distant elderly relative, before she gets ripped off by yet another crooked plumber... [Read more]
Mend Heating, Home Heating Systems

BAXI Combi 30 Boiler - Condensate Block - Frozen?

Hiya all - I got up this morning and the error light was flashing on my boiler telling me that there's a probl... [Read more]
Mend Heating, Home Heating Systems

Glow worm Energy saver?

Hi, My Glow worm Energysaver boiler starts to resonate when Full hot water is demanded, it sounds like a noi... [Read more]
Mend Heating, Home Heating Systems

Only get hot water from Vokera boiler when the tap is hardly open ?

When I run a bath I can only get the water to heat up when the tap is just open & water is a trickle. Heating ... [Read more]
Mend Heating, Home Heating Systems

my vokera 20/80 has no dhw?

My vokera 20/80 has developed a dhw problem. The central heating works fine, however, when I open a hot tap, I... [Read more]
Mend Heating, Home Heating Systems

how do i fix my vokera flowmatic 24-96 RSE combi boiler?

when i open my hot tap the diaphram lifts the pin to make the microswitch the water gets hot but when i close ... [Read more]
Mend Heating, Home Heating Systems

Hot water but no heating?

Hi i have a fully pumped two valve system which until recently has been working reasonably well, I say reasona... [Read more]
Mend Heating, Home Heating Systems

Why does my glowworm 24ci keep over pressurising when heating is on?

The starting cold water pressure is filled to 1 bar and system is free from any air. Then the heating is turne... [Read more]
Mend Heating, Home Heating Systems

How can I fix this Valliant problem?

When I turn off my central heating and have turned all the controls off why does the heating still stay on whe... [Read more]
Mend Heating, Home Heating Systems

vaillant eco tec pro 28 ?

My central heating goes off when I open the hot water tap. To get the heating back on I have to switch the ce... [Read more]
Mend Heating, Home Heating Systems

PROTHERM BOILER 80E HOT WATER?

MY PROTHERM 80E BOILER IS RUNNING HEATING UP MY RADIATORS AND THE BOILER GAUGE IS SHOWING ABOUT 70 DEGREES. I ... [Read more]
Mend D.I.Y, Plumbing

no dom hot water?

optima 701, i cant get d.h.w. heating is ok but running hot tap cold ,boiler not calling for heat when tap ope... [Read more]
Mend Heating, Home Heating Systems

Glowworm Ultimate Boiler - Electrical Problems?

I have a Glowworm Ultimate Boiler, I've had it for around 12 years and just recently it stopped working. The b... [Read more]
Mend Heating, Home Heating Systems

Baxi Boiler (Very strange Promblem)needs Help Plz?

Hi Can any Expert help me please. I have Baxi combi Boiler, problem I am having is very strange. My heating wo... [Read more]
Mend Heating, Home Heating Systems

potterton performer 24kw HEcombi?

Hello ,is there any quallified heating engineers out there who may know wat this fault is. no hot water,the p... [Read more]
Mend Heating, Home Heating Systems

Rising Pressure on Vaillant ecotec plus - What to do?

My Vaillant ecotec plus boiler is nearly a year old - it was fine all year giving just hot water but as soon a... [Read more]
Mend Heating, Home Heating Systems

worcester 24i - too high and too low pressure?

hi. i have a problem with my boiler. when i open that filling loop, it fills the boiler but the pressure go... [Read more]
Mend Heating, Home Heating Systems

is it repairable?

I have a glow worm swiftflow combi boiler and there is a constant drip coming from the over flow outside. The... [Read more]
Mend Heating, Home Heating Systems

Sime super 90 burner problem?

if you turn on the hot tap on the pilot light clicks burner fires etc all works as it should hot water central... [Read more]
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