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We have 541 questions about mending 'valve combi boiler'

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Mend Heating, Home Heating Systems

ferroli combi boiler Pressure?

I re-pressurised my expansion tank about 18 months ago using instructions below:- 1. Switch off the boiler.... [Read more]
Mend Heating, Home Heating Systems

How to turn the valve to reduce pressure?

Vaillant combi-boiler pressure is going down below 1. How to reduce pressure? Which way to turn the valve? T... [Read more]
Mend Heating, Home Heating Systems

Eurocal oil fired boiler - HOT water for 60 seconds them only warm water?

Hi, I’m hoping you can offer some assistance with a 5 years old (Approx) Eurocal Oil-fired combi boiler ... [Read more]
Mend D.I.Y, Plumbing

optima 701?

How do i change the pressure valve on optima 701 combi boiler? I am putting the pressure to 2bar, next day the... [Read more]
Mend Heating, Home Heating Systems

jaguar combi boiler pressure?

i have a jaguar combi boiler which is giving me problems. when i have the pressure valve closed and i'm runnin... [Read more]
Mend Heating, Home Heating Systems

Why does my boiler stay alight?

Hello Can some one help please, my boiler stays alight even tho the programmer switches the CH and HW off its ... [Read more]
Mend Heating, Home Heating Systems

new valve and pump fitted heating fine no hot water?

Just had an engineer to fit a new c/h pump and 3 way honeywell v4073a motorised mid position valve to a combi ... [Read more]
Mend Heating, Home Heating Systems

3 way valve leaking chaffateaux britony combi se?

valve is leaking and boiler has lost all pressure no water or heating. Its leaking from the top where the spr... [Read more]
Mend Heating, Home Heating Systems

VOKERA 20-80 RS Combi Boiler Problem?

We (in Cork) have an 20-80 RS Flowatic combi which is tempramental (but not half as tempramental as my missus ... [Read more]
Mend Kitchen Appliances, Blenders/Mixers

Combi boiler?

In the event of changing tap washers whilst you have a combi boiler installed. In turning the main water stop... [Read more]
Mend Heating, Home Heating Systems

Firebird Oil boiler, pressure always increases?

Hello Firebird, We have a Firebird Combi 90 and a few weeks ago we had thermostats put on our radiators an... [Read more]
Mend Heating, Home Heating Systems

hot water but no central heating on cb28 alpha combi?

checked micro switch and removed and cleaned diverter value, boiler runs on heat and water.and stops on boiler... [Read more]
Mend Heating, Home Heating Systems

Worcester oil heatslave 26/32 storage combi boiler?

Cannot maintain pressure in the boiler. Heats the water up very well but turning on the hot tap it comes out c... [Read more]
Mend Heating, Oil Filled Radiators

how do I change the diverter valve on my worcester 20 / 25 combi boiler?

The diverter valve on my worcester heatslave 20/25 combi boiler is stuck in the hot water position. how do I r... [Read more]
Mend Heating, Home Heating Systems

I have a leak coming from the diverter valve on my worcester bosch 28CDi ?

I have a leak coming from the diverter valve on my worcester bosch 28CDi combi boiler. I have to re-pressurise... [Read more]
Mend Heating, Home Heating Systems

Pressure too high Baxi combi instant 105e?

I noticed that my boiler was making strange noises, and so when I saw the pressure had dropped to zero I then ... [Read more]
Mend D.I.Y, Plumbing

What Valve and Shower do i buy?

I have a Valliant combi boiler i belive it reads around 1 Bar, does anybody know what type of shower valve and... [Read more]
Mend D.I.Y, Plumbing

Central Heating Not Firing Up?

My Ravenheat Combi Boiler is not firing up on the CH - the hot water works fine. I have checked the room stat ... [Read more]
Mend Heating, Home Heating Systems

heating probs?

I have a Chafetaux Britony combi boiler that works fine when you need hot water. The problem sarts when you sw... [Read more]
Mend Heating, Home Heating Systems

No hot water & central heating - Sime Super 90 combi boiler?

Combination boiler is 9 years old, no hot water or central heating. When hot tap turned on switch clicks but p... [Read more]

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