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We have 804 questions about mending 'central combi boiler'

How to mend ... Central Combi Boiler

Mend Heating, Home Heating Systems

how can i fix my valiant combi boiler?

Just had servo value changed and still not getting central heating to come on, when in constant mode and hot w... [Read more]
Mend Heating, Home Heating Systems

how can i fix my valiant combi boiler?

Just had servo value changed and still not getting central heating to come on, when in constant mode and hot w... [Read more]
Mend D.I.Y, Switches and Sockets

Room stat query regarding a relay?

Need to fit a ferroli combi for a customer, the only thing is the combi also goes through two zone valves to g... [Read more]
Mend Heating, Home Heating Systems

Vaillant VCWGB242EH GC 4704413 Combi goes out immedi?

Hi, am working on the above boiler, was leaking at the auto air vent so tested the expansion vessel to find it... [Read more]
Mend Heating, Home Heating Systems

what can be the problem with my combi boiler?

hi can anyone help me. i have a static caravan with central heating run by a worcester 24i rsf combi,when the ... [Read more]
Mend Heating, Home Heating Systems

Fix small leak in central heating system?

My (new) oil combi boiler loses pressure from 1 bar to 0 in about 24 hrs showing I have a weep in the system p... [Read more]
Mend Heating, Convector Heaters

putting up pressure on Greenstar 30Si combi boiler?

My pressure is on 0 and although the central heating is good, I have none in the loft conversion in the attic.... [Read more]
Mend Heating, Home Heating Systems

What's wrong with my Worcester 350 combi boiler?

My Worcester combi sometimes shuts down just after it lights to heat the water for the central heating. It see... [Read more]
Mend Heating, Home Heating Systems

HOW CAN I FIX MY VOKERA BOILER LOSING PRESSURE WHEN CENTRAL HEATING ON?

HOW CAN I FIX MY VOKERA LINEA 24 COMBI BOILER LOSING PRESSURE WHEN CENTRAL HEATING ON WITH WATER COMING OUT OF... [Read more]
Mend Heating, Home Heating Systems

Why does my Biasi combi boiler central heating pump run constantly?

I am not sure if this is normal or not, but mr combi boiler's pump runs constantly when on. It turns on and of... [Read more]
Mend Heating, Home Heating Systems

no hot water in combi?

i have a vailant combi boiler roughly 25 years old, everytime i turn the hot water on the central heating come... [Read more]
Mend Heating, Home Heating Systems

dhw? on combi boiler?

The central heating side of the boiler works but the dhw does not. If you run 2 taps for a while eventually th... [Read more]
Mend Heating, Home Heating Systems

How can I sort out pressure on my Worcester combi boiler?

The pressure gauge on my Worcester Bosch Combi boiler suddenly shot up to maximum and water was running from t... [Read more]
Mend Heating, Home Heating Systems

My Worcester 24i Combi was working perfecly until I ran hot water tap?

Last night my Worcester 24i Combi was working O.K. until I turned on a hot water domestic tap. However, after ... [Read more]
Mend Heating, Home Heating Systems

PROTHERM 80E?

my protherm combi is permantly switching to the central heating and even when in summer mode.And only closes d... [Read more]
Mend Heating, Home Heating Systems

My boiler has no thermostat connected. This is surely wrong?

I have just rented a house and found that there is no central heating thermostat connected. The landlord assur... [Read more]
Mend Heating, Home Heating Systems

Siemens RDJ10 thermostat, not switching on my central heating?

I have a worcester bosch Greenstar 28i Junior combi-boiler, with a Siemens RDJ10 thermostat. I have set the ti... [Read more]
Mend Heating, Convector Heaters

Losing pressure?

My combi boiler normally has between 1-2 bar pressure on the gauge but recently it has been losing pressure ov... [Read more]
Mend Heating, Home Heating Systems

Worcester 350 boiler cutting out?

I have a worcester 350 Combi GC Number 47 311 13 about 12 years old. This boiler is always been first class... [Read more]
Mend Heating, Home Heating Systems

Leak on Central Heating system?

A new combi boiler was fitted a few weeks ago. Prior to this, the presure on the old Combi boiler dropped to z... [Read more]

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