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We have 923 questions about mending 'combi central heating'

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Mend Heating, Home Heating Systems

Firebird 90 oil combi boiler?

i have a firebird 90 combi boiler. I very rarely use it to heat the water as I have a seperate electric shower... [Read more]
Mend Heating, Home Heating Systems

my Ravenheat 820/20 combi keeps overheating?

when the boiler powers up on central heating the boiler keeps running and makes the water presure go above 3 b... [Read more]
Mend Heating, Home Heating Systems

potterton combi?

water heater will light the boiler but central heating keeps going out sfter 10 seconds or so...what can i do?
Mend Heating, Home Heating Systems

My Ariston Combi A boiler keeps losing pressure from Central heating loop?

Heating loop pressure drops to the red line twice a day. Cannot find any leaks from any of radiator and no lea... [Read more]
Mend Heating, Home Heating Systems

how to fix my ravenheat silver star combi boiler?

When on central heating and has reached its correct temp the burner switches off/on every few seconds I have c... [Read more]
Mend Heating, Home Heating Systems

Falling Pressure?

Each year at this time when I turn the heating on on my Linea 24 combi boiler after being off all summer, the ... [Read more]
Mend Heating, Home Heating Systems

how do you adjust the pressure on a vokera combi boiler?

Pressure right down to red . Central heating working ok but no hot water.
Mend Heating, Home Heating Systems

alpha combi no ch?

no central heating on my alpha combi boiler why can you help
Mend Heating, Home Heating Systems

Remeha Avanta Plus not not activating heating?

I have just moved in to a new property with an Avanta Plus Combi Boiler. It works fine for heating the Hot Wat... [Read more]
Mend D.I.Y, Plumbing

no hot watet?

Alpha cb28 combi boiler central heating fine no hot water amber light flashing but does not ignite when hot ta... [Read more]
Mend Heating, Home Heating Systems

How can I fix a Vokera linea combi boiler?

I have a Vokera linea boiler, the central heating seems to be fine, but we have no hot water. Does anyone know... [Read more]
Mend Heating, Home Heating Systems

Why has Heat Exchanger on IDEAL ISAR HE24 gone?

So... At the end of 2008 (early December, so about 4.5 years ago). We had central heating installed for the... [Read more]
Mend Heating, Home Heating Systems

Ravenheat heating thermostat transmitter does not work?

My Vaillant combi boiler provides hot water but the Ravenheat transmitter type thermostat has stopped working ... [Read more]
Mend Heating, Home Heating Systems

baxi 105e combi?

does any one know out there why does my boiler go hot and cold stays on for one minute then goes off central h... [Read more]
Mend Heating, Home Heating Systems

new worcester 550I combi boler?

When the hot tap is opened fully the temp of the water increases until the boiler trips out .Worcester service... [Read more]
Mend Heating, Home Heating Systems

Glow-Worm 30cxi combi boiler. No hot water.CH ok?

Turning on hot tap produces 30 secs.tepid water, then permanent cold. Central heating fine. Pressure 1.5 bars.
Mend Heating, Home Heating Systems

Glow-Worm 30cxi combi boiler?

On turning on water runs tepid for 30 secs. then cold thereafter. Pressure indicating steady 1.5 bars. Central... [Read more]
Mend Heating, Home Heating Systems

Pressure increase and decrease problem?

I have a vaillant combi turbo 824e and have noticed the pressure dropping to well below 1 bar. I top up and bl... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Worcester Bosch 24i RSF Combi Boiler?

The central heating side of my boiler will not fire up. The hot water starts straight away. The fan and pump a... [Read more]
Mend Heating, Home Heating Systems

How can I get rid of trapped air in central heating system?

After replacing the small rubber seal on the shaft of the hydraulic actuator in my BIASI 24S Combi boiler, the... [Read more]

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