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We have 1247 questions about mending 'boiler thermostat'

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Mend Heating, Home Heating Systems

Potterton Kingfisher Bolier RS80, Firing on/off constantly?

Hi, I have a Kingfisher rs80 boiler about 4 years old. It works fine until it gets to the cut off temperature ... [Read more]
Mend Heating, Home Heating Systems

No hot water with Biasi 28 combi boiler?

Can anyone help. I have a Biasi boiler which had a knocking noise when it first started from cold. I added a ... [Read more]
Mend Heating, Home Heating Systems

How can I fix my Ideal Classic FF250 central heating boiler?

Hi, We have an Ideal Claassic FF250 central heating boiler that appears to trip our RCD, leaving us with no e... [Read more]
Mend Heating, Home Heating Systems

Still no heat but how water is fine - worcester 24i junior rsf combiboiler?

Hello - It's regarding the boiler mentioned above. I am getting hot water easily enough but no central heating... [Read more]
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Myson Apollo 30si?

My boiler works fine for HW but when I want CH, it does not ignite. If I set the switch to CH&HW then I get bo... [Read more]
Mend Heating, Home Heating Systems

Central heatin only works with hot water on?

I have a potterton boiler that only fires up when hot water is switchted on.Once water gets to required temper... [Read more]
Mend Heating, Home Heating Systems

Add a room thermostat to my Worcester Bosch 280 Combi Boiler?

Can i put a room thermostat to my worcester bosch 280 combi boiler, if yes how is it done?
Mend Heating, Home Heating Systems

24i Worcester RSF Combi - hot water but no heat!?

Hello - It's regarding the boiler mentioned above. I am getting hot water easily enough but no central heating... [Read more]
Mend Heating, Home Heating Systems

How can I change a thermostat in an old Myson Apollo boiler?

How can I change the high thermostat in a Myson Apollo boiler. It's about 10 years old. I've bought the ther... [Read more]
Mend Heating, Home Heating Systems

Should the flue from my Ariston A30 MFFi be dripping? (and other questions)?

I have recently had an Ariston Combi A30 MFFi installed. The flue is located a good height above my downstairs... [Read more]
Mend D.I.Y, Plumbing

circuit diagram for stat and programmer?

has anyone got the circuit diagram for vokera compact combi boiler. the programmer and thermostat connections
Mend Heating, Home Heating Systems

Which wireless thermostat is compatible with a ferroli combi-boiler?

We have a Ferroli Modena 80E combi-boiler and want to fit a wireless thermostat in the house to control the te... [Read more]
Mend Heating, Home Heating Systems

how to get my radiators hot?

When my central heating system is on my radiators only get luke warm, even if the room thermostat is on full, ... [Read more]
Mend Heating, Home Heating Systems

Central Heating comes on with hot water?

I have a Landis and Gyr electronic timer (seems fine) attached to a boiler which provides hot water via a hot ... [Read more]
Mend Heating, Home Heating Systems

Why does pressure in worcester 240 keep falling?

My boiler is about 12 years old and I have to refill the pressure on a very regular basis(every few days). Wha... [Read more]
Mend Heating, Home Heating Systems

Glow Worm economy plus 40F central heating problem?

We have a GW economy plus 40F boiler that is heating our water fine but when you turn the central heating ther... [Read more]
Mend Heating, Home Heating Systems

IDEAL CLASSIC LXFF & FF BOILER?

We have this boiler controlled by a "Siemens RWB29" (and with a "Towerstat RSD" thermostat). The controller... [Read more]
Mend Heating, Home Heating Systems

Myson Apollo Fanfare Boiler?

My boiler fires up okay but at the end on its cycle the is a loud banging and water streams out of the overflo... [Read more]
Mend Heating, Home Heating Systems

POTTERTON Performa 28i?

Boiler about 3.5 yrs old. regular service. recently keeps dropping pressure and heating does not work. althoug... [Read more]
Mend Heating, Home Heating Systems

Why does the Hawk II Optima keep turning on central heating without request?

I have a Hawk II Optima combi boiler which is around 10yrs old. I've pushed the selector switch to the disable... [Read more]
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