How to mend Heating Thermostat Combi

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How can I upgrade my Worcester 350 heater control?

We have a Worcester 350 combi-boiler with a UT2 single-channel time switch to control the central heating. Tem... [Read more]

how do i replace the heating thermostat worcester 20/25?

Boiler thermostat for worcester 20/25 heatslave combi boiler has just broken. it goes round all the way and do... [Read more]

Alpha Combi overheating?

In the last few days my heating and water temp goes sky high even if thermostat is on low to the point where i... [Read more]

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Overheat Thermostat Tripping on Bosch 240 Combi RSF?

Hi, The overheat thermostat keeps tripping on our combi boiler. The pilot will fire, but when central heati... [Read more]

Baxi Combi Instant 105e hot water works but no heating?!?

Hi I have a Baxi Combi Instant 105e. The hot water preheat function works, and so does the normal hot wa... [Read more]

boiler shuts on and off?

The boiler is a britony 100se combi, its started to shut off when on central heating only mode and before it ... [Read more]

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problems with my baxi combi 100he plus?

when i run the hot water it sometimes does not get hot and at the sametime i notice the central heating comes ... [Read more]

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how to fix my reno HE30C combi series johnson & starley ?

my boiler is all on. my hot water is fine. but when i flick the switch up to put central heating on its not tu... [Read more]

my central heating will not start on my worcester bosch greenstar combi 28i?

the central heating will not fire up on my central heating greenstar 28i junior, I had a similar problem last ... [Read more]

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fix Worcester 350 combi boiler ?

I have a Worcester 350 combi. Heating operates fine. Hot water runs fine except for the shower. Think reduced ... [Read more]

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Programming Honeywell CM921?

Hi: The heating engineer installed this unit during installation of a new boiler. This is a 1 day wireless pro... [Read more]

combi boiler rsf 82et not working correctly?

my combi boiler is not working correctly, everytime you turn the tap on.its pot luck if you get hot water or n... [Read more]

ariston combi keeps firing up?

Hi, my ariston microgenus 23mffi keeps firing up & shutting down repeatedly even though the room thermostat is... [Read more]

Britany Combi SE 80 - error codes?

Hi, Just replaced, for the second time in 4 years, the PCB in my SE 80 following a lock out and error code ... [Read more]

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Ferolli combi boiler - I pressed the wrong button?

I was trying to fix the water temp on my parents' central heating boiler and touched the + and - buttons and t... [Read more]

Cannot turn heating off?

I have just moved into a house with a Vaillient combi boiler. I cannot turn the heating off by any means, I h... [Read more]

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my worcester 350 combi boiler keeps cutting out?

When running the central heating the boiler runs for approx 10 -15 mins and then the flames go out but the pum... [Read more]

What is the operational relationship between boiler and thermostat?

I have a Worcester 28CDi combi boiler with a Honeywell T40 thermostat. I wanted to change the thermostat to a ... [Read more]

Isar HE30 problems?

We have the Ideal DH30 Isar combi heater. I am having a problem with it recognising the thermostat for the c... [Read more]

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cool radiator?

Hi,I have a gas fire, and a radiator under my front window. The radiator operates hot and cold,which makes t... [Read more]