How to mend ... Combi Room Thermostat

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]

wiring danfoss 103 timer to a danfoss ret230p thermostat?

I have a Sunier Duval SD 620 combi boiler and have a Danfosse 103 timer ~ old but reliable ~ Im fitting a Danf... [Read more]

wiring danfoss 103 timer to a danfoss ret230p thermostat?

I have a Sunier Duval SD 620 combi boiler and have a Danfosse 103 timer ~ old but reliable ~ Im fitting a Danf... [Read more]

Wiring a Danfosse 103 timer to a Danfosse RET 230P Thermostat?

I have a Sunier Duval SD 620 combi boiler and have a Danfosse 103 timer ~ old but reliable ~ Im fitting a Danf... [Read more]

How can I fix my Danfoss TP5000 + RF programmable room thermostat ?

This is a wireless thermostat as combi boiler is in roofspace. No problems for three years, but now will not ... [Read more]

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]

Express 100 combi boiler does not fire up?

My Glow worm Express 100 combi boiler is nearly 20 years old. I have a problem where the main burner does not ... [Read more]

Central heating not working independantly?

Replaced room thermostat as old one damaged, replacement is Drayton Combistat, 3 wire config'. All seemed wel... [Read more]

Rad hot even when boiler on hot water only setting?

Main radiator (in room with room thermostat has 2 locksheild valves) is always warm/hot even when combi (voker... [Read more]

New Glowworm 24c betacom- not heating radiators?

We had a brand new Glowworm 24c beta com combi boiler installed last week, with a digital thermostat in the li... [Read more]

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]

Cental heating not working on RSF 84 ET combi boiler?

We have a Ravenheat RSF 84 ET combi boiler. DHW is working fine but cannot get the central heating to work. ... [Read more]

saunier duval semia conden f30e g.c.47-920-52?

how can i fit room thermostat to semia conden f30e combi boiler

How can I make my combi boiler recognise the room thermostat ?

I have a combi worcester boiler installed by british gas. It has been fine until the batteries ran out in the ... [Read more]

Ferroli combi not responding to thermostat?

I have a 3 year old Ferroli combi gas boiler. A couple of years ago it stopped responding to commands from the... [Read more]

Boiler does not automatically switch off?

My Worcester 230 combi boiler does not switch off automatically when the temperature is reached (using a wire... [Read more]

How can I fix my Baxi Combi 105HE boiler?

The heating has suddenly stopped working today. We have a combi boiler and the hot water still comes on insta... [Read more]

Room thermostat fitting to PCB?

I have a Baxi 105e combi boiler. I want to add a wireless room thermostat, I know the receiver plugs in to the... [Read more]