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Looking for a Honeywell CMTA Programmable Thermostat? You can order online today at great prices and collect in your local branch or have it. Installation Guide. CM / CM Wireless Programmable. Room Thermostat & BDR91 Relay Box. Description. The Honeywell CM Wireless (CM or. Honeywell CM In my home (includes DIY) MoneySaving. There’s something about resetting the programmes on page 13 of the manual?.

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Its only 3 years old but the display is breaking up and failing, makes it near impossible to programme etc. Currently have Honeywell B wireless room stat and receiver. Replacing with another make such as the Siemens REVRF would be what I would recommend currently, although it would mean changing the receiver. Sent those and they sent a replacement which I paired to the receiver and installed myself; they paid postage to return hhoneywell old one so they could see what went wrong.

Also easy to programme and nanual batteries last about two years if you use good alkalines.

Welcome visitor you can login or create an account. Hi will this work with a Main Combi 30HE boiler. Generally a first class product, just waiting for the next generation connecting to a phone app. I’m afraid not, any other manufacturers unit will require changing the receiver. No, hkneywell only controls heating. It is 1 year from date of purchase, or 18 months from date of manufacture – whichever is the longer.


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We use cookies to create the most secure and effective website possible. Yes, but you will need a separate control for hot water.

Is this thermostat compatible with a Vokera Linea combination boiler? There is no need to change the receiver. I have a new Honeywell wireless thermostat. Is it possible to email me the instruction booklet for the CM Manuak Sounds like you have a faulty unit which needs to be replaced.

Skip to main content. I am re-newing an existing CM, will it work immediately or do I need to tune it in many thanks A: Does the CM already include any of the additional features required for Boiler Plus like Load compensation? Will there be a 3rd valve somewhere in the system and if so how the heck do i find it??? Will the CM operate more than one zone valve for heating purposes?

Honeywell CM927 Manuals

My CM permanently displays 32c room temp irespctive what the actual room hobeywell is? There is clearly a design fault and Honeywell should replace ones that are clearly faulty.

It will connect to the same 4 wires. Display segments started to go out one by one at about 2 years old so I contacted Honeywell who agreed to replace it if I had proof of purchase and professional installation.

I’ve got a CM, however when I put the slide to the off position, the radiators are still warming up even though the room temperature is over 19degC Please help A: What hoenywell the guarantee period?

Thanks very much for your advice. This function can also be used to reduce the temperature when you leave the house for a short period. The receiver and the controller both still working.


RF Chronotherm with extended feature set and slim ultra-modern design CM927, CM921

I’d say don’t take the risk and choose a different make. Thanks in advance A: Any advice or help would be appreciated as my local heating expert manuql just about given up!!

I already have the system, but need to replace a damaged thermo. Pity, as the unit itself functions well.

Honeywell CMT (CM) Wireless Programmable Room Thermostat

Do Honwywell need the stat and receiver unit or just stat? You can just replace the thermostat 13A15it will bind to your existing receiver. You may be trying to access this site from a secured browser on the server. Do you recommend any other make? I have a cm works fine but digits on control screen faded some figures not eligible. If my honeywell wireless display is faulty.

Will the CMT work using the existing transmitter. I like all the features of the wireless Honeywell but do like a one hour boost for coming in late at night or coming home unexpectedly. They are they same product. Have read in various forums and sites that the problem described above is common to Honeywell, my unit is about 4 years old.