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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Unfortunately the controller will need replacing.

Honeywell CM927 Manuals

It will only control your heating, not your hot water. By using this site, you consent to the use of cookies. You will need to replace the whole system including motorised valves to have a wireless control. I have recently moved into a large Georgian house.

Manal in advance A: It has a fault – it only takes 30 seconds to add a minute to the time, so it goes from 9am to 10 am in 30 minutes! Will there be a 3rd valve somewhere in the system and if so how the heck do i find it??? We are not currently recommending the CM due to quality issues. Welcome visitor you can login or create an account.


Manula stat has started to develop a problem in that the digits are not displaying properly. To do so you will need to add a mains feed as the CM is battery powered and the receiver is mains powered.

If it is a CM then honyewell can change just the thermostat. What is the guarantee period? Please read these updated terms. HTML is not translated! Unfortunately this model are plagued with display problems.

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

The optimisation feature – it learns how quickly your system heats to set temperature and adjusts on time acccording to how cold the house is – works very well. Is there a way to fix this?

I would recommend following the route of the hot pipes when only that zone is on. I already have the system, but need to replace a damaged thermo. 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: If this is not a similar replacement then what is? Enter your email to be informed when this product arrives: Please enable scripts and reload this page. There is clearly a design fault and Honeywell should replace ones that are clearly faulty.

  3310GH PDF

Description Reviews 7 Questions? Hoeywell Close Enter your email to be informed when this product arrives: Sounds like you have a faulty unit which needs to be replaced.

Is the Siemens better value for money and more reliable? What would you recommend? On May 24,we published an updated Privacy Statement. Currently have Honeywell B wireless room stat and receiver.

Honeywell CMT (CM) Wireless Programmable Room Thermostat

Sent those and they sent a replacement which I paired to the receiver and installed myself; they paid postage to return the old one so they could see what went wrong. Thanks very much for your advice. To further improve the ease of manaul and assist installation this product includes an extra large LCD display with backlighting, a dynamic text display and an ‘OK’ button.

Add to Wish List Add to Compare. It will be installed, and wired to, the receiver for that zone. I’m afraid it will need to be replaced.

If the light is going off, then the problem will lie with the receiver or another component e.

You can download it from the downloads tab.