Question about Honeywell Programmable Thermostat Heater
Hi, even though I have turned the switch on my Honeywell cm67ng to 'off' the heating continues coming on and the boiler is consequently firing up loudly at random times throughout the day. A plumber indicated to us that this was excess energy from using the hot water needing an exit route, however, the heating's sometimes coming on at 11pm, 3am...hours after we've used the hot water. How can I turn it off properly;
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Posted on Jan 02, 2017
You may have a broken thermostat wire. Disconnect the wires from the thermostat and please note what colors are hooked to which terminals. Cross the R and W wires and see if your heating system turns on. If it does not, you have a broken wire or bad connection at the heating system. If it does start, you have a bad thermostat or bad connection at the thermostat.
Posted on Nov 30, 2009
I think that after reading about this product, that it adjusts itself to try to get heat to the comfortable level, before the user expects it to be that temperature. In your case, you do not like it when the thermostat behaves in this way. --- From: ADAM 05 Reply to author
I would try another model of thermostat from Honeywell, as Honeywell has a wide variety of thermostats that will work with your furnace or boiler application.
Good luck on getting a better digital thermostat, or else, get a more manual one.
Date: 2009-12-30 at 13:37
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New post HONEYWELL CM67NG
CORRECT OPERATION OF CONTROLLER IN AUTO MODE
I HAVE A HONEYWELL CM67NG CONTROLLER WHICH I AM HAVING TO USE IN MANUAL MODE ALL THE TIME BECAUSE WHEN I PUT IT INTO AUTO MODE IT SEEMS TO STILL TURN THE BOILER ON WHEN IT IS OUTSIDE THE PRESET TIMES. I BELIEVE IT HAS BEEN LIKE THIS SINCE INSTALLATION SO I AM TRYING TO TRACK DOWN INFO OR WIRING DIAGRAMS ON HOW IT SHOULD BE CONNECTED IN ORDER TO ELIMATE THAT AS THE PROBLEM REGARDSADAM
Someone else had a problem similar to yours, apparently.
Manual abstract:... When the LED is OFF the boiler is OFF.Display shows flashing `battery' symbolImproper battery compartment insertion Batteries need replacingDisplay shows `flame' symbol but heating does not switch onThe heating is not required at this momentWhat is an RF Programmable Thermostat?A Honeywell Radio Frequency (RF) programmable thermostat is a thermostat that controls your heating system so that you can have comfortable temperatures when you are at home and energy savings when you are out. With RF communication there is no need to provide a wired connection between thermostat and boiler. The CM67NG can therefore be installed without disrupting your room decor. These instructions explain how to program and operate your CM67NG to get the most comfort at the least cost.When do I need to use the push button?You should use the push button to control your boiler only when the RF communication is lost (see the CM67NG Trouble-Shooting Guide).What other accessories can I buy for the CM67NG?Automatic Time Setting (ATS) "Add-On" Module * (Part No. Q6667B1015)Display works but heating does not switch on (HC60NG LEDs are off or green one is on)Boiler switched off Wrong electrical connectionHC60NG red LED is constantly on or flashingRF communication lost due to the wrong location of the room unit RF communication faultWhat will the CM67NG Programmable Thermostat do for me?· · · · · · · ·Wireless connection to the boiler allows you to mount the CM67NG in your room without disrupting the decor Armchair programming lets you set up your resting comfortably in your armchair CM67NG whileThe ATS module picks up a daily time signal from a transmitter in the UK and corrects the time on the CM67NG display. So:Call installerOptimum Start means that the CM67NG will switch on your heating system so that your desired comfort temperature is reached by the start of the program period and thus avoid unnecessary boiler firing Attractive slim styling compatible with any room decor 7 day program lets you set the lifestyle CM67NG to match your weekly· · ·You never need to set or adjust the time There is no need to adjust the unit by -/+ 1 hour in summer / winter since the unit does this automatically Your CM67NG is the most accurate clock in your home so you can use this information to set-up all your other clocks.Remove the battery compartment and re-insert it. If the `spanner' symbol does not clear itself in a few minutes call the installer* Not available in all Geographic Regions depending on transmitter range and home location Table stand for the room unit (Part No. F42010248-002) If you do not want to mount the room unit on the wall you can use optional table stand, ask you installer for details6 daily independent temperature levels let you set any 6 temperatures from 5 to 30°C at any time each day, to match your daily lifestyle Party button lets you temporarily maintain (or adjust) the current temperature for 1 - 23 hours. Useful when you have friends round or go out of the house for a short while Day Off button copies Sunday's program into tomorrow so that you can make the CM67NG follow the Sunday program if you have a ...
From: ADAM 05
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Posted on Oct 13, 2010
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