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My Honeywell CM67 controls underfloor heating and so has a remote sensor at the water manifold. The problem is that it is using the temperature set on the CM67 it's self. How do I get it to use the remote sensor?

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SOURCE: setting temperature with the remote control

remove the front cover of the airconditioning unit, you will find a sensor bulb, (coppertube with a round tip) close to the coil. pull it away around an inch. either the sensor is taking the coils temp and not the air.

Posted on May 09, 2009

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SOURCE: honeywell cm67 thermostat operating instructions

You can grab a copy of the owner's manual here.

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Posted on Dec 01, 2010

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SOURCE: I have just moved home link to the manual

Posted on Mar 30, 2011

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My thermostat is set on 68 degrees and it shows room temperature is 68, but the furnace still kickson, Honeywell said it has a 1 degree difference. so what's the problem then?

Yes there is a one degree tolerance, in fact my heater just kicked on and it is set to 67 and the inside temperature reads 67. It is also a Honeywell.

Dec 28, 2016 | Heating & Cooling

1 Answer

My water is not heating in heated toilet seat

Hi Nayana.

I'm having a hard time locating a manual, but dug a few things up for the seat. It appears to have temperature adjustments - it's unclear if there are manual ones, or if this is only from the remote control. It also appears to have a separate water tank, rather than a built-in heater. There is also a wall power cord for the heater and other valving / controls / actuators.

If the water is not heating, it could mean that:
  1. The water heater is not ever heating up the water, so you have water the temperature it came in at. That could be a bad heater element, or a broken temperature sensor. Any commercial device heating things that come into contact with people will be built so that if the temperature sensor fails, or a wire breaks, it'll default to not heating. That prevents fires and scalding. This may mean replacing the tank, the heater element, or the temp sensor. You'd have to take that up with the manufacturer.
  2. The temperature control hardware is malfunctioning. If it thinks the water is hot, even if it isn't then it won't heat it. Whatever sets the water temp, see if there's any change as you change the setting.
  3. The water is hot, but is cooling off before it gets to you. Not likely unless you have a hundred-foot-long transfer pipe from the tank.
  4. If it's the seat specifically and not the water, I don't know if the seat is heated by the water, or by an electric heater element. That could again be an issue of heater element, temperature sensor, or what temperature the control thinks it's set for.
  5. The system is unpowered. I don't know if the spray will still work if the system is unplugged. if it is unplugged, then you won't get heat. The reviews specifically say it's tapped into the wall water supply for the toilet, so it'll be cold water coming in.
I hope that helps you narrow it down. Do also make sure the batteries in the remote aren't dead. One review I saw said the remote tends to eat them quickly.

Happy Holidays!

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1 Answer

Underfloor heating wont stop running

Look for a stuck relay that controls the pump

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Directions to program cm 67 thermostat

How do I set one temperature for the whole day?
To operate as a simple thermostat with one temperature throughout the day, move the slider to the MANual position. Adjust the manual temperature by pressing the TEMPerature or button. The manual temperature can be set anywhere from 5°C to 30°C in 0.5°C steps.

Here is the User Guide for the CM67 Thermostat:

May 17, 2011 | Honeywell Heat/Cool Thermostat

1 Answer

How to program Honeywell thermostat for remote sensor

Remote Sensor (Setup Function 0340): If an optional outdoor sensor is installed, the thermostat can display the outside temperature. If an optional remote indoor sensor is installed, the thermostat will display the temperature at the sensor location (the internal sensor in the thermostat is not used).
\ 0 No remote sensor
1 Outdoor sensor (display only)
2 Outdoor control sensor (select heat pumps

Dec 31, 2008 | Honeywell Heating & Cooling

1 Answer

Replacement of heating programmer

yea you should be able to just when you remove the old one mark witch wire went to witch connection by marking it some how i personaly take one wire at a time wrap it with a small piece of white tape and write the letters on the piece of tape then when i replace with the new one i cant mess it up also look for any of the wire connections to see if any have to be or have been jumped out

Nov 14, 2008 | Honeywell Water Heaters

1 Answer

My heat is turning on but the fan isnt working. my honeywell thermostat is showing a flame and a blinking battery, and i know nothing about this thermostat, we just moved in . Can u help?

This is not a PC problem
Heating comes on, but sometimes it
gets too hot, sometimes too cold.
Neutral not connected
Check wiring in room thermostat. Look for a
connection to the Neutral terminal (N 2 on
the Honeywell T6060, T6160, and T6360).
Make sure that it is connected (check
If there is no neutral available, replace with a
two-wire thermostat, e.g., CT200, CM61 or
CM67. These will also offer extra energy
savings, (Without a neutral connection, the anticipator within the room thermostat does not work,
so the temperature control reduces from ± ½ºC to ±3ºC. People can feel a six degree
temperature swing. Then, if they try to adjust the room thermostat to overcome the
problem, the temperature swings become even worse.)

Mar 16, 2008 | Computers & Internet

1 Answer

Loss of temperature control

Is the heater staying on all the time? Most likely cause of themostat trouble is the sensor. Try to find it and measure its resistance at different temps to verify the trouble.

Dec 31, 2007 | Honeywell CT3200 5-2 Day Electronic...

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