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Honeywell programable thermostat not recognizing nigh time settin

The thermostat is set for a 5-2 day schedule. At 11:00 pm the temp should hold at 62 degrees. Shortly after 11 the heat goes on and it runs at the return setting of 68 (WTF), it gets too hot to sleep. It's set to go to 68 at 4:30 am.

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This is the problem you have when you rely on "modern electronics". Suggest you buy a manual 'stat and just turn down the temp at bedtime. Make it cold and use a blanket, that is what we did in the " good 'ole days".

Posted on Jan 15, 2009

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Why does my Honeywell thermostat state temporarily set at 68 degrees? A few days later, it will be set at 62 degrees without anyone touching the thermostat?


It's a programmable thermostat. When you change the temperature, it will say temporary until the next programmed schedule starts or a set amount of time. You will have to program the thermostat to the correct temp settings you wish to have, or you can push "HOLD" after changing the temp to make it stay at that set point. Hope this helps!

Nov 19, 2016 | Heating & Cooling

1 Answer

Honeywell cm61 wireless programmer switches heat on before set time


Overlapping time periods can cause a lot of trouble. Removing the battery's will erase any programming that may have been done before now. The factory program is just for basic operation and they don't normally have any schedules or operational customer programs in them. The factory program will not be affected by removing the battery's. It's also much easier to do all this while sitting at a table and not hunched over at the wall. Remove the old battery's and replace them with new ones. The battery's are used to store your programming so be sure to put good battery's back in before starting. I will change this to use the word "Program" in place of the word "PERIOD" that I am most familiar with. Its a little complicated, but I think it will solve your problem. --------->One "SCHEDULE" covers a 24 hour block of time or One Day. Each block of time in the schedule from a "start time" to a "stop or temperature change time" is one "PROGRAM" in the "SCHEDULE". Here is an example of how to program one complete "SCHEDULE", (One day of 24 hours) Containing 4 Programs . ----- Get a large piece of paper and write down EXACTLY what you want your thermostat to do in ONE, 24 hour day. THE EXAMPLE> ----- You want your furnace to start at 5:00 AM and warm the house to 72 degrees by 5;30 when you get up. Write down "72 degrees from 5;00 AM to 6;30 AM", or when you expect to leave the house. Then write down "62 degrees from 6;30 AM to 4;00 PM" or 30 minutes before you expect to be home. Then write down "72 degrees from 4;00 PM to 10;30 PM" or when you expect to go to bed. Then write "62 degrees from 10;30 PM to 5;00 AM" or 30 minutes before you expect to get up.-----< You have just covered a 24 hour period of time using 4 Programs and created ONE "SCHEDULE". Each day of the week needs a schedule. Various thermostats are different in how they handle schedules. You will need to read your "Owners Manual" to find how your thermostat arranges its schedules. To get started, look for a "SET" button or touch sensitive area on the display screen. If there is no SET button you can see, check your manual for the button to press to put the thermostat in its programming mode. With some thermostats, the display will blink or change color to let you know you are programming. While in this mode, use the temperature set point arrows ( up and down) to scroll through all the different things that can be set ( Programmed ). When you hit one you are looking for, press the left and right arrows or buttons to set that function or time where you want it. Press the up and down arrows to get to the next adjustment, use the left and right arrows or buttons as before to set that function. Keep doing this until you have gone through all the various functions and set points for one 24 hour day. DOUBLE CHECK all your times and temperature changes against the desired operation you wrote down. Be extra careful none of your start and stop times for the temperature resets overlap each other. If you programmed in Holidays or special events you may have, be sure the TIME and DATE are correct. Press the "RUN" or "START" button to lock it all in and start your programs running. Again, be careful of overlapping the times in each "PROGRAM" of each daily "SCHEDULE". Overlapping times can keep your system running all the time, starting and stopping or changing temperatures, or maybe even not run at all. I hope all this will help you to better understand these complicated devices called thermostats. Thermostats are a deep subject and specific factory information in your owners manual may be needed to get you through. I hope this helps though. At least a little. The main trick to getting them right is to write it down before starting and make sure it covers a 24 hour day. Again, be extra careful of overlapping times from program to program and you should be OK. Good Luck. Roger.

Jan 26, 2014 | Heating & Cooling

1 Answer

Trying to set temp on honeywell t-stat


I believe what your experiencing is the 75 degrees is the hold temp position...the display then reverts back to the actual room temperature...it doesn't mean the set temperature changed back to 65 degrees. Try to reprogram the thermostat schedules, and try not to use the hold function...just the temporary hold. (which is bumping the programmed temperature up or down until the next programmed period)

Dec 09, 2013 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell t stat rlv430 need to program to turn off every day at 700 am lower temp to 62 and on at 730pm raise to 70. need instructions on how to reset


WARNING: When the thermostat is reset, all parameters (clock, configuration

and schedules) return to their default settings.

?? Open the thermostat's door.

?? Press and hold the Pgm button.

?? Insert a pointed object (e.g., paperclip) in the reset opening.

Remove it when the thermostat's screen becomes blank.
?? Wait one second and release the Pgm button.



http://customer.honeywell.com/techlit/pdf/69-0000s/69-1855.pdf for complet instructions

Jan 21, 2011 | Honeywell Heating & Cooling

1 Answer

We have a honeywell cm921 and we cant set the therm astat to come on in the mornijng and then go off then come on again in the afternoon on timer please can you help


Your CM921 has 6 built in temperature settings based on time of day:

1 - 6:30 AM
2 - 8:00 AM
3 - 12:00 PM
4 - 2:00 PM
5 - 4:00 PM
6 - 10:30 PM

meaning that at 6:30 AM the themostat will change its temperature setting to setting 1, at 8:00 AM it will change the temperature setting to setting 2, and so on. To schedule temperature settings which best fit you, determine which time periods you would like more or less heat.

For instance, to fit what you requested in your question you could program a temperature you would like to maintain in the morning and afternoon times when you would like it to be on, and in the time periods in between set a lower temperature as follows:

1 - 20C
2 - 16C
3 - 16C
4 - 20C
5 - 20C
6 - 16C

With this example your thermostat would turn on at 6:30 AM as long as the temperature was below 20C and maintain that temperature until 8:00 AM. At 8 it would change its setting to 16C allowing temperature to drop from 8 AM to 2 PM to a lower setting to conserve energy until afternoon time when the setting would change back to 20C from 2 PM to 10:30 and then change back to 16C to save energy throughout the night. The actual temperatures would be at your discretion based on your individual comfort level.

Pages 5 and 6 of the following link will guide you in setting each of the 6 temperature settings.

http://www.wolseleysbc.co.uk/_STEPData/Assets/Honeywell%20CM921%20Room%20Thermostat.pdf

I hope this helps. Let me know if you have any additional questions.

Dec 10, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

I have just moved home and we have a Honeywell CM61 Prog.Thermostat but no operating instructions.Can you help?


Push run program for a preset schedule, once in the schedule you can change times via up/down temp buttons, push next to set next schedule period and so on. Otherwise push hold temp or hold to overide the program and run as a regular stat, for more info 1800 honeywell or Google support.

Nov 01, 2010 | Heating & Cooling

1 Answer

My Honeywell TH4210D1005 Thermostat will not respond


well with 62 outside temp and then maybe a little solar gain and body heat you very well could be 5 degrees warmer then outside

Apr 06, 2009 | Honeywell TH4210D1005 Heater

1 Answer

Have gas furnace and this winter,began having


The Thermostat Wizard is an interactive tool that will guide you through wiring and troubleshooting your thermostat, as well as programming it to the most comfortable settings for you and your family. Simply answer the questions from the Thermostat Wizard to correctly connect, troubleshoot and/or program your Honeywell Thermostat. You can even print the instructions and bring them right to the thermostat to help make things easier.
Go to: http://yourhome.honeywell.com/Consumer/Cultures/en-US/Support/Thermostat+Wizard/

However - the problem is probably not with your thermostat but with your furnace. It is most likely a dirty flame sensor - a maintenance issue. If you have not had your furnace serviced recently (more than 1 year) that is where you should start. Modern furnaces require regular maintenance.


Please rate my answer!

Feb 28, 2009 | Honeywell Electronic Programmable...

1 Answer

Thermostat temperatures not reaching preset Energy Star settings


Well with a boiler system like you have it will cost you more money to heat your house that way than if you leave it like it is. With a boiler system it takes a lot longer to heat an area than with a furnace. The best thing you can do is find a happy medium and leave it there at all times. If you read the paper work on your new thermostats they have a set procedure which tells the thermostat if you have forced air or boiler system. Do you have baseboard or in-floor heat how many zones do you have.

Jan 07, 2009 | Honeywell Electronic Programmable...

5 Answers

Honeywell thermostat RTH230B


Sound like you need new one... take a look on amazon ecobee3 Smarter Wi Fi Thermostat Remote Sensor. It's not worth repairing it..

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