Get support for Honeywell RTH7400

Honeywell RTH7400 Support Question

Honeywell RTH7400 Support Question

Find answers below for this question about Honeywell RTH7400.
Need a Honeywell RTH7400 manual? We have 1 online manual for this item!
Question posted by rjlongo on December 25th, 2012

System Auto Mode Not Appearing

We have a singe stage heating/cooling system and have wired the thermostat as specified in the instructions. When we step through System Modes, Auto does not appear.  There is a note in the manual that says it may not appear based on how the theromostat was installed.  But no futher information. Any idea what causes this behavior?

Current Answers

There are currently no answers that have been posted for this question.
Be the first to post an answer!

Remember that you can earn up to 1,100 points for every answer you submit. The better the quality of your answer, the better chance it has to be accepted.

Related Honeywell RTH7400 Manual Pages

Owner's Manual - Page 1

Operating Manual RTH7400/RTH7500 Series Programmable Thermostat 69-2222EF-03
Owner's Manual - Page 2

...-free at 1-800-468-1502 Read and save these instructions. ® U.S. All rights reserved. Registered Trademark. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C). This manual covers the RTH7400 and RTH7500 models. (Pull thermostat from wallplate and turn over to find model number) This...
Owner's Manual - Page 3

... 8 Using program schedules 9 Program schedule overrides 13 Auto Changeover 15 Filter reminder 17 Special features 18 RTH7400/RTH7500 Series Appendices Battery replacement 19 Customer assistance 20 In case of difficulty 21 Limited warranty 23 This thermostat is pre-programmed and ready to go ! Your new thermostat is ready to check settings. 1 69-2222EF-03...
Owner's Manual - Page 5

This thermostat is ready to do is pre-programmed and ready to Heat To change , see pages 10-14 ONE-TOUCH TEMP CONTROL: You can override the program schedule at any time, and manually adjust the temperature (see pages 13-14). 3 69-2222EF-03 Set clock See page 6 2.. All you wake at 6 am, leave...
Owner's Manual - Page 7

... status display Current day of week Current inside temperature RTH7400/RTH7500 Series Current time Smart Response® Technology in effect (see page 15) System setting (see page 8) Mon 75 Recovery System Cool 6:01 AM Fan Auto Set to 75 Heat On System & Fan Schedule Clock & Mode Temperature setting Fan setting (see page 7) M28078 Other display...
Owner's Manual - Page 9

Fan setting Press SYSTEM & FAN System & Fan Schedule Clock & More M28081 Press FAN to select mode, then press DONE RTH7400/RTH7500 Series Press SYSTEM & FAN, then FAN to select fan operation: • On: Fan is always on. • Auto: Fan runs only when the heating or cooling system is on. System Heat System Fan Auto Fan Done M28082 7 69-2222EF-03
Owner's Manual - Page 10

... Heat. Operating Manual System setting Press SYSTEM & FAN System & Fan Schedule Clock & More Press SYSTEM to select mode, then press DONE M28081 System Heat System Fan Auto Fan 69-2222EF-03 Done M28083 Follow steps at left to select system: • Heat: Thermostat controls only the heating system. • Cool: Thermostat controls only the cooling system. • Auto: Thermostat...
Owner's Manual - Page 11

RTH7400/RTH7500 Series Save money by setting program schedules It's easy to the time you awaken and the temperature you leave for the day. WAKE 6:00 ...
Owner's Manual - Page 12

Operating Manual Energy saving settings for maximum cost savings This thermostat is pre-set with energy saving program settings. We recommend these settings, since they can reduce your heating/cooling expenses by as much as 33%. (See next page to adjust times and temperatures of each time period.) Wake (6:00 am) Leave (8:00 am) Return...
Owner's Manual - Page 13

... program schedules (RTH7400 only) Press SCHEDULE System & Fan Schedule Clock & More Press EDIT Go Back Edit M28084 View MON TUE WED THU FRI Go Back Period 6:00 Wake AM M28085 Set to see weekdays. 2. Press SCHEDULE, then EDIT to 62 Heat Next Step Done 1. Press NEXT STEP, then s or t to set Cool temperature for selected...
Owner's Manual - Page 15

Program schedule override (temporary) RTH7400/RTH7500 Series Mon 62 System Heat System & Fan Adjust temperature Temporary Set to 68 6:08 AM Heat On Fan Auto Use Schedule Clock & More Press USE SCHEDULE to resume program schedule M28087 Press s or t to the level you've programmed for the current time period. ...
Owner's Manual - Page 16

... to cancel "Hold" and resume the program schedule. Press HOLD to adjust temperature, then press HOLD. Operating Manual Program schedule override (permanent) Mon 62 System Heat Adjust temperature Set to 6:08 AM 68 Fan Auto Permanent Hold Hold Cancel Press s or t to turn off program schedule and maintain set will turn off the...
Owner's Manual - Page 17

... show both air conditioning and heating are currently adjusting. While in the Auto mode, if a schedule override takes place (temporarily or permanently) the thermostat will also show the thermostat is in climates where both "Auto" and either mode. 15 69-2222EF-03 When the system mode is raising the cool setting up arrow next to "cool" to maintain a 3-dgreee separation...
Owner's Manual - Page 18

...;F (10°C). 69-2222EF-03 16 Operating Manual AubtooutCyhoaunrgneeowvetrhermostat If the cool temperature is lowered to where it gets close to the heat setting, an arrow next to heat will show the thermostat is increasing to maintain a 3-degree separation. Tue 69 1:09PM System Auto Fan Auto Heat Temporary Set To 74 Heat Cool System Hold Cancel M27486 The triangle indicates...
Owner's Manual - Page 19

... Change Filter 70 Set to 6:01 AM 70 Heat On System Fan Auto Heat Reset Schedule Clock & More M28089 Press MORE to reset reminder interval 60 Days Reset Next Done If activated during installation, the furnace filter reminder alerts you when it expires: 1. AFibltoeurtryeomuirndnewr thermostat RTH7400/RTH7500 Series Press RESET after changing the filter, to...
Owner's Manual - Page 20

...Auto Changeover: This feature is used in climates where both air conditioning and heating are used on screen. Operating Manual Special features Smart Response® Technology: This feature allows the thermostat... the temperature is 70° by the time you set to Auto, the thermostat automatically selects heating or cooling depending on the indoor temperature. During the wait time, the message...
Owner's Manual - Page 21

Battery replacement RTH7400/RTH7500 Series Grasp thermostat and pull to run on AC power when installed. The warning flashes about 30... BATT warning begins flashing. Even if the warning does not appear, you should replace batteries once a year, or before batteries are optional (to provide backup power) if your thermostat was wired to remove from wallplate M28103 Batteries are depleted.
Owner's Manual - Page 23

... 90°F (4.5° to 37°C). temperature will • Cool: 50° to 99°F (10° to 32°C). AInbcoausteyoouf rdnifefiwcutlhtyermostat RTH7400/RTH7500 Series If you have difficulty with your thermostat, please try the following suggestions. No response to Make sure heating and cooling temperatures are correctly installed (see page 19). not change) 21...
Owner's Manual - Page 25

... cover removal or reinstallation costs. This warranty shall not apply if it is determined to be defective or malfunctions, Honeywell shall repair or replace it ; RTH7400/RTH7500 Series A1-byoeuatr yliomuirtendewwathrrearnmtyostat Honeywell warrants this product, excluding battery, to be sent to you purchased it (at Honeywell's option). If at 1-800-468...
Owner's Manual - Page 29

Mode d'emploi Série RTH7400/RTH7500 Thermostat programmable 69-2222EF-03

Similar Questions

Blower Blowing Despite One Switch Is Turned To Auto And Heat/cool Switch Is Off
Why does air continue to be blow even with the system switch turned off? Is it because the batteries...
(Posted by beachkitty52 9 years ago)
Honeywell Rth7400 Series Programable Thermostat
how do you change the day on the honeywell rth7400 series programable thermostat
(Posted by Anonymous-36184 12 years ago)
Installing Rth7400 Thermostat
I have all the wires connected but I have a VR left over. Where does it go?
(Posted by dandtg 12 years ago)
Ask a New Question
Use the box below to post a new question about this Honeywell product .
Points & Prizes
  • You can earn points for nearly everything you do on HelpOwl.com
  • You can trade in those points for gift cards at leading retailers such as Amazon.com and Walmart
  • It's that simple!
See How it Works
Create a Free Account

Honeywell Manuals

Find free Honeywell RTH7400 manuals and user guides available at ManualOwl.com. Try out our unique manual viewer allowing you to interact with manuals from directly within your browser!

Honeywell Reviews

View thousands of Honeywell user reviews and customer ratings available at ReviewOwl.com.

Contact Information

Complete Honeywell customer service contact information including steps to reach representatives, hours of operation, customer support links and more from ContactHelp.com.

Scoreboard Ratings

See detailed Honeywell customer service rankings, employee comments and much more from our sister site.

Honeywell Recalls

Find comprehensive Honeywell recall information updated hourly on RecallOwl.com.