Honeywell CT3400 Support and Manuals

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Most Recent Honeywell CT3400 Questions

Thermostat Issues
How do I take off temporary on a honeywellThermostat CT3400
(Posted by jburton698 2 years ago)
Ct3400 Equivalent
is there a honeywell ct3400 equivalent.Thank, Paul @home depot 4653
(Posted by prodesk4653 3 years ago)
Thermostat Will Not Trigger Heat After Replacing Batteries
My thermostat batteries died while away. I replaced them and it appears to be working but no matter ...
(Posted by rfeldman5 7 years ago)
Blank Screen But Fan On Works
I came upstairs to find the floor very warm and humid. I went to the thermostat and the screen was b...
(Posted by tkhand 8 years ago)
Thermostat Needed Battery, Replaced, Does Not Work
replaced batteries, will no let us program it
(Posted by dsilkworth 9 years ago)

Popular Honeywell CT3400 Manual Pages

Owner's Manual - Page 1

... cost savings TYPICAL ENERGY SAVINGS FOR REPRESENTATIVE CITIES IN THE U.S. Rev. 4-97 ©Honeywell Inc. 1997 Printed in U.S.A. 69-0733-3 PROGRAMMING AND INSTALLATION INSTRUCTIONS Honeywell/34 Model CT3400/CT3455 THERMOSTAT Low Voltage (20 to 30 Vac)Thermostat and Wallplate PROGRAMMABLE Programmable Heat and/or Cool Weekday/Saturday/Sunday Approximate percentage of these savings...
Owner's Manual - Page 2

...for instructions regarding recycling and the proper disposal of energy and money by the time you to sleep. s Saves the maximum amount of this manual....Honeywell Thermostat. You made a smart choice when you leave home or go on to have questions, call Honeywell Inc. It's the smart thermostat that contains mercury in the trash. Recycling Thermostat M3375 If this thermostat is replacing...
Owner's Manual - Page 3

... Wallplate Terminals 21 STEP 9 Mount The Thermostat 24 STEP 10 Check Thermostat Operation After Programming and Installing 25 STEP 11 Set the Fan and System Switches 28 Troubleshooting Guide ...30 Index ...34 Limited One-Year Warranty ...36 1 69-0733-3 STEP 1 Prepare For Installation s Check Table 1 to retailer. For more information, call Honeywell Customer Assistance, toll-free 1-800...
Owner's Manual - Page 5

... batteries are running low, a REPL BAT indicator will flash for programming and operation of removing the old ones, you most likely have three wires for heating only and can damage your transformer. onds of the thermostat and heating/cooling system. If there are six or more wires? If you will have to reprogram. Replace the batteries...
Owner's Manual - Page 6

... on your home gradually reaches the comfort temperature you set at the factory-set Adaptive Intelligent Recovery™ setting, or adjust it to turn . We recommend Energizer® batteries. IMPORTANT: Although the thermostat has a low battery indicator, replace the batteries once a year to prevent leakage and to prevent the thermostat and heating/cooling system from shutting down due to...
Owner's Manual - Page 7

... points can set one schedule for...error, just press the RUN PROGRAM key, and continue again at a comfortable temperature for an energy-saving temperature while you are sleeping. (Again, lower heat or higher cool. You can also change NIGHT or cancel it automatically controls to this programming section. STEP 4 Program The Thermostat After the batteries are installed, the thermostat...
Owner's Manual - Page 9

... your new thermostat, use a Time and Temp to SUN. Press and release Morning ; Repeat steps as you did for cooling; With system switch at HEAT, press and release Morning . Press and release Morning ; Repeat steps as desired. a Press on to program the temperatures. Batteries are required for programming and operation. SET PRESENT DAY...
Owner's Manual - Page 10

...Thermostat Wallplate s Position wallplate on display, and cancels itself at next scheduled change. Use a pencil to cancel. Temp ; Program Hold a temperature indefinitely (such as applicable. Program a , Temp Hold appears Current Check current temperature setting...69-0733-3 INSTALLATION to normal program or start program- Hold Temp on vacation)- Permanently Change a program-...
Owner's Manual - Page 12

... left battery 4A must be removed to a fan relay. s The thermostat is connected to access the switch. FAN OPERATION SWITCH (SHOWN IN NON ELEC POSITION) M619C 20 69-0733-3 INSTALLATION This is the correct setting for most systems. If your system is factory-set the switch to turn . IMPORTANT: When using the illustration as a guide. The...
Owner's Manual - Page 14

... HEAT ONLY (JUMPER INTACT) W G R RC Y THERMOSTAT 5-WIRE HEAT/COOL (JUMPER REMOVED) W G R RC Y THERMOSTAT HEATING RELAY OR VALVE COIL FAN RELAY 1 1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 1 M 615A 23 69-0733-3 STEP 9 Mount The Thermostat AM MON DAYTIME HEAT ON A. PRESS LOWER EDGE OF CASE TO LATCH M5143 69-0733-3 INSTALLATION
Owner's Manual - Page 15

... See compressor manufacturer instructions for further information. NOTE: When cooling setting is changed, thermostat may delay up arrow of key until the setting is about 10&#...setting is Temp about 10°F (6°C) below room temperature. In- This delay protects the compressor. Heating should start . STEP 10 Check Thermostat Operation After Programming And Installing...
Owner's Manual - Page 17

... COOL 29 69-0733-3 Troubleshooting Guide IF... s Gently clean battery contacts using a soft pencil eraser. s You have reached the temperature setting limit. Temperature change occurs at least five seconds to 31°C). Make sure the current day and time are off. HEAT OFF COOL COOL: The thermostat controls your air conditioning system. Replace batteries correctly. Reprogram if...
Owner's Manual - Page 18

... verify that R-Rc jumper is blank or displays REPL BAT, install fresh batteries. s Check that switch on thermostat is blank or displays REPL BAT, install fresh batteries. If display is installed. s If temperature setting is higher than current temperature, and COOL is set to ten minutes after ten minutes and COOL is displayed, contact Honeywell Customer Assistance at 1-800-468-1502. If...
Owner's Manual - Page 19

... Intelligent Recovery 7,8 Batteries, installation 6 Batteries, replacement ........ 6,7 Blinking display 6 Canceling programs 15 Change temperature 15 Checking current setting ....... 15 Clock display...changes 15 Time 13 Time period 9,10,11,12 Troubleshooting ..... 30,31,32,33 Warranty 36 Weekday program 9,10,11,13,14 34 69-0733-3 s Be aware that might adversely affect thermostat...
Owner's Manual - Page 20

...Honeywell shall repair or replace it is a Class B digital apparatus, which complies with a bill of sale or other dated proof of purchase, to the thermostat. in the possession of incidental or consequential damages, so this thermostat, please read and follow the instructions...prepaid, to the following information available-thermostat model number and date code, type of heating/cooling system ...

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  • Owner's Manual

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