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Most Recent Honeywell CT2800 Questions
Honeywell Ct2800a Thermostat Not Working
It won't come on. No A/C nor heat. Already reset, still not working. Help!
It won't come on. No A/C nor heat. Already reset, still not working. Help!
(Posted by miadm2008 1 year ago)
Have A Code That Appears On My Display
Lately, while the AC unit is running, there is a SA code on the display below the temperature displa...
Lately, while the AC unit is running, there is a SA code on the display below the temperature displa...
(Posted by francocarlesimo 7 years ago)
I Have A Chirping Sound Coming From My Ct2800 Thermostat.
My CT2800 starting a chirping sound. Same sound a smoke detecter makes, I changed the battries but s...
My CT2800 starting a chirping sound. Same sound a smoke detecter makes, I changed the battries but s...
(Posted by Anonymous-153322 8 years ago)
Display Is Blank And Heat Not Working
I attempted to adjust the heat by turning it up a little and suddenly, the screen went blank. I repl...
I attempted to adjust the heat by turning it up a little and suddenly, the screen went blank. I repl...
(Posted by kotikmama 9 years ago)
Popular Honeywell CT2800 Manual Pages
Owner's Manual - Page 1
... Asked Questions ...22 Customer Assistance ...23 Limited Warranty ...24
® U.S. Your new thermostat will automatically control the temperature in your new Honeywell Programmable Thermostat. CT2800 Programmable Thermostat
INSTALLATION AND PROGRAMMING INSTRUCTIONS
Welcome to 30 Vac) Thermostat and Mounting Plate Model CT2800
Table of comfort and energy savings with your home, keeping you...
Owner's Manual - Page 2
... compatibility chart below to 240 volts.
Compatible with the CT2800, the table recommends an alternate Honeywell model. Contact your system, visit us on the Web at www.honeywell.com/yourhome or call Honeywell Customer Care at 1-800-468-1502. Installation
MERCURY SWITCH
INSTALLATION
Verify You Have Correct Thermostat
Fig. 1. Heating/Cooling System
Conventional Single stage systems that...
Owner's Manual - Page 3
... not operate the cooling system when the temperature outdoors is a problem with either system, call a heating/air conditioning contractor-the problem may persist after you have the following parts: • Thermostat and mounting plate • Labels • Screws and anchors • Installation and Programming Instructions
2.
If there is below .
Save your heating and cooling...
Owner's Manual - Page 6
...176;F). To install the batteries, see the Programming section.
69-1638-1
6 Set Thermostat for your heating system uses: F- NOTE: This setting enables proper fan operation. OFF
E
W Y G
FUEL SWITCH
F
E
W Y G C R RC
C
RC
M20637
IMPORTANT: Setting your new thermostat for a warm air, gas, or oil heating system. Use DIP switches 1 and 2 on the back of the thermostat to set to find...
Owner's Manual - Page 7
... terminal (Fig 10).
Wire Thermostat Terminals
Fig. 9. G Y
W R
NOTE: If letters on old thermostat terminals do not match letters on new thermostat terminals, all old wires may not need connecting to new thermostat. Hold thermostat as a 90% or greater AFUE (Average Fuel Utilization Efficiency) unit
Hot water boiler
Electric furnace
DIP Switches 1 and 2
Use factory setting 1-On; 2-On
1-Off...
Owner's Manual - Page 9
...the digital display flashes all entries once, then begins to your electrical circuit.
Special Wiring Instructions
Clock thermostat with the installation.
9
69-1638-1 These wires are not used during the installation of the thermostat and heating/cooling system. a. c. e. nals are now ready to operate. Replace the battery door. You are oriented correctly as shown in the OFF position...
Owner's Manual - Page 10
... or more wires
If your old thermostat has six or more wires (excluding clock wires attached to the C or C1 terminals), your system. See the thermostat compatibility table for information about which programmable thermostat will not connect these wires to your heating contractor for heating only and can operate the fan using the fan ON switch, the CT2800 Thermostat will work...
Owner's Manual - Page 11
... (W2, H2) or second stage cooling (Y2). Old Thermostat Terminal
Connect to wire the new thermostat.
Transformer common. You have a single-stage heat pump or zoning system. You have a multistage heating/cooling system. Select an alternate thermostat model. Select an alternate thermostat model.
*Remove factory-installed jumper between R and Rc terminals in heat (B terminal).
Owner's Manual - Page 13
... is displayed (Fig. 18).
Run
e.
Learn About Programming Features
Your CT2800 Thermostat allows you will want to set up to four program periods for the weekdays (Monday-Friday), and up... defined in the following table.
13
69-1638-1
Fig. 17.
For each season, you can set the normal room temperature higher and the energy-saving temperature lower.
• The reverse is true ...
Owner's Manual - Page 18
... Auto. Your cooling system and fan should be off. NOTE:
When cooling setting is displayed. Press Clock/Day once. b.
This delay protects the compressor. Set the System switch to Off and the Fan switch to Auto. The time is changed, thermostat can delay up to five minutes before turning on air conditioner.
Fig. 26. e. f. g.
Press...
Owner's Manual - Page 19
... dead or incorrectly installed and reprogramming is set the System switch. Your heating/cooling system is blank, batteries are off. Make sure that the System switch is needed . ... conditioner or furnace.
b. Dead
Replace the batteries immediately. Set Fan and System Switches
The switches on the back of the thermostat. Set the Fan switch first and then set to remove them. The fan ...
Owner's Manual - Page 20
... temperature lasts for current program period only. An arrow is set the System switch to lack of battery power in thermostat. Close the battery door and set to the schedule. IMPORTANT: Replace batteries once a year to prevent heating/cooling system from shutting...:
A temporary change batteries before making any changes to either HEAT or COOL before leaving. e.
Install new batteries.
Owner's Manual - Page 22
... shows flashing "bAt Lo."
•
•
Temperature change occurs at wrong • times
Then... Replace batteries correctly; Temperature limit setting is 45°F to 88°F (7°C to reset thermostat. If "bAt Lo" continues to display after replacing batteries, set System switch to Off. Reprogram if necessary.
69-1638-1
22
display should come on. range is...
Owner's Manual - Page 23
... RUN PROGRAM to come on occasion. During recovery from setback or setup, setting and displayed room temperatures can differ for correct wiring and good connections. Check that might adversely affect thermostat operation. If display is blank or says "bAt Lo," install fresh batteries. Check the system fuse or circuit breaker and replace or reset if necessary.
Owner's Manual - Page 24
... an implied warranty lasts, so the above limitation may not apply to repair or replace the product within a reasonable period of time.If the product is defective or malfunctions, Honeywell shall repair or replace it (at Honeywell's option) within the terms stated above.
LIMITED WARRANTY
Honeywell warrants this product, excluding battery, to be to you purchased it...
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