Get support for Honeywell CT2800

Honeywell CT2800 Support Question

Honeywell CT2800 Support Question

Find answers below for this question about Honeywell CT2800.
Need a Honeywell CT2800 manual? We have 1 online manual for this item!
Question posted by brbositch on September 7th, 2018

-honeywell Ct2800

fan and heat won't shutoff

Current Answers

Answer #1: Posted by Odin on September 7th, 2018 12:17 PM
This answer was accepted by the poster of the original question.
Odin

Member since:
April 10th, 2010

Points: 41,236,700
1,100
points
The temperature range is 45°F to 88°F (7°C to 31°C). So anything lower than that will not be effective. Otherwise, see Cooling does not come on at https://www.manualslib.com/manual/69816/Honeywell-Ct2800.html?page=23#manual.


Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.

Related Honeywell CT2800 Manual Pages

Owner's Manual - Page 1

... AND PROGRAMMING INSTRUCTIONS Welcome to 30 Vac) Thermostat and Mounting Plate Model CT2800 Table of comfort and energy savings with your home, keeping you comfortable while saving energy. Weekday/Weekend (5-day/2-day) Programmable Heat and/or Cool Low Voltage (20 to the world of Contents Installation ...2 Programming...12 Operation...18 Frequently Asked Questions...
Owner's Manual - Page 2

... the trash. M3701 Make sure that include warm air furnaces and hot water. Compatible with the CT2800, the table recommends an alternate Honeywell model. Heating/Cooling System Conventional Single stage systems that the CT2800 is the correct thermostat for your local waste management authority for 240 volts 69-1638-1 2 Read the compatibility chart below to...
Owner's Manual - Page 3

... cooling are produced from the same outdoor unit (compressor) with auxiliary or backup heat. Honeywell recommends Energizer® • Wire cutter/stripper or sharp knife. Make sure that your receipt and make sure you install the new thermostat. Multistage Conventional A heating or cooling system with 3/16-inch or 7/32-inch drill bit. • Pencil...
Owner's Manual - Page 4

... from the wall, but do not match letters on the old thermostat (Fig. 3). Fig. 4. Step 2. M20140 M19086 WIRES THROUGH WALL OPENING • The old thermostat is a clock thermostat with letter of your old thermostat contains mercury, you must recycle it is attached to the heating/cooling system, either at the furnace or at the fuse...
Owner's Manual - Page 5

Install Mounting Plate Fig. 5. Separate the mounting plate from the thermostat using a coin, as shown in drywall, gently tap the anchors (provided) into each of the drilled holes or anchors (Fig. 6). d. If installing in Fig 5. Make ...
Owner's Manual - Page 6

... F DISPLAY C 3 - NOTE: This setting enables proper fan operation. Set Thermostat for the type of heating system. OFF E W Y G FUEL SWITCH F E W Y G C R RC C RC M20637 IMPORTANT: Setting your thermostat correctly for a warm air, gas, or oil heating system. You can wait until the thermostat is set for your thermostat now, or you want to display the...
Owner's Manual - Page 7

...See Special Wiring Instructions section. Using the labels on the wires, match letter of your old thermostat wire with an efficiency rating under 90%. (The furnace efficiency rating should be on the furnace.)...7 69-1638-1 Wire Thermostat Terminals Fig. 9. Fig. 10. 5/16 in Fig. 9. Heating System Table Type of System Warm air, gas, or oil heating system with the corresponding ...
Owner's Manual - Page 9

...heating/cooling system is set in Fig. 13. e. You will not connect these wires to insulate the wires. f. Using a coin, open the battery door as marked inside the battery case. e. Special Wiring Instructions Clock thermostat with the operation of the new thermostat. c. Honeywell... clock to avoid damaging your new CT2800 Thermostat and must be installed for programming and...
Owner's Manual - Page 10

...-installed metal jumper between the R and Rc terminals (Fig. 15). See the thermostat compatibility table for installation assistance. R Rc WY G Fig. 15. If you have a three-wire heating-only system and cannot operate the fan using the fan ON switch, the CT2800 Thermostat will probably NOT work with your system. Wires that are not connected to...
Owner's Manual - Page 11

... B installation C, X, B W2, H2 Y2 Do not connect Do not continue installation. You have a multistage heating/cooling system. Second stage heat (W2, H2) or second stage cooling (Y2). Transformer common. Select an alternate thermostat model. Description Power Power for cooling Heat Cooling Fan Changeover in cool (O terminal) or changeover in 5-wire systems. 11 69-1638-1 Old...
Owner's Manual - Page 12

... SU TEMPORARY WAKE LEAVE RETURN SLEEP 4 Set Time Temp Mode 3 Clock/Day Run Program 2 Schedule Hold Temp 1 Fan Auto On System Cool Off Heat Descriptions 1 Fan switch-Selects automatic fan operation or fan on. 2 Set Schedule-Puts the thermostat into programming mode. 3 Set Clock/Day-Sets the clock and day. 4 Time Ahead and Back-Sets the...
Owner's Manual - Page 13

... and the current temperature are defined in the following table. 13 69-1638-1 Learn About Programming Features Your CT2800 Thermostat allows you to two program periods for both a heating season and a cooling season. • During the heating season, you can set the normal room temperature higher and the energy-saving temperature lower. • The...
Owner's Manual - Page 14

... . RETURN The time between returning home and going to program times and temperatures for all program periods. If you decide not to program your thermostat, it automatically controls heating at 68°F (20°C), and cooling at a comfortable temperature for this period. Using sharp fingernails or pencil points can set up an...
Owner's Manual - Page 17

... Temp until the setting is 10°F (6°C) below 50°F (10°C). 17 69-1638-1 Repeat steps 3c. c. Set the System switch to Heat, and the Fan switch to COOL. b. Verify that your cooling system works IMPORTANT: To avoid damaging the compressor in the times and temperatures you want to program...
Owner's Manual - Page 18

... the compressor. g. Set the System switch to Off and the Fan switch to Auto. The cooling system and fan should start. Press Clock/Day once. The current time and day... Clock for Daylight/Standard Time a. Set the System switch to Cool, and the Fan switch to Auto. d. The time is changed, thermostat can delay up to five minutes before turning on air conditioner. NOTE: When cooling...
Owner's Manual - Page 19

System Cool Off Heat NOTE: In a heat-only system, the fan runs continuously only if the fan wire has been connected to the G terminal on the bottom of the thermostat faceplate control the operation of your heating system. Both the heating and air conditioning systems are inserted within the month. Make sure that the System switch is the...
Owner's Manual - Page 20

... a year to prevent heating/cooling system from shutting down due to temperature lasts for current program period only. NOTE: A temporary change to lack of battery power in thermostat. NOTE: If "bAt... indicating that positive and negative terminals are oriented as marked inside battery case. Heating/cooling schedule you programmed resumes when next scheduled program period is temporary (Fig. ...
Owner's Manual - Page 22

... sure AM and PM indications are fresh and installed correctly. Set System switch to reset thermostat. Replace batteries correctly; display should come on. b. Make sure the batteries are correct. Remove batteries and insert backward for programming heating schedule or programming cooling schedule. The batteries are correct. Reprogram if necessary. 69-1638-1 22...
Owner's Manual - Page 23

... call Honeywell Customer Care at the register. If display is blank or says "bAt Lo," install fresh batteries. The thermostat has a built-in the wall behind the mounting plate with insulation to prevent drafts that it is set to COOL. CUSTOMER ASSISTANCE Visit us on cooling. If... Type of the thermostat. Check for heat...
Owner's Manual - Page 24

...(ii) package it carefully, along with Canadian Radio Interference Regulations, CRC c.1374. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL ...do not allow limitations on how long an implied warranty lasts, so the above . Honeywell Limited-Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough...

Similar Questions

My Thermostat Keeps Resetting The Heat Temperature To 40 Degrees F.
Woke up cold this morning. The thermostat was set on 40 degrees. It was 51 in the room. No one admit...
(Posted by Dgonano1 1 year ago)
Thermostat Not Registering Any Heat And Temp Is Just Dropping.
The heat is just dropping and not working for over 6 hours now. I have increased the heat setting to...
(Posted by shelleyrr 8 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...
(Posted by Anonymous-153322 8 years ago)
Coroded Battery Terminal Of Ct2800 Broke Off. How To Fix It?
Tried to replace batteries in my Honeywell CT2800 thermostat, but one terminal was slightly coroded ...
(Posted by ohsuziq 9 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 CT2800 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.