Honeywell Home RTH2300B Programmable Thermostat
View all Honeywell Home thermostat manual
Specifications
- Product Dimensions
3.5 x 1 x 4.75 inches - Item Weight
4 ounces - Power Source
Battery Powered, Electric - Controller Type
Temperature Control - Voltage
240 Volts - Material
Plastic - Screen Size
6 - Control Method
Touch - Backlight
Yes - Mounting Type
Protruding - Control Type
Temperature Control - Batteries
2 AA batteries - Pattern
Thermostat - Thickness
1 Inches - Display Style
LED-backlit - Battery Cell Type
Alkaline - Brand
Honeywell Home
Introduction
Your weekend routine is different from your weekly timetable. Your workday and weekend routines can be individually programmed on the flexible Honeywell Home Programmable Thermostat, allowing you to genuinely control the temperature on your schedule. Push-button climate control is provided for you by this adaptable thermostat. This straightforward solution keeps you in control regardless of your lifestyle thanks to the addition of weekend schedule flexibility and the classic features you enjoy, such as backlit display, exact +1/-1 operation, temporary and permanent override, and temporary override.
What’s In the Box?
- Thermostat
- User Manual
CAUTION EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not operate the cooling system when the outdoor temperature is below 50°F (10°C).
About your new thermostat
Your new Honeywell thermostat has been designed to give you many years of reliable service and easy-to-use, push-button climate control.
Features
- Backlit display on RTH2300
- Displays ambient (measured) temperature at all times
- One-touch access to the setpoint temperature
- Preset program settings
- Temporary and permanent override of schedule
- Built-in compressor protection
This thermostat is ready to go!
Your new thermostat is pre-programmed and ready to go. All you have to do is set the time and day. Then check the settings below and change them if needed
- Set time and day (required for proper operation)……………………. See page 6
- Select system setting: Preset to Off………………………….. To change, see page 7
- Select fan setting: Preset to Auto…………………………….. To change, see page 8
- Program schedules: Preset to energy-saving levels while you’re at work or asleep ……………………………… To change, see pages 9-12
ONE-TOUCH TEMP CONTROL
You can override the program schedule at any time, and manually adjust the temperature (see pages 13-14).
Quick reference to controls
A quick reference to display screen
Set the time and day
Press SET, then select current day.
- Press the SET button, then press
s 
or t to set the clock time. - Press the SET button, then press s or t to select the day of the week.
- Press RUN to save & exit.
Note
If the clock flashes, the thermostat will follow your settings for the Monday “Wake” time period until you reset the time and day.
Select the system setting
The SYSTEM switch can be set to control your heating or cooling system, depending on the season.
- Cool
Cooling system control. - Off
All systems are off. - Heat
Heating system control.
CAUTION
EQUIPMENT DAMAGE HAZARD. To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C).
Select the fan setting
- Set the FAN switch to Auto or On.
- In “Auto” mode (the most commonly used setting), the fan runs only when the heating or cooling system is on.
- If set to “On,” the fan runs continuously
Save money by setting program schedules
It’s easy to program your system for maximum energy savings. You can program four time periods each day, with different settings for weekdays and weekends.
- Set to the time you awaken and the temperature you want during the morning, until you leave for the day.
- Set to the time you leave home and the temperature you want while you are away (usually an energy-saving level).
- Set to the time you return home and the temperature you want during the evening, until bedtime.
- Set to the time you go to bed and the temperature you want overnight (usually an energy-saving level).
About your new thermostat Energy saving settings for maximum cost savings
This thermostat is pre-set to use 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.)
To adjust program schedules (RTH2300)
- Press SET until Set Schedule is displayed.
- Press s or t to set your weekday Wake time (Mo-Fr), then press SET.
- Press s or t to set the temperature for this time period, then press SET.
- Set time and temperature for the next time period (Leave). Repeat steps 2 and 3 for each weekday time period.
- Press SET to set weekend time periods (Sa & Su), then press RUN to save & exit.
Note
Make sure the thermostat is set to the system you want to program (Heat or Cool).
To adjust program schedules (RTH221)
- Press SET until Set Schedule is displayed.
- Press s or t to set your Wake time (Mo-Su), then press SET.
- Press s or t to set the temperature for this time period, then press SET.
- Set time and temperature for the next time period (Leave). Repeat steps 2 and 3 for eachtime period.
- Press RUN to save & exit.
Note
Make sure the thermostat is set to the system you want to program (Heat or Cool).
Program shedule override ( temporary)
Press to cancel temporary setting and resume program schedule.
Note
Make sure the thermostat is set to the system you want to control (heat or cool).
- Press s or t to immediately adjust the temperature. This will temporarily override the temperature setting for the current time period.
- “Temporary” will appear on the display and the current program period will flash.
- The new temperature will be maintained only until the next programmed time period begins (see page 9).
- To cancel the temporary setting at any time, press RUN.
Press to permanently adjust temperature.
Press to cancel “Hold” setting and resume program schedule.
Note
Make sure the thermostat is set to the system you want to control (heat or cool).
- Press HOLD to permanently adjust the temperature. This will override the temperature settings for all time periods.
- The “Hold” feature turns off the program schedule and allows you to adjust thethermostat manually, as needed.
- Whatever temperature you set will be maintained 24 hours a day, until you manually change it, or press RUN to cancel “Hold” and resume the program schedule
Built-in compressor protection
Message flashes until safe restart time has elapsed.
- This feature helps prevent damage to the compressor in your air conditioning or heat pump system.
- Damage can occur if the compressor is restarted too soon after shutdown. This feature forces the compressor to wait 5 minutes before restarting.
- During the wait time, the display will flash the message Cool On (or Heat On if you have a heat pump). When the safe wait time has elapsed, the message stops flashing and the compressor turns on.
Battery replacement
- Install two fresh AAA batteries when Lo Batt flashes on the screen. LoBatt appears for 60 days before the batteries are depleted.
- Replace batteries once a year, or when you will be away for more than a month.
- Most settings are stored in nonvolatile (permanent) memory. Only the clock and the day must be set after you replace the batteries.
Set the System switch to Off before removing the batteries. Otherwise, the heating/cooling system could remain activated even when batteries are removed.
Customer assistance
For assistance with this product, please visit
http://yourhome.honeywell.com
Or call Honeywell Customer Care toll-free at 1-800-468-1502.
To save time, please note your model number and date code before calling
In case of difficulty
If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily.
1-year limited warranty
Honeywell warrants this product, excluding battery, to be free from defects in the workmanship or materials, under normal use and service, for a period of one (1) year from the date of purchase by the consumer. If at any time during the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at Honeywell’s option).
If the product is defective
- Return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
- Call Honeywell Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should be returned to the following address: Honeywell Return Goods, Dock 4 MN10-3860, 1885 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Honeywell that the defect or malfunction was caused by damage which occurred while the product was in the possession of a consumer.
Honeywell’s sole responsibility shall be to repair or replace the product within the terms stated above. HONEYWELL SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE ONE-YEAR DURATION OF THIS WARRANTY.
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. This warranty gives you specific legal rights, and you may have other rights which vary from state to state.
If you have any questions concerning this warranty, please write Honeywell Customer Relations, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502. In Canada, write Retail Products ON15-02H, Honeywell Limited/ Honeywell Limitée, 35 Dynamic Drive, Toronto, Ontario M1V4Z9.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
Honeywell Limited-Honeywell Limitée
35 Dynamic Drive
Toronto, Ontario M1V 4Z9
http://yourhome.honeywell.com
Frequently Asked Questions
This unit does not have a slot for the 24volt C (Common) wire. If you have a C-wire, I’d find a different unit and take advantage of it and forget the batteries.
When the thermostat has the “Smart Response/Adaptive Intelligent Recovery” enabled, the thermostat will learn how long it takes the HVAC system to heat or cool. The thermostat will then start the programmed schedule early to reach the selected temperature setpoint by the desired time. It will take a few days for the thermostat to learn how long it will take.
You can override the schedule using the temporary or the permanent hold. A temporary hold will override the schedule until the next period of the schedule starts while a permanent hold sill overrides the schedule until you press the ‘Run’ button to resume the schedule.
The timer/temperature can be set for a 5 day work week routine (temp is lower from the time household members usually go to bed to when they usually get up). There is also a weekend scheduling option that can be adjusted if household members usually stay up later and perhaps sleep later on the weekends.
As long as you don’t place a hold on the temperature, when the set time for change occurs your settings will be obeyed by the program setting.
The Honeywell Home 5-2 Day Programmable Thermostat works with 24v baseboard heaters. -Jerry
if you use the up/down button until you see your desired temperature, the thermostat will change to a temporary hold which will hold that temperature until the next period of the schedule starts. If you use the up/down until you see your desired temperature and then press ‘Hold’ will change the thermostat to a permanent hold that will keep your set temperature until you change it again manually.
The battery life might vary based on application and usage, however, Honeywell recommends changing them at least once a year to avoid your thermostat from corrosion.
Hi, thanks for reaching out! The RTH2300B thermostat only measures temperature.
This model does not have a passcode.
This thermostat will work with a 3 wire system.
Yes, the Honeywell Home RTH2300B1038 can be programmed to not run the heat on the weekends or at night.
I replaced a Hunter thermostat that was 25 years old. It was heat-only, with 2 wire connection.
Yes. I replaced my mercury therm. with one. the only issue I had was the instructions do not show wiring for a 2-wire system. I called the help number on the instructions and was told how to connect it.
We recommend checking how the wires were connected before or each wire’s functionality as we don’t follow color code. Wires should match the furnace designations (R-R, Y-Y, and so on).
The only way I have been able to turn off those irritating time sets is to remove the batteries and reinstall them.
I cannot get this one to run at all because my a/c requires an extra wire terminal. So I don’t know what it dose. Make sure you have the right thermostat type first.
I think so. It comes with directions for how to match up the wires.
https://thermostat.guide/honeywell/honeywell-home-rth2300b-programmable-thermostat-user-guide/
