About your new thermostat

Congratulations! Your new thermostat has been designed to give you many years of reliable service and easy-to-use climate control.

Features
  • Backlit display is easy to read.
  • Displays room temperature at all times.
  • One-touch access to setpoint temperature.
  • Built-in compressor protection.

Do you need assistance?
We are here to help.
Call 1-800-468-1502.

Quick reference to controls
Quick reference to display screen
Fan Setting


Use the Fan switch to select the fan operation:

  • On: Fan is always on.
  • Auto: Fan runs only when the heating or cooling system is on.
System setting


Use the System switch to select the system operation:

  • On: Fan is always on.
  • Auto: Fan runs only when the heating or cooling system is on.

CAUTION: EQUIPMENT DAMAGE HAZARD.
To prevent possible compressor damage, do not operate cooling system when outdoor temperature is below 50°F (10°C).

This feature helps prevent damage to the compressor in your air conditioning  or heat pump system.

Damage can occur if the compressor is re-started too soon after shutdown. This feature forces the compressor to wait 5 minutes before restarting.

During the wait time,  will flash on the screen. When the safe wait time has elapsed,  stops flashing and the compressor turns on.

Temperature adjustment

Press the ▲ or ▼ button to adjust the temperature. The setpoint temperature is displayed while you are setting the temperature and for the next 5 seconds. The display will then return to the room temperature

NOTE: Make sure the thermostat is set to the system you want to control (heat or cool).

Appendices

Battery replacement

 Set the System switch to Off before removing the batteries. 

Install two fresh AA batteries when the low-battery icon begins flashing. The icon appears when the thermostat has detected that the batteries are low.
Replace batteries once a year or before leaving home for more than a month.
The settings are stored in permanent memory and are saved 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.

In case of difficulty

If you have difficulty with your thermostat, please try the following suggestions. Most problems can be corrected quickly and easily.

Display is blankMake sure fresh AA alkaline batteries are correctly installed (see page 9).
 is flashingThe compressor protection timer is on. Wait 5 minutes for the system to restart safely without damaging the compressor (Check above)
HI appears on the screen.The ambient (measured) temperature is above 122 °F (50 °C).
LO appears on the screenThe ambient (measured) temperature is below 23 °F (-5 °C).
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,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it, or
(ii) 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 M1V 4Z9.

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
yourhome.honeywell.com

® U.S. Registered Trademark
© 2010 Honeywell International Inc.

Documents / Resources

Honeywell RTH1100 Series Non-programmable Thermostat [pdf] User Manual
Honeywell, RTH1100 Series, Non-programmable Thermostat
Honeywell RTH1100 Series Non-programmable Thermostat [pdf] User Manual
Honeywell, RTH1100 Series, Non-programmable, Thermostat

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