RTH1100
11
69-2447EF—03
Table of contents
In case of difficulty
Display is blank
• Make sure fresh AA alkaline batteries are correctly installed (see
page 9).
is flashing
•
The compressor protection timer is on. Wait 5 minutes for the system
to restart safely without damaging the compressor (see page 7).
HI appears on
the screen.
• The ambient (measured) temperature is above 122 °F (50 °C).
LO appears on
the screen
• The ambient (measured) temperature is below 23 °F (-5 °C).
If you have difficulty with your thermostat, please try the following suggestions. Most
problems can be corrected quickly and easily.