Honeywell 69-1776EFS-01 Operating Manual page 13

In case of difficulty
Temperature Make sure heating and cooling temperatures are set to acceptable ranges:
settings do not
change
"Cool On" or
"Heat On" is
flashing
"Heat On" is not
displayed
"Cool On" is not
displayed
• Heat: 40° to 90°F (4.5° to 32°C).
• Cool: 50° to 99°F (10° to 37°C).
• Compressor protection feature is engaged. Wait 5 minutes for the system
to restart safely, without damage to the compressor (see page 8).
• Set the System switch to Heat, and set the temperature level above the
current room temperature (see page 7).
• Set the System switch to Cool, and set the temperature level below the
current room temperature (see page 7).
11
PRO TH3110D / TH3210D
69-1776EFS—01