Honeywell RTH 3100C - Manual (Page 20)

Advanced Installation Guide
69-2340ES—01 18
Troubleshooting
SETUP
WIRING
ASSIST
ANCE
TROUBLESHOOTING
Temperature
settings do not
change Make sure heating and cooling
temperatures are set to acceptable
ranges:
• Heat: 40° to 90°F (4.5° to 32°C).
• Cool: 50° to 99°F (10° to 37°C).
“Cool On” or
“Heat On” is
flashing • Compressor protection feature is
engaged. Wait 5 minutes for the
system to restart safely, without
damage to the compressor.
“Heat On” is
not displayed • Set the System switch to Heat, and
set the temperature level above the
current room temperature.
“Cool On” is
not displayed • Set the System switch to Cool, and
set the temperature level below the
current room temperature.