PRO 2000 Operating Manual
PRO 2000
 19 69-2608EFS—03
ENGLISH
Temperature  
settings do not 
change
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat:40°to90°F(4.5°to32°C).
• Cool:50°to99°F(10°to37°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 (see page 14).
“Heat On” is not 
displayed
•  Set the System switch to Heat, and set the temperature level above the 
current room temperature (see page 7).
“Cool On” is not 
displayed
•  Set the System switch to Cool, and set the temperature level below the 
current room temperature (see page 7).
In case of difficulty










