Troubleshooting; Need Help - Honeywell PRO3000 Series User Manual

Troubleshooting

Temperature
settings do
not change
"Cool on" or
"Heat on" is
flashing
"Heat on" is
not displayed
"Cool on" is
not displayed

Need Help?

For assistance with this product, please
visit yourhome.honeywell.com.
Or call Honeywell Customer Care toll-
free at 1-800-468-1502.
CAUTIoN
equipment damage hazard
To prevent possible compressor damage, do not operate cooling
system when outdoor temperature is below 50°F (10°C).
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).
• Compressor protection feature is engaged. Wait 5
minutes for the system to restart safely, without damage
to the compressor (see page 4).
• Set the System switch to Heat, and set the temperature
level above the current room temperature (see page 3).
• Set the System switch to Cool, and set the temperature
level below the current room temperature (see page 3).
Pull at bottom
to remove
thermostat
from
wallplate.
Turn thermostat
over to find model
number and date
code.
4