Instructions / Assembly
12
Troubleshooting
If you have difficulty with your thermostat, please try the following
suggestions. Most problems can be corrected quickly and easily.
Display is
blank
• Make sure fresh AAA alkaline batteries are correctly
installed.
Heating
or cooling
system does
not respond
• Set system switch to Heat. Make sure the temperature is
set higher than the Inside temperature.
• Set system switch to Cool. Make sure the temperature is
set lower than the Inside temperature.
• Wait 5 minutes for the system to respond.
Cannot
change
setpoint
Verify the system switch is set to Heat or Cool mode. The
thermostat should allow you to change the setpoint within
the following ranges:
• Heat: 40 °F to 90 °F (4.5 °C to 32 °C).
• Cool: 50 °F to 99 °F (10 °C 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.
For assistance with this product, please visit resideo.com.
Electrical Ratings
Terminals Voltage
(50 Hz/60 Hz)
Running Current
W Heating 20 VAC30 VAC 1.0 A
W Power Pile Heating 750 mV DC 100 mA DC
Y Compressor 20 VAC30 VAC 1.0 A
O Changeover, Cooling 20 VAC30 VAC 0.5 A
B Changeover, Heating 20 VAC30 VAC 0.5 A
G Fan 20 VAC30 VAC 0.5 A