Table of Contents
TROUBLESHOOTING TIPS
SYMPTOM
Thermostat Dead
Thermostat will not operate with a damaged temperature sensor
SYMPTOM
Fan, Heat, Or Cool
Inoperative
"REMOTE" is displayed when system is overriding thermostat. Disconnect the cable from
SYMPTOM
Can't Adjust Temperature
SYMPTOM
Control By Remote System
Not Working
Ensure that all setup items for the thermostat and the remote system are set to the proper
SYMPTOM
Temperature Reading
Incorrect
After installation, allow the thermostat up to 30 minutes for an accurate temperature reading
SYMPTOM
Display Problem
For a 5 second period after power is reconnected, all segments of the display should light indicating
1.
Check power to the thermostat
2.
Check wiring diagrams
3.
Check thermostat temperature sensor
1.
Check for break in G, W, or Y wire
2.
Allow minimum off time to pass
3.
Check system options for correct settings
4.
Remote system is overriding thermostat
"COMM" connector to test
1.
Mode is Off (Select Heat, Cool, or Auto)
2.
Check if thermostat keys are disabled
To enable thermostat keys for test, remove jumper
1.
Check COMM connector and wiring
2.
Check thermostat address setting
3.
Check communications mode setting
4.
Check setup of the remote system
configurations for communication
1.
Allow 30 minutes for thermostat to adjust to room
temperature
2.
Adjust calibration offset
3.
Change setup option to display
1.
Disconnect power to the thermostat. Reconnect, then
observe display self-test
all thermostat functions
ACTION TO TAKE
ACTION TO TAKE
ACTION TO TAKE
ACTION TO TAKE
ACTION TO TAKE
o
o
F or
C
ACTION TO TAKE
1
5
1
5
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