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35
SYMPTOM
Heat, Cool or Fan Runs
Constantly
CORRECTIVE ACTION
Check each wire connection to verify they are not
shorted or touching together. No bare wire should
stick out from under terminal screws.
Try resetting the thermostat as described on page 31.
If the FAN button is pressed to display ON, the
blower fan will cycle continuously whether the
heating or cooling system is running, press the FAN
button until AUTO is displayed. If the condition
persists, the manufacturer of your system or service
person can instruct you on how to test the Heat/Cool
system for correct operation. If the system operates
correctly, replace the thermostat.
POSSIBLE CAUSE
1. Possible short in wiring.
2. Possible short in thermostat.
3. Possible short in heat/cool/fan
system.
4. Fan Switch is set to Fan On.
Troubleshooting