SYMPTOM | POSSIBLE CAUSE | CORRECTIVE ACTION | |
|
|
|
|
Heat, Cool or Fan Runs | 1. | Possible short in wiring. | Check each wire connection to verify they are not |
Constantly |
|
| shorted or touching together. No bare wire should |
|
|
| stick out from under terminal screws. |
| 2. | Possible short in thermostat. | Try resetting the thermostat as described on page 31. |
| 3. | Possible short in heat/cool/fan |
|
system.
4.Fan Switch is set to Fan On. 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.
35
Troubleshooting
