TROUBLESHOOTING
RESETTING THERMOSTAT
The thermostat can be reset back to factory default programs and configuration options. Removing power from the thermostat will not reset it to the default settings. Before resetting the thermostat you may want to make note of the previously selected configura- tion options and programming.
To reset the thermostat, press and release PROGRAM RUN , then press the FAN , TIME BACK and 
buttons at the same time. This will reset the thermostat to factory default programs and configuration. The display will momentarily go blank, and then all segments on the display will momentarily be shown. The thermostat will then go into the AUTO HOLD mode and will maintain a factory preset temperatures of 62°F in Heat or 85°F in Cool. To clear the HOLD TEMPERA- TURE overide press the PROGRAM RUN button.
SYMPTOM |
| POSSIBLE CAUSE | CORRECTIVE ACTION |
| |||
No Heat/No Cool/No Fan |
| 1. Blown fuse or tripped circuit | Replace fuse or reset breaker. |
(common problems) |
| breaker. |
|
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| 2. Furnace power switch to OFF. | Turn switch to ON. |
|
| 3. Furnace blower compartment | Replace door panel in proper position to engage |
|
| door or panel loose or not properly | safety interlock or door switch. |
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| installed. |
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| 33 |
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Troubleshooting
