Compass: Testing and Inspection

Electrical Compass Calibration

NOTE:
- You should do this procedure any time the electrical compass unit is replaced.
- You should do this procedure in an open area away from buildings, power lines, and other vehicles.

1. Press and hold the FAN UP button and FAN DOWN button until the display changes (about 5 seconds).






2. The zone number displayed in the temperature indicator during a zone setting mode will correspond with the last received zone number. If zone has not been received, the zone number appears as "-----" on the display.
3. Compare the displayed zone number with the zone number on the zone map. If the zone is incorrect, use the FAN UP button or FAN DOWN button to select the proper zone, then press the OFF button to lock in the selected zone.






4. Press and hold the FAN UP button and FAN DOWN button (about 20 seconds) to change the calibration mode.
5. Press the OFF button. The Calibrate icon starts blinking, and the direction display will change to "-----".
6. When the direction display changes from "-----" to an actual heading, the electrical compass unit has been calibrated.