UAV-1004234-001, AV-30-E Installation Manual 128
Rev H
14 Troubleshooting
The following steps are to aid in identifying installation or unit
performance related issues:
Table 14-1 – Troubleshooting
Check associated breakers.
Ensure aircraft battery is greater than 10 VDC.
Check wiring and pinouts.
Unit will not shut off, even if power is
removed.
Ensure no pitot or static blockage or line kinks are
present (locking pressure and airspeed indication over
40 knots)
Pitot and Static sensors need to be zeroed as
described in Section 13.2.8
Unit will not stabilize and aligning
annunciator remains on.
Return to factory for service if unit does not align
within 3 minutes of power-on.
DG drifts more than 30 degrees per
hour.
Ensure running latest available software; perform
Vibration Check as described in Section 13.2.7
Perform Gyro Calibration as described in Section
13.2.2
Enable magnetometer aiding, if internal or AV-Mag
external magnetometer is available see Section
13.1.9
Check that you have selected the intended internal or
AV-Mag external magnetometer function.
Check AV-Mag wiring for intermittent connection or
poor grounding.
side
Complete the Mag Calibration flight in Section 13.2.3 if
using the internal magnetometer.
Complete the on-ground 12-point calibration in Section
13.2.4 if using the external magnetometer.
Battery indicator shows FAIL.
Contact uAvionix support.
Roll, Pitch or Slip show small but
constant error.
Ensure unit is level in panel (using a bubble level or
similar)
Set trim adjustment in Installation menu. See
Installation Manual for instructions..
Airspeed or Altitude shows small but
constant error.
Set trim adjustment in Installation menu. See
Installation Manual for instructions13.2.8
and section 13.2.9
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