Seed Hawk 30 SERIES: 600C & 800C 2013 - Manual (Page 80)

SEED HAWK® 30 SERIES OPERATOR’S MANUAL 80
4.24.10 TROUBLESHOOTING
1. MUX Sensor is not recognized at power up. This will include the ground speed, fan, and bin
level sensors
Possible causes: Harness wiring is faulty or the sensor is
defective.
Solution: With the system turned on, go the sensor that is
not communicating. There is a LED on each sensor (except
the multilevel bin sensor). If it is flashing slowly (1 flash every
2‐3 seconds) that indicates that power and ground are
connected but the sensor wire is not. The power wire is +12
volts and is the white wire. It is in the “A” position on the
connector. The Ground wire is black and is in the “B” position
on the connector. The sensor wire is the green wire and is in
the “C” position on the connector. If the LED is not flashing,
unplug the sensor from the harness and plug it back in. If the
LED lights momentarily, power is present and the sensor is
faulty. If the LED does not light at all check power at the
connector. The user should measure 12 volts between the
white and black wire. If so, the sensor is faulty, if not, the
harness is faulty. All the white wires on the MUX harness are
connected in parallel, all the black wires are in parallel, and
all the green wires are in parallel. You can measure continuity
be‐ tween any of the “A”, “B”, or “C” connections on the
MUX harness.
+12V WHITE – A
BLACK – B
GREEN – C
FIGURE 4.103
FIGURE 4.102
FIGURE 4.104
FIGURE 4.103