User guide

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 sen sor 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 groun d 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 