USC MX2500 Operator's Manual page 61

Alarm - Fault
Check Operation Of Seed
Sensors In Seed Wheel
SURGE SUPRESSOR - L1
FAILED!!!
MX2500
Possible Cause
Seed Wheel is in Auto mode of
operation, and only one proximity
sensor has been activated for the
past ten seconds.
L1 of the Surge Protector will no
longer protect the electrical panel
against voltage surges.
USC,
LLC
Solution
Verify both proximity sensors are
working properly. (This alarm will
also be activated if seed is only
flowing through one side of the
seed wheel.)
Replace the Surge Protector.
Page 61