Dexter Laundry T-350 Parts & Service Manual page 126

Variable Frequency Drive Control
Digital Readout Faults
Fault# Description
OL or Overload of the drive or
OU
motor
GF Ground Fault to the drive
LU
Low Voltage to the drive
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Part # 8533-104-001 1/18
Customer Action
(Check drive fault code before powering down). Check
the washer motor to ensure it turns freely. Check
the wiring for loose connections to the drive and
motor. Measure the braking resistor values. Check for
damaged motor wires. Check V-Belt tension and adjust
to 1" deflection at center. Check braking resistors.
Check VFD fault code before turning off power. Check
the wiring connections to the drive and motor. Check
the ground wiring of the drive, motor and incoming
connection to ensure a proper ground is present. Check
for damaged motor wires.
Check VFD fault code before turning off power.
Turn the power off to the washer. Check the wiring
connections to the drive and motor. If no problem is
observed, turn on power to the washer and test. (See
Note) Measure the incoming line voltage.