Dexter Laundry T-350 Parts & Service Manual page 123

Fault# Description
F16
The temperature sensor
inside of the variable
frequency drive detects that
the internal temperature is
too high.
F17
Overload of the drive or
motor
F18
Ground Fault to the drive
F19
Low Voltage to the drive
F20
Internal drive error
F21 Data error on
communications between
the controller and drive
Internal drive error # 32.
This error also has CEXX
errors associated with it that
are presented on the drive
display.
Warning codes F22 - F28: These codes indicate that a component (VFD,
relay PCB, injection relay PCB, water valve) has been replaced, added, or
removed and you will need to soft reset the PCB controller board to reset
the main controller to operate properly.
Fault# Description
F22 Future use
F23
VFD has been replaced,
disconnected, or removed.
F24
Injection relay PCB has
been removed or loose
connection.
F25
Optional water valve PCB
removed or water valve has
been replaced .
Customer Action
Step 1: Make sure the cooling fins on the VFD heatsink
and the ventilation louvers on the VFD cooling fan cover
are clean. Step 2: Start a washer cycle and make sure
the VFD cooling fan operates after the cylinder starts
turning.
(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.
Check VFD fault code before turning off power. Turn
the power off to the washer. Wait one minute. Turn the
power on to the washer. If problem reappears, contact
your Dexter representative.
The CE errors are communications errors. Data Cable
noise can cause the majority of these errors.Check VFD
fault code before turning off power. Check the data
cable between the controller and the drive. Replace
data cable if it appears damaged and fault appears
again. Please note that this fault will occur if you turned
main power off and on to quickly. (See Note below)
Customer Action
No action required
Soft reset control.
Soft reset control.
Soft reset control.
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