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Inverter
The inverter receives commands from the control
board and controls motor operation. The inverter is
enclosed in a protective housing and is located on
the chassis, under the left side of the outer tub. It is
inserted in 2 guides at the rear and held in place by
a single Phillips-head screw at the front.
For the inverter to operate the motor correctly
requires a supply voltage of 120 VAC, DC input from
the control board, and the three motor windings
intact.
To check the inverter:
Remove the service panel. (See
1.
Service Panel.)
Press the 4 tabs inward and remove the junction
2.
box cover.
Enter test mode t04, t13, or t14.
3.
Check for 120 VAC between the blue and red
4.
wires at the AC input harness.
Note: The 120 VAC inverter supply voltage is present
only when the motor is supposed to be operating.
Unplug washer, then check motor resistance.
5.
(See
Motor Assembly
.)
If 120 VAC is present at the AC input harness and
6.
motor resistance is correct, replace the inverter.
Note: If the inverter overheats, the washer will stop
for 5 minutes.
Disconnect the motor wire harness.
4.
Note
The motor wire harness is soldered to the
•
inverter. Any fault in the inverter or motor wire
harness requires inverter replacement.
The motor ground wire connector utilizes a
•
releasing locking tab.
To remove the inverter:
Remove the service panel. (See
1.
Service Panel
.)
Press the 4 tabs inward and remove the junction
2.
box cover.
Disconnect the AC and DC input wire harnesses
3.
contained in the junction box.
Junction Box Cover
Tab (1 of 4)
AC Input
DC Input
Junction Box
ELECTRICAL TERMINAL
RELEASE/LOCKING TAB
(Continued Next Page)
