37
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:
1. Remove the service panel. (See 1. Service Panel.)
2. Press the 4 tabs inward and remove the junction box cover.
3. Enter test mode t04, t13, or t14.
4. Check for 120 VAC between the blue and red wires at the AC input harness.
Note: The 120 VAC inverter supply voltage is present only when the motor is supposed
to be operating.
CONFIDENTIAL AND PROPRIETARY INFORMATION-NOT FOR PUBLIC DISCLOSURE. September 2008
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