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CON 2
Power LED
IC300
120 VAC Input From Heating Element Control Board
RF Choke
120 VAC to Heating
Element Control Board
120 VAC Input
Heating Element Control Board
Inverter Board
Ground
Pins Voltages
1 and 2 5 VDC
1 and 3 12 VDC
1 and 4 20 VDC
• After 5 minutes, if there is no additional
screen input, the washer shuts off and the
power LED shuts off. There is no voltage
on pins 1 and 3 and 1 and 4 at this time.
• If the washer operates through a cycle,
the inverter voltages at CON 2 are present
until the lid is opened.
• If the Power LED is lit and any of the three
voltages (5 VDC, 12 VDC, 20 VDC) at CON
2 are not present, the inverter should be
replaced.
Testing the Inverter
The inverter receives 120 VAC from the
heating element control board.
• The heating element control board
receives 120 VAC through the RF Choke.
• If 120 VAC is not present at the inverter,
check wall outlet, power cord, heating
element control board, and RF Choke.
• The RF Choke fi lters the line voltage. It is
replaced as an assembly
• Whenever the washer is plugged in, there
is 5 VDC at pins 1 and 2 on the dark blue
7-pin CON 2. (See
Inverter Board photo.)
• When the washer is turned on by pressing
a membrane pad or touching the LCD
screen, the Power LED on the inverter
comes on.
• When the Power LED is on, the 12-VDC
power supply on the inverter board is
energized and the voltages listed below
listed are on CON 2:
•
CON 2
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