Brake Resistor - GE WPGT9350 Technical Service Manual

• The inverter receives 120 VAC through the
RD2 connector (RF Choke). If 120 VAC is not
present, check wall outlet, power cord, and
RF Choke.
• The RF Choke filters the line voltage and
contains an in-line fuse. 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
CON2. (See
Testing the Inverter
• 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 below listed voltages are
on CON2:
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 CON2 will be 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 CON2
are not present, the inverter is bad.
Protective Cover
The protective cover must be removed to access
the following components: water valve assembly,
pressure switch, brake resistor, RF choke, and
fuse. The protective cover is held in place by 3
Phillips head screws.

Brake Resistor

• The brake resistor absorbs energy from the
reversing of the motor during the brake cycle.
• The brake resistor only operates when the
photo.)
washer is unplugged or the lid is lifted during
a cycle.
• Under normal operation, the tub coasts to a
stop at the end of a cycle.
• The approximate resistance value of the
brake resistor is 70 Ω.
• If the resistor is shorted, the motor will not
start.
• If the resistor opens while the motor is
spinning, the inverter board can be damaged.
• Look for a burnt IC labeled IC300 on the
inverter board. Both the resistor and inverter
board should be replaced if the IC300 is
damaged. (See
To remove the brake resistor:
1. Remove the 2 Phillips head screws that hold
the brake resistor in place.
2. Disconnect the wiring to the brake resistor.
– 25 –
Testing the Inverter
Brake Resistor
Disconnect
photo.)