Brake Resistor - GE Profile WPGT9150 Technical Service Manual

High-efficiency washer
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When the washer is turned on by pressing a
membrane pad, 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:
CON2
1
2
3
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 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 if one of the three
voltages (5 VDC, 12 VDC, or 20 VDC) at CON2 is
not present, the inverter is bad.
4
5
6
7

Brake Resistor

The brake resistor absorbs energy from the
reversing of the motor during the brake cycle.
The brake resistor only operates when the
washer loses power 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
Testing the Inverter
To remove the brake resistor:
1.
Remove the 2 Phillips-head screws that hold the
brake resistor in place.
2.
Disconnect the 2 wiring harnesses from the
brake resistor. Remove the brake resistor from
the mounting pin.
Mounting Pin
Disconnect
– 17 –
photo.)
Brake Resistor
Disconnect
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