My drive belt broke.
The error is an indication a motor speed problem. You will need to check the following:
- Check the wiring harness. Verify all connections between the Drive
Motor, Motor Control Unit (MCU), and Central Control Unit (CCU).
NOTE: The MCU is a circuit board located in the vicinity of the Drive
Motor on the bottom rear of the washer. To access the MCU, you will need
to remove the back panel of the washer.
NOTE: The CCU is the main computer for the washer and is located behind
the wash tub. You will need to remove the top panel to access the CCU.
This is accomplished by removing the three screws in the back of the
washer that hold the top in place. Once the screws are removed, the top
panel will slide back, then lift off.
- Check the Drive Motor. Perform a continuity check of the Drive Motor
windings. Remove the connector plug and check across pins 1 to 2, 2 to
3, and 1 to 3. All readings should be approximately 6 ohms. HINT: You
can also take this reading by removing connector 2 from the MCU and
measuring across pins 1, 2 and 3. If the readings are good, this will
also prove the wiring and connector good.
- Check the MCU. The connectors are numbered 1 to 3 (L to R). That is,
with the MCU installed, connector 1 is on the bottom, followed by 2 in
the middle, and 3 on top.
Connector 1 - is the serial communications link between the MCU and CCU
and has three wires. At the opposite end, this will be the 2nd connector
from the rear on the left-hand side of the CCU.
Connector 2 - is the link between the MCU and the Drive Motor. Pins 1,
2, and 3 on this connector are the Drive Motor windings. Pins 4 and 5
are for the tachometer.
Connector 3 - is the primary power connector. Pins 1 to 2 should read
120VAC with the door in the locked position. Pin 3 is ground. At the
opposite end, this is the 4th connector from the right on the front of
the CCU.
NOTE: All the connector pins are numbered R to L.
If your continuity readings are normal for the Drive Motor and you have verified all connectors, replace the MCU.
If any of the Drive Motor windings indicate readings higher that 6 ohms, replace the Drive Motor.
(tip courtesy JSRock)
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