Roper Washer Error Code 240: Motor Control Module... | appliancefaults.com

Technical Background:

The Motor Control Module (MCU) controls the motor's speed and direction. It receives signals from the main control board and regulates the voltage supplied to the motor windings. error code 240 indicates the MCU has detected a fault, likely related to a failure to properly control motor function. The MCU uses feedback from the motor to confirm speed and direction.

Symptoms:

The homeowner reports that the Roper washer won't start, displays error code 240 on the control panel, or the motor hums but doesn't turn. The washer may fill with water but not agitate or spin.

Possible Causes:

Failed motor control module (MCU)
Wiring harness damage between the MCU and motor
Faulty motor stator or rotor
Overload condition causing MCU protection shutdown
Loose or corroded connections
Power supply issues to the MCU (low voltage)

Solution:

1

Disconnect power to the washer at the breaker panel.
2

Locate the motor control module (MCU), typically behind the control panel or near the motor.
3

Inspect the wiring harness connecting the MCU to the motor for any visible damage, cuts, or loose connections. Repair or replace as needed.
4

Using a multimeter, check the voltage supply to the MCU. You should find 120V AC at the designated input terminals.
5

Check motor windings for shorts. Use a multimeter and set it to ohms. A shorted winding will measure close to zero ohms.
6

If wiring and voltage are good, replace the motor control module (MCU) with a new, OEM replacement part.
7

Reconnect power and test the washer operation.

Safety Warning:

Disconnect power to the washer at the breaker panel before attempting any repairs. Lock Out/Tag Out (LOTO) procedures should be followed. High voltage is present in the washer's electrical components.

Prevention:

Avoid overloading the washer. Regularly inspect the wiring harness for wear and tear. Ensure the washer is connected to a dedicated 15-amp circuit.

Expert Tip:

Some Roper washers have a service mode. Check the tech sheet behind the front panel. It may have a motor test sequence that can help isolate the problem to the MCU or the motor.

Follow-up Questions:

Frequently Asked Questions

•How do I access the motor control module on this Roper washer model?

Typically, you'll need to remove the top panel or the front panel to access the MCU. Refer to the service manual for your specific model or search for model-specific repair videos online. The MCU is usually mounted to the chassis with screws.

•What type of multimeter settings should I use to test the motor windings?

Set your multimeter to the Ohms (Ω) setting, usually the lowest range. Disconnect the motor wires before testing. You should measure the resistance between each winding terminal. Extremely low resistance (close to zero) indicates a shorted winding, while very high resistance (OL or infinite) indicates an open winding.

•Can I use a used motor control module to save money?

While using a used MCU might save money initially, it's generally not recommended. Used parts have an unknown history and could fail prematurely. A new OEM part ensures proper operation and a longer lifespan.

Roper Washer Error Code 240: Motor Control Module Failure Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the motor control module on this Roper washer model?

•What type of multimeter settings should I use to test the motor windings?

•Can I use a used motor control module to save money?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: