Roper Washer Error Code 130: Rotor Position Sensor Fault... | appliancefaults.com

Technical Background:

error code 130 indicates a fault with the rotor position sensor circuit. The MCU uses the sensor to determine the rotor's position for proper motor control. The sensor sends a voltage signal back to the MCU, which the MCU interprets to control motor speed and direction. If the MCU does not receive the correct signal, or no signal, it throws the 130 error.

Symptoms:

The Roper washer displays error code 130. The washer may not start, may stop mid-cycle, or may exhibit erratic motor behavior. You might hear clicking or humming noises coming from the motor area.

Possible Causes:

Faulty rotor position sensor
Wiring harness issue between the sensor and the control board
Loose connection at the motor control unit (MCU)
Damaged motor windings affecting sensor readings
Defective MCU

Solution:

1

Disconnect power to the washer at the breaker panel.
2

Access the motor and rotor position sensor. Usually located at the bottom rear of the washer. You might need a 1/4-inch nut driver to remove access panels.
3

Inspect the wiring harness and connectors leading to the rotor position sensor for any damage, corrosion, or loose connections. Use a multimeter to check for continuity on each wire.
4

Check the rotor position sensor resistance. Consult the service manual for the correct resistance value. Typically, it should be within a range of 500-2000 ohms. Use a multimeter set to ohms.
5

If the sensor's resistance is outside the specified range, replace the rotor position sensor.
6

If the wiring and sensor are good, the MCU may be faulty. Inspect the MCU for any burnt components. Replace the MCU if necessary.
7

Reconnect power to the washer and test the operation.

Safety Warning:

Disconnect power to the washer at the breaker panel before performing any repairs. High voltage is present when the washer is plugged in. Follow Lock-Out/Tag-Out (LOTO) procedures to prevent accidental power restoration.

Prevention:

Periodically inspect the wiring harness for any signs of wear or damage. Ensure the washer is not overloaded, as this can strain the motor and sensor. Keep the area around the washer clean and free of debris.

Expert Tip:

Some Roper washers have a diagnostic mode. Entering the diagnostic mode allows you to run specific tests on the motor and sensor. Consult the service manual for the specific sequence of button presses to enter diagnostic mode. This often involves pressing buttons in a specific sequence while powering on the machine.

Frequently Asked Questions

•What is the correct resistance range for the rotor position sensor on my specific Roper washer model?

The resistance range varies depending on the specific Roper washer model. Consult the service manual or technical data sheet for your model. You can typically find these online with the model number.

•How do I access the motor control unit (MCU) on my Roper washer?

The MCU location also varies. It's often located behind the control panel or within the base of the washer. You will likely need to remove the top panel and possibly the front panel to access it. Disconnect the power first!

•If the rotor position sensor checks out okay, what else could cause error code 130 besides a bad MCU?

While a good sensor reading suggests a healthy sensor, intermittent wiring problems or a partial short in the motor windings *could* also trigger the error intermittently. Thoroughly inspect the wiring while gently tugging on the wires to check for breaks inside the insulation. A motor winding insulation test using a megohmmeter could also be performed if you have access to one and are familiar with its safe operation.

Roper Washer Error Code 130: Rotor Position Sensor Fault Repair Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the correct resistance range for the rotor position sensor on my specific Roper washer model?

•How do I access the motor control unit (MCU) on my Roper washer?

•If the rotor position sensor checks out okay, what else could cause error code 130 besides a bad MCU?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: