Roper Washer Error Code F1E2: Motor Control Board... | appliancefaults.com

Technical Background:

The F1E2 error code on a Roper washer indicates a fault within the motor control board (MCU) circuit. The MCU is responsible for regulating the motor's speed and direction. It receives signals from the main control board and uses these signals to control the voltage applied to the motor windings. A fault in the MCU can be caused by component failure, wiring issues, or a software glitch. The MCU typically operates on 120V AC power and controls the motor using pulse width modulation (PWM) to vary the motor speed.

Symptoms:

The Roper washer displays error code F1E2 on the control panel and may not start a wash cycle or may stop mid-cycle. The washer may also exhibit unusual motor behavior or no motor activity at all.

Possible Causes:

Defective motor control board (MCU)
Wiring harness issue between MCU and motor
Motor windings shorted or open
Loose connection at the MCU
Power supply fluctuation
Software Glitch on the main control board

Solution:

1

Disconnect power to the washer at the breaker panel.
2

Locate the motor control board (MCU), usually behind the control panel or at the bottom of the washer.
3

Inspect the wiring harness and connectors between the MCU and the motor for any damage or loose connections.
4

Using a multimeter, check the voltage supply to the MCU. You should see approximately 120V AC on the appropriate terminals.
5

Check the motor windings for shorts to ground. A healthy motor winding should have a resistance reading between 3-8 ohms depending on the motor size. Use a multimeter to check for continuity between each winding terminal and the motor chassis. There should be no continuity (infinite resistance).
6

If wiring and motor checks out, replace the motor control board (MCU).
7

After replacing the MCU, plug the washer back in and run a test cycle to verify the repair.

Safety Warning:

Always disconnect the power supply to the washer at the breaker panel before performing any repairs. Use Lock-Out/Tag-Out (LOTO) procedures to prevent accidental energizing of the circuit. The motor control board contains high-voltage components that can cause serious injury or death.

Prevention:

Regularly inspect the wiring harness for any signs of damage or wear. Ensure the washer is plugged into a dedicated 15-amp circuit to prevent power fluctuations. Periodically clean the lint filter and check for any obstructions in the drain hose to prevent excessive strain on the motor.

Expert Tip:

After replacing the motor control board, you may need to perform a calibration cycle. Enter service mode by pressing and holding the Start/Pause button for 3 seconds, then select the calibration cycle option. This allows the washer to learn the characteristics of the new motor control board and ensure optimal performance.

Frequently Asked Questions

•What is the resistance range of the motor windings?

The resistance range for a healthy motor winding is typically between 3-8 ohms depending on the motor size. Check for continuity between each winding terminal and the motor chassis. There should be no continuity (infinite resistance).

•How do I test the wiring harness between the MCU and the motor?

Use a multimeter to check for continuity between corresponding terminals on the MCU and the motor. Ensure that the wiring harness is not damaged or pinched. Also check for voltage drop under load.

•Where is the motor control board (MCU) located on my Roper washer?

The MCU is usually located behind the control panel or at the bottom of the washer, often near the motor itself. Consult the washer's service manual for the exact location on your specific model.

Roper Washer Error Code F1E2: Motor Control Board Circuit Fault Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the resistance range of the motor windings?

•How do I test the wiring harness between the MCU and the motor?

•Where is the motor control board (MCU) located on my Roper washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: