Frigidaire Washer Error Code E58: Motor Phase Current... | appliancefaults.com

Technical Background:

The MCU monitors the current drawn by the motor during operation. Error E58 indicates the sensed current in one or more motor phases exceeds the programmed limit. The MCU sends a PWM (Pulse Width Modulation) signal to the motor windings to control speed and torque. High current can damage the MCU and motor.

Symptoms:

The homeowner reports the washer stops mid-cycle and displays error code E58. The washer may also make unusual noises or fail to spin.

Possible Causes:

Motor overload due to excessive laundry load.
Shorted or damaged motor windings.
Faulty motor control unit (MCU).
Wiring harness issue between the MCU and motor.
Foreign object obstructing the motor or pump.
Defective drain pump causing excessive motor strain.

Solution:

1

Unplug the washer from the 120V AC power outlet.
2

Access the motor and MCU by removing the washer's rear panel, typically using a 1/4-inch nut driver.
3

Disconnect the wiring harness from the motor and the MCU. Visually inspect for burnt or loose connections.
4

Using a multimeter set to ohms, check the motor windings for shorts to ground (between any winding terminal and the motor casing) and for continuity between windings. Expect a low resistance value (e.g., 2-5 ohms) between windings and infinite resistance to ground.
5

If the motor windings check out okay, suspect the MCU. Replace the MCU with a new or known good unit.
6

Reconnect all wiring, reassemble the washer, and plug it back into the 120V AC outlet.
7

Run a diagnostic cycle, usually accessible through a specific button sequence (refer to the service manual), to verify the E58 code is resolved and the washer operates correctly.

Safety Warning:

Disconnect the power before servicing. Lockout/Tagout (LOTO) the breaker panel to prevent accidental energizing. High voltage components are present inside the appliance.

Prevention:

• Avoid overloading the washer. Refer to the owner's manual for recommended load sizes.
• Regularly inspect and clean the drain pump filter to prevent obstructions.
• Periodically check the wiring harness for signs of wear or damage.

Expert Tip:

Some Frigidaire washers have a service mode that allows you to manually spin the motor at different speeds. Entering service mode typically involves pressing and holding specific buttons simultaneously for a few seconds. Refer to the service manual for the exact button sequence for your model. This can help pinpoint if the motor issue is speed dependent.

Frequently Asked Questions

•What are the typical resistance values I should expect when testing the motor windings?

Typically, you'll see a low resistance, around 2-5 ohms, between each motor winding. However, this can vary by motor type. Check the tech sheet or service manual for the specific resistance range for your motor. A reading of zero ohms or very close to zero indicates a shorted winding. Infinite resistance indicates an open winding.

•Where can I find the service manual for my Frigidaire washer model?

You can often find service manuals online by searching for your model number followed by 'service manual' or 'technical sheet'. Websites like AppliancePartsPros or RepairClinic often have them available for download. You can also try contacting Frigidaire directly.

•How do I access and clean the drain pump filter on my Frigidaire washer?

The drain pump filter is usually located behind a small access panel at the bottom front of the washer. Open the panel, and you'll typically find a twist-out cap or filter assembly. Before removing it, place a shallow pan to catch any water that may drain out. Clean the filter thoroughly to remove any lint, debris, or foreign objects, and then reassemble.

Frigidaire Washer Error Code E58: Motor Phase Current Too High Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What are the typical resistance values I should expect when testing the motor windings?

•Where can I find the service manual for my Frigidaire washer model?

•How do I access and clean the drain pump filter on my Frigidaire washer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: