Maytag Washer Error Code E28

E28 on a Maytag washer indicates a THT timeout overcurrent fault from the Mitsubishi frequency inverter, which is the component that controls wash motor speed. The inverter detected a sustained overcurrent condition it could not resolve internally and shut down to protect the system. This fault can be caused by a configuration error, a failing inverter, a faulty motor, or a mechanical obstruction.

No, you should not continue operating the washer while the E28 fault is active. The frequency inverter has shut down as a protective measure, and running the machine in this condition could worsen damage to the inverter, the drive motor, or associated wiring. Discontinue use until the fault is diagnosed and resolved.

Repair costs vary depending on the root cause. If only a configuration correction is needed, a service call fee is typically the only expense, often ranging from $75 to $150. If the Mitsubishi frequency inverter requires replacement, parts and labor costs can range from $200 to $500 or more depending on parts availability and local labor rates. Motor replacement would carry a similar or higher cost range.

The first step you can take yourself is checking that the correct Machine Type is selected in the washer's Configuration Menu, since an incorrect setting can trigger this fault without any hardware failure. Beyond that configuration check, diagnosing a frequency inverter overcurrent fault involves testing motor windings, inspecting wiring harnesses, and evaluating the inverter module itself, which requires electrical testing experience and appropriate safety precautions. Most homeowners will need a qualified appliance technician to complete the repair.

A power reset may temporarily clear the fault display, but if the underlying cause is not corrected, the E28 code will return once the washer attempts to operate the motor. If the fault is due to an incorrect Machine Type setting, correcting that configuration may resolve the issue permanently. Hardware failures such as a defective inverter or motor will cause the fault to return regardless of resets.