Maytag Washer Error Code E302

E302 indicates a Mitsubishi inverter overcurrent alarm (OC3), meaning the inverter drive that controls wash motor speed has detected excessive current on its output. The machine shuts down automatically to protect the inverter electronics and motor. This fault points to a short circuit, motor fault, or inverter board failure that must be diagnosed before the washer can run safely.

No. The E302 code represents an active electrical fault involving excess current in the motor drive circuit. Continuing to run the washer risks damaging the inverter board, motor windings, or associated wiring, and could create a fire or shock hazard. The machine should remain unpowered until the root cause is identified and corrected.

Repair costs vary depending on the failed component. A wiring harness repair or connector service is typically the least expensive route, often falling in the range of $75 to $200 including labor. A replacement wash motor can range from $150 to $400 with installation. An inverter board replacement is generally the most costly single component repair, with parts and labor typically ranging from $200 to $500 or more depending on the specific model and service rates in your area.

Some aspects of diagnosis are accessible to a knowledgeable DIYer, such as inspecting the wiring harness for visible damage, checking connector terminals, and testing motor winding resistance with a multimeter. However, if the fault traces back to the inverter board or motor internals, those components require replacement and some comfort with appliance disassembly. Working around inverter drive electronics involves capacitors that can hold charge after power is removed, so proper precautions are important.

A power reset may temporarily clear the displayed code, but it will not resolve the underlying fault. If a short circuit, motor problem, or inverter failure is present, the OC3 alarm will return as soon as the inverter attempts to drive the motor again. A reset is only appropriate after the physical cause has been found and repaired.