Maytag Dishwasher Error Code Motor high current

The Motor High Current error means the dishwasher's control board detected the wash motor drawing more electrical current than its normal operating range. The correct motor resistance should measure 3-4 ohms between terminals ST5 and ST8. Causes include a failing motor, a mechanical obstruction in the pump, or a wiring fault in the motor circuit. The error is visually indicated by the Delay LED and Normal Wash LED flashing at the same time.

Continuing to run the dishwasher with this error is not recommended. A motor drawing excessive current generates excess heat, which can damage the motor windings, the control board, or the wiring harness over time. The control board will attempt one 30-second auto restart if the fault occurs mid-cycle, but repeated cycling under high current conditions accelerates wear. Stop using the dishwasher and diagnose the cause before running additional cycles.

The control board is programmed to attempt a single 30-second automatic restart when it detects high motor current during a consumer wash cycle. This is a built-in recovery feature designed to handle intermittent faults, such as a momentary obstruction that clears on its own. If the motor current returns to normal after the restart, the cycle continues. If high current is detected again after the restart attempt, the control locks out and the error is displayed, indicating a persistent problem that requires hands-on inspection.

Start by checking for physical obstructions in the pump and wash motor area, since debris blocking the impeller is a common cause. Next, test motor resistance between terminals ST5 and ST8 with a multimeter; a reading outside 3-4 ohms indicates the motor needs replacement. Also inspect the wiring harness at both terminals for damage or corrosion. If the motor resistance is in spec and no blockage is found but the error returns, professional diagnosis of the control board and motor circuit is a reasonable next step.

If the fix is clearing a pump obstruction, the repair is essentially free if you do it yourself. A replacement wash motor for a Maytag dishwasher typically costs between $80 and $180 for the part alone, with professional labor adding $100 to $200 depending on your area. A wiring harness repair or replacement is generally less expensive than a full motor swap. Getting a resistance reading at ST5 and ST8 first is the most cost-effective diagnostic step before purchasing any parts.