My Maytag MDB9150AWS just started misbehaving, making a clicking noise when it should drain. I've taken it apart from above the drain to the impeller and it isn't clogged above. I've taken off the drain line and it's clear. I've run the automatic self-test and it fails indicating a problem with the "Motor - Low Current". Note: The motor does run in some instances (I can see the shaft spin from below). So, do I replace the circuit board, replace the motor, test the motor for a short or burnout, or buy a new dishwasher? And if it's test or replace, any tips are appreciated.