The timer motor regulates the length of time power is routed to each component. If the timer motor does not function properly, it can result in a wide range of problems. Common symptoms include sticking in a cycle, cycle times running too long, or failure of the dishwasher to start at all.
Before testing the timer motor, unplug the dishwasher or shut off the power at the fuse box or breaker panel to avoid an electrical shock hazard.
To service the timer motor, it is necessary to access the control panel in the door. Access varies by model; on some models you can remove just the control panel on others you must remove the interior or exterior panel of the door.