What Are the Error Codes for a Maytag Neptune Washer? Error codes for the Neptune front loading washing machine include the codes DO, FL, LO, LR, ND, OD, SD, DF and NF. The LR code indicates a failure in the motor, while the NF code indicates the washer isn’t filling with water.Click to see full answer. Correspondingly, what does Fl mean on Maytag Neptune?The “FL” is indicating that the door has failed to lock or it locked but the control does not sense the door has locked. It could be caused by: faulty door lock solenoid.Similarly, how do I troubleshoot my Maytag Neptune washer? Maytag Neptune Frontload Washer Troubleshooting Close the door firmly if the washer isn’t filling. Check the plug to be sure the washer is plugged in. Turn the control knob to select a cycle, and press “Start/Stop.” Open the hot and cold faucets completely. Turn the water off and remove the hoses from the washer. Check the plug to be sure the washer is plugged in. Likewise, people ask, how do I reset my Maytag Neptune washer? How to Reset the Sequence for a Maytag MAH5500BWW Locate the “Off” button, located to the right of the Neptune’s “Start/Pause” button. Press the “Off” button within the first 30-seconds of beginning the cycle to cancel the current cycle. Allow the washing machine to drain if you press the “Off” button while there is water in the tub. What does Fl mean on my washing machine?FL. The washer failed to lock the door.