Dolphin Motor Repair (recommended read)
by Randy Bradley
Often times the failure of the motor is related to the small circuit board that is inside the motor assembly. I found an on-line repair facility, Circuit Board Medics located in Greenville SC who was able to test and repair the motor circuit board for $150. That saved me from buying a $400 motor for my unit.
ADMIN REPLY: Excellent advice! Thank you for taking time to share.