Congratulations on your purchase of the Itasca. We are glad to have you join us here and we look forward to reading of your adventures and experiences. I am sure you will enjoy the website and forums. Good luck, stay safe and keep us posted.
You may luck up and find that the resistor pack that controls the voltage to the motor is the problem. There should be access from the fire wall of the coach either on the outside or inside, to a small removable plate that has several wires plugged onto spade connectors that the motor itself is connected to. The motor is a single speed wound motor but the resistor pack reduces the operating voltage to the motor and it rpm is reduced as a result. The resistor packs are known for burning out over time. You can also apply 12 vdc to the motor directly at this point for testing of the motor.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7