I've had occasional problems with my power awning and traced it to low voltage going to the motor.
My power awning was an after market add on and they tapped into a wall light for power. I now turn off all lights, etc if I'm having problems with it moving slowly or not at all.
I also lubricate all the moving points with silicon spray every year or so.
2004 Monaco La Palma 36DBD, W22, 8.1, 7.1 MPG
2000 LEXUS RX300 FWD 22MPG 4020 LBS
It's so weird being the same age as old people.