CareFree Awning Stop Working .... Update & fixed

Where to look first ?????? Awning is the 21 footer, windsmart auto-retract (awning will retract if too much wind) multi-switch (there's an operating switch inside the coach and one on the bottom arm of the awning).I pushed the switch to push out the awning, it moved out about 4 inches and then stopped. Now the awning won't move in or out. The on/off switch is lit as if there's is power going to the switch. I have the operators manual in front of me and there isn't a trouble shooting section. There is a "jump start" suggestion on page 16 puting 12 volts right to the motor pigtail but don't want to go there yet in that it's rainng outside!!
Any suggestions folks?? Thanks ......
Stoped raining, got out the ladder, climbed up and found the Awning electrical connector, turned it to disconnect, looked inside and found a slight bit of corrosion in and around the ground pin. Cleaned it out and sprayed a little WD-40, re-connected, pushed the extend toggle switch and the awning moved!!! Thanks all for your help!!