Onan Genset slide out motor won't stop

[davidgs]

I have a 1997 Gulf Stream with a 7.5 Genset. When I depress the slide out switch, the motor extends the generator but when the slide out stops, the motor will not. It begins a chatter or a knocking sound. When I depress the slide out switch again, the motor stops. When I depress it again the motor starts and retracts the slide out. It does the same chatter when completely retracted. Again the motor will stop when the switch is depressed.
Took it to the Onan dealer and was advised that they only work on the Genset. Contacted Gulf Stream and was advised that it was probably the motor and should take it to a Gulf stream Dealer.
I am hoping that someone else has experienced this and can shed some light on this problem. Thanks