2008 Winnebago Sightseer 35J w/ Kwikee Level Best 3000 system, 4 years of full time use and now I have problem retracting jacks! When I tried to raise the jacks, the pump ran for half a second and then stopped! the RV did drop just a little. I replaced the battery and the soleniod. Control panel closes the solenoid when pushing and of the bi-level switches sending 12.9 volts to the motor, and the motor has a good ground. The Control panel beeps 9 times with an all up steady red light, this makes me think the parking brake is not on, but it is! ANY IDEAS?