HWH jack solenoids rarely short out. To have 2 that have a short is way out there. The usual reason a HWH solenoid would have a short is, they are momentary solenoids, not supposed to have 12 volt power longer than 10 to 15 minutes max. What usually causes LONGER than 10 minute activation times is when either a jack fails to fully retract and the light stays ON and the system stays in STORE mode as long as the Ignition key is on, or the jack down light system has a fault and the jacks are retracted but the system stays in full store mode when the Ignition key is on. Doug