Hmm,
Two failures at once? Very bad luck?
Sure the battery is good?
If your Jack Motor is connected to a jackshaft and is one motor for both jacks, I suggest removing and replacing with better individual jack/motors. After my 05 Montana Gearbox failed several years ago (and was replaced with the metal upgrade), the "primary" Jack Gears failed so I completed that Jack upgrade to individual motors (no jackshaft) 2 years ago.
Regarding the slide motor, assuming its a hydraulic pump, I have no advice as my now 12 year old system is still working. I have replaced/upgraded the re-setable breaker which improved performance.
Sorry I can't be more helpful
