In regards to the Lippert Components High-Speed Power Stabilizer Jack like part # LC298707, the first thing I would do is check voltage on your battery to make sure it is above 12.4 volts. If it is not then you have a dead battery and it will need to be charged. If you do have sufficient voltage on the battery then check the circuit breaker between the switch and battery to make sure it has not been tripped. If the circuit breaker is good and you have power leaving this to the switch then... view full answer...