Happi Jacks
I have a 2019 Northern Lite with the new style happy jacks the motor is mounted on top of the jack unlike the older model where the motor lay to one side. The passenger rear has a problem when I try ...
Forum Discussion
devildog1971
You can swap two of the motors from jack to jack. If the failure moves with the motor you know which is the problem.
If the failure doesn't move with the motor, you then have to swap the location of two of the jacks with motors. That will determine if the mechanical jack is the problem or the controller.
The new Happijacks are current sensing for control. When the jack reaches the max in either direction, the controller senses excess current and stops the jack by removing power from the motor.
It is common if the mechanical portion of the jack is bent slightly, the motor will pull more current. You are still able to operate the jack manually.
I have the old happijacks which have a clutch mechanism which slips(making the ratcheting noise) when the jack reached the maximum. If they draw too much current it blows a fuse in the controller.
I had two jacks on our TC doing this. Disconneted the motors from the jacks and they ran fine. I straightened them last year and all are working again.
You can swap two of the motors from jack to jack. If the failure moves with the motor you know which is the problem.
If the failure doesn't move with the motor, you then have to swap the location of two of the jacks with motors. That will determine if the mechanical jack is the problem or the controller.
The new Happijacks are current sensing for control. When the jack reaches the max in either direction, the controller senses excess current and stops the jack by removing power from the motor.
It is common if the mechanical portion of the jack is bent slightly, the motor will pull more current. You are still able to operate the jack manually.
I have the old happijacks which have a clutch mechanism which slips(making the ratcheting noise) when the jack reached the maximum. If they draw too much current it blows a fuse in the controller.
I had two jacks on our TC doing this. Disconneted the motors from the jacks and they ran fine. I straightened them last year and all are working again.
