Happijac trouble shooting
I have the remote control happijacs on my Adventure TC and one of them does not work. I suspect a possible short in the wiring from the controller to the jack. I have verified that if I switch anothe...
Forum Discussion
JimK-NY wrote:
Unfortunately the Happijac motors are junk. The issue is poor sealing against water intrusion. I have tried various methods for sealing the motors but still have had two fail.
You are correct. If your camper sits outside you should cover the jack heads while in storage. I always use freezer bags cut in the right place to allow the bag to slide down and then use packaging foam stuffed around the jack to hold the plastic covers.
My jacks are all working since 2003 except the one that showed the problem of water intrusion years ago. Since then they have been covered ea. winter.
I also remove the white plastic cups to the electric motor and squirt oil in the electric motor bearing. The bottom bearing gets the water build up, corrodes, slows down the motor, eventually seizing.
