Sad Happijac Problem

One fuse for each jack located in the control box.

Looking at this picture of the main logic board, there is wiring for each jack. What is under the cover is uncertain.

picture of logic board

However, if I was trying to trouble shoot it, and had one leg that did not work, I might be inclined to take the wiring off of the board for all four jacks, and then use a set of jumper wires to connect to a different logic board output. If the jack works, it's something on the board.

If it doesn't work, try connecting the wiring from a working jack to the place on the logic board where it was not working. If that jack still works in the "bad spot" on the board, the problem might be in the jack itself.

If it turns out you need a new motor shoot me a pm

There was a fuse for each jack on my 2005 Citation try flipping up that arm that disengages the motor and crank it by hand to see if its seized.

There is a fuse for each jack in the control module. Pop the cover off and it is usually pretty obvious which fuse is blown.
I always carry several spares.
Take the hand crank and move the offending jack to make sure it is moving freely before replacing the fuse.
Brian

All of the above. And if it is like mine was, the motor is seized and will blow the next fuse right away...

One or more of your Happijac motors looks like this picture.


Ive had to replace two so far, bad ,bad design.
To keep out water I keep them covered when not traveling.


The good news is there easy to change , the bad news they or not cheep.

beachbum2011 wrote:
One or more of your Happijac motors looks like this picture.


Ive had to replace two so far, bad ,bad design.
To keep out water I keep them covered when not traveling.


The good news is there easy to change , the bad news they or not cheep.

Thanks for the picture, I used to put plastic bags over them, this is
much better:)

For a company that makes a product intended to be used outdoors, HJ does a terrible job of protecting against the weather. Since I bought my camper I've sent 5 motor heads back for rebuild (a couple more than once) and I recently noticed this on one of the motors that hasn't needed repair, yet.


Note the high quality UV resistant sheath on the wiring. (sarcasm)

Fortunately the camper's under roof now so hopefully my seized motor days are over.

You can blow the white covers off with compressed air which allows you access to get oil into the lower bearing. Thats the one that sits in moisture. The lower end cap to motor housing TRAPS moisture on the bearinG.

Once you blow the white covers off you'll see a small orifice 9very bottom sides) in which to spray 3 in one oil in there. Spray till you see it dripping out the housing. It won't hurt anything. Do this ea fall and keep them covered when not traveling. Only replaced 1 motor in 14 years since doing this.

I cover with freezer bags and stuff foam packaging blocks to keep the wind from blowing them off during storage.