Good Sam Club Open Roads Forum: Jack leg help - Happi jac
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 > Jack leg help - Happi jac

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tiptoptune

Breckenridge Colorado

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Posted: 11/06/21 08:11pm Link  |  Quote  |  Print  |  Notify Moderator

left rear leg on my 2000 Bigfoot TC with happi jacs will not go down. It does work if i switch the wires at the logic board controller to another location. So the wiring to the leg is good. Spiral cord ohms out. so has to be the hand push button control or the main logic board controller.

Any ideas how to tell which is bad?
Any electric geeks out there want to compare my test to theirs? measured volts at cord connector on the logic board controller with cord disconnected and connector facing me, starting from the left, first 4 pins had 0.9 volts, 5th pin has 5 volts, 6 & 7 have 0 volts, 8th pin has 5 volts. Have the same readings at the cord that plugs into the hand control. I used a back probe thin wire end on my test leads to touch one pin at a time.

Thanks for any help.


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Previous - lance TC, King Of Road 5th.

rhodedog98

Rhode Island

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Posted: 11/07/21 08:53am Link  |  Quote  |  Print  |  Notify Moderator

I would have called them Wizards not geeks!!!

joerg68

St. Ingbert, Germany

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Posted: 11/07/21 11:16am Link  |  Quote  |  Print  |  Notify Moderator

Your analysis re. controller or main board sounds logical.
Does the main board have fuses that you can check?
Is there a way you could swap controllers with someone else for testing?


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JimK-NY

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Posted: 11/07/21 12:06pm Link  |  Quote  |  Print  |  Notify Moderator

Yes, check the fuses. My control board has at least two.

tiptoptune

Breckenridge Colorado

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Posted: 11/07/21 09:09pm Link  |  Quote  |  Print  |  Notify Moderator

oops. wizards it is. sorry all.
Board has two fuses, both good. Parts are expensive, or i getting cheap. maybe both. We may be selling this TC and truck this winter or spring once find a class c that fits us so not wanting to spend a lot. $500 or something for main board and hand control, $250 for board alone, $150 for control. Too much. So i am trying to determine which is bad. i did read to cycle the power to the board. going to try that and call happi jac to see if they can give me any testing specs. anyone want to by a three legged camper :-)

wnjj

Cornelius, Oregon

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Posted: 11/07/21 10:03pm Link  |  Quote  |  Print  |  Notify Moderator

If the jack doesn’t work by itself or with the “all” buttons I’d say the issue is in the controller board and not with the keypad. The coiled phone cord sends codes down to the controller so very unlikely to just fail one jack. Also if the other 3 run when pressing the all up/down buttons that means the controller keypad is working and the issue is local to the controller board for that one jack output.

If it were mine, I’d open the control box and see if it’s something cheap like the $8 relay on my fridge’s control board.

tiptoptune

Breckenridge Colorado

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Posted: 11/27/21 08:21am Link  |  Quote  |  Print  |  Notify Moderator

wnjj wrote:

If the jack doesn’t work by itself or with the “all” buttons I’d say the issue is in the controller board and not with the keypad. The coiled phone cord sends codes down to the controller so very unlikely to just fail one jack. Also if the other 3 run when pressing the all up/down buttons that means the controller keypad is working and the issue is local to the controller board for that one jack output.

If it were mine, I’d open the control box and see if it’s something cheap like the $8 relay on my fridge’s control board.


Thanks wnjj. all function except left rear leg down with the all button. anyone any help how to test the board relays? i can hear relays click for other functions. Going to try to test some later today. happi Jac no longer makes parts for this vintage. $500 to convert to wireless which is only option they have. i tried and tried to get tech support on how to test the board to see if a single component could be replaced. they do not provide that info.

ticki2

NH

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Posted: 11/27/21 11:19am Link  |  Quote  |  Print  |  Notify Moderator

You might try checking for circuit board repair near you . There are a number of places that test and repair all types of printed circuits .


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ajriding

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Posted: 11/27/21 11:48am Link  |  Quote  |  Print  |  Notify Moderator

I'm not advertising, but I do have a Hippajack board.
It came with my TC but seller did not have the remote, nor motors, so I bought a new everything.
I can't remember if this board works or not. Maybe I never tested it, or maybe I used it then later replaced with the new board.
Maybe it would be easy to test.
I bought the camper without motors, so had to crank by hand. I guess the motors I bought came with a new board so thats how I ended up with a new board.
It operates on wired for sure. The wired uses a phone cord as the wire. I do not know about wireless as there is no antenna wire like the new ones have.
My new one had the phone jack and also was wireless. The controller could do both.
The old one is in a box and to me is worth less than what you are talking about having to spend... just saying.
Etrailer dot com sells these.
There are no control buttons on the motherboard, so no way to test it without the remote or to jump the phone jack wires and I do not know what terminal to jump to test it, or if is using a switched signal or computer gibberish signal.
That's my entire story. Hope you enjoyed.

* This post was edited 11/27/21 12:03pm by ajriding *

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