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horizon glass front snack vendor model 3085 not working and display blank

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Thu, 02/06/2014 - 11:43
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rlvend33
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Last seen: 10 years 10 months ago
Joined: 02/06/2014 - 11:25
horizon glass front snack vendor model 3085 not working and display blank

This machine keeps tripping my circuit breaker and then is unuseable. I began removing plugs from the circuit board to find the issue. I noticed that once I unplugged the coin mech connector breaker did not trip after powering up. So I replaced the coin mech and worked fine for a couple of days. Now the same problem again circuit breaker tripped.Is it common for motherboards to short internally on this model? I am new to the vending business trying to fix what I can by myself. If you know of any common issues with this machine or have experienced this yourself? I would appreciate any advice on this issue. Thank you and have a good day!!

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Edited by: rlvend33 on 02/06/2014 - 13:24
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Sun, 02/09/2014 - 22:45
daryl
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Last seen: 2 years 10 months ago
Joined: 10/19/2010 - 21:00
USI motherboard shorting out.

rlvend33,
I don't know how common an issue it is, but I had a USI 3054 Lance snack machine with the same problem, a short causing the motherboard to short out and erasing all the prices, it would keep working sometimes but the selections would have random crazy prices ($7.45 for Doritos!). The location was not happy. I finally just replaced their machine with an AP.
If you find a source for motherboards for these old USI's let me know, I might just try a replacement once.
daryl
PS: If it helps any the Service Manual is in the library here: http://www.vend-resource.com/book/usi-3084-3085-horizon-snack-vending-ma...

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