A Dead Hovering Board Was Brought Back To Life
As the customer explained after he brought in the hovering board for repair; he was riding and suddenly it went dead and the result of that the guy was thrown off the board and almost hurt himself.
Luckily the guy was not hurt but still insisted to get this machine up and running. From experience, the cause of this incident usually one or two of the Mosfets on the main board were gone bad.
When these Mosfets get shorted, the wheel on that side of the shorted Mosfets does not turn the way it should be so it will suddenly stop ( at least one tire will stop) throwing the rider off board.
As I took the cover off to expose the main board on the left side of the photo but before I do anything on that board, it is very important to disconnect the battery on the right side of the board.
That is the main board and if you look closely you would see the Mosfets screwed down to the heat sink beneath the actual board.
And as expected, two Mosfets shorted on that board and they have to be replaced. The rotation of the tire on the left of this board was very stiff due to the fact that these two Mosfets were shorted out. The moment these shorted parts were taken off board, the rotation of that tire was smooth once again.
The part number for both Mosfets was RU6888R3 and were not very easy to find in the local store so I had to order them online and it took about two weeks to get to me.
I replaced the two shorted Mosfets and turned the hover board on and it stayed on which is an indication of a working device. If there was still a short on that board, it will not come one.
This article was prepared for you by Waleed Rishmawi, one of our ‘Master Authors’ and currently working in the Bethlehem area of Palestine repairing electrical and electronic equipment.
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Note: You can check his previous repair articles in the link below: