Balboa Water Group Circuit Board For VS501SZ Systems 54378-02

"My old board failed and this board was an exact replacement. I had the hot tub up and running very quickly."

I installed this board in my Four Winds hot tub on Friday, it took about an hour. The most important thing is to make sure all of the wire jumpers on the board are landed on the same terminals as the original board. Also correct to the wiring schematic installed on the inside on the control board cover. The tub went thru a series of operational tests before settling down and operating normally (took a couple of hours). The two speed pump ran for quite a while before getting into a cycle. But it's holding temperature and operating normally. One issue I had was the replacement board was a different number than the original board. I found out that Four Winds had Balboa change a wire position on the original board, which caused them to give the board a different number. All i had to do is go by the schematic drawing and move one jumper connection.

"Exact fit works good"

"This board was the exact replacement I needed. Took me less than 15 minutes to get my spa running again."