Sparking Switch Board When Switch Wiper Touches -> '89 Ez-Go

[tmott33]

In the middle of a round the other day, my cart lost power and I heard sparking. On the way into the barn, the throttle stuck, which I am thinking has to do with the wiper and contacts melting and sticking together. After a bit of investigation, I found that when the switch wiper reached the third and fourth contact, blue sparks shot out. . I checked all contacts and saw no corrosion as well as the coils. There did not appear to be any damage to the resistor coils. Is there anything else I should check before purchasing a new switch board and wiper? Did this happen because of the age of the cart, or is there something else I should be on the look out for? Thanks in advance for any help.