I visited one of my vending locations. I found out that there is an out-of-order sign on the snack machine. I immediately took a look on what is happening to the vending machine.
There is a continual clicking and whirling sound on the coin mechanism. I have to put the defective unit out for retirement.
This is another classical problem on most of the vending machine.
You always have to bring a spare coin mechanism with you. This will avoid time and gasoline to come back and forth to location.
This is relatively a short article since this is very straightforward.