FlavorShot AC-FS5, Service Manual

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3. Pump driver motor assembly – voltage checks
1. Remove the back panel from the dispenser by removing the 8 screws.
2. Locate the Pump Circuit Boards at the back of each tank pump.
3. Check JP1 connector on the driver board located at the back of the pump.
4. Next to JP1 connector on Driver PCB, locate 3 vertical test points (pins).
3. Place probes on the top two pins. They should register 12 VDC.
•
If it does not register 12 VDC, check to see if the other pumps do. If they
do, check the cable assembly for proper connections. Replace the cable
if necessary.
4. The green LED (D1) also should be on, indicating voltage at the connection.
•
If the green LED (D1) is not on, check to see if the other pumps are on. If
they are, the problem may be in the cable connection to the pump.
Change the cable.
•
If the green LED (D1) still is not on, replace the driver board on the pump
assembly. For instructions to replace pump driver board circuit board, see
pages 30, 31.
Driver – Pump Circuit Board