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TROUBLESHOOTING “SELECTION WILL NOT VEND” ISSUES
1. Selection will not vend
a. Does a different selection vend?
i. Shelf harness swapped
1. Perform TEST VEND in TEST MENU ensure proper selection vends
ii. Space-To-Sales has been enabled
1. Check STS configuration in SETUP MENU 2
b. Did the gate actuate at all?
i. Gate “rattled” or solenoid clicked, but gate did not fully actuate
1. Gate Sticking
a. Shuttle bad
b. Bent pins
c. Front knuckle pin not connected to solenoid
2. Possible Solenoid drive problem
a. Check error list. Does list show “LOW LINE” or “LOW 28V”?
i. Bad AC box
ii. Bad electrical supply to vender
iii. Defective board
b. Check error list. Does list show “VEND ERR”, with selection included in
vend error list when pressing “A”?
Perform vend test on selection. Does vend test report “HC+” or “HC”, or
“LC”, or “NC” instead of “OK”?
i. Only occurs on one solenoid
1. Defective solenoid
2. Solenoid-harness connection
ii. Occurs on entire shelf
1. Harness issue
2. Defective board
3. Bad AC box
4. Bad electrical service to vender
iii. Occurs on same column, multiple shelves (A2, B2, C2, D2, E2)
1. Defective board
2. Bad AC box
3. Bad electrical service to vender
ii. Gate did not rattle or solenoid did not click
1. Software attempted vend
a. Check error list. Does error list show “LOW LINE” or “LOW 28V”?
i. Bad AC box
ii. Bad electrical service to vender
b. Check error list. Does error list show “VEND ERR”, with selection
included in vend error list when pressing “A”?
Perform vend test on selection. Does vend test report “HC+” or “HC”, or
“LC”, or “NC” instead of “OK”?
i. Only occurs on one solenoid
1. Defective solenoid
2. Solenoid-harness connection
ii. Occurs on entire shelf
1. Harness issue
2. Defective board
3. Bad AC Box
4. Bad electrical supply to vender
iii. Occurs on same column, multiple shelves (A2, B2, C2, D2, E2)
1. Defective board
2. Bad AC box
3. Bad electrical service to vender
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