APi 748 V1.1 406
4.15
P/N 77500001
Back
Problem
Probable Cause
Solution
Turret only turns one
direction
DC Motor defective
Message Center Rocker Switch
defective
Defective Refrigeration/Turret
Module
Check for 24VDC across motor.
If present, replace.
Replace message Center.
Replace Refrigeration/Turret
Module.
Turret rotates
constantly (Main
Door closed)
Key stuck on Message Center
Disconnect harness from
Message Center. If turret stops, replace
Message Center.
Turret rotates
constantly (Main
Door opened)
Service Switch defective or
shorted to door
Check switch.
Perform continuity test between switch
and door chassis for wire short.
Turret stops between
lobes on cam
Half cycle switch defective or wiring
defective, or unplugged
Check switch for adjustment and wiring
for continuity.
Delivery Door does not
open
Turret out of position and/or in FIFO
mode
Compartments in sold condition
Invalid section lockout
Harness/Connector problem
Defective solenoid
Defective door switch
Missing 24VDC power
Defective Controller
Check turret position.
Set Zero Position routine in the Diagnostic
Menu.
Reprogram Shelf Mode.
Rotate the turret one full revolution with
inside Service Switch.
Check the Sold Out Check program in
Options Menu (
see Section 3
).
Check the turret program (
see Section 3
).
Check harness to Controller from
solenoid.
Check solenoid resistance (
see Table 4-
1
).
Check switch inputs (
see Diagnostic
Menu in Section 4
).
Measure Controller P5 pin 1 to P5 pin 2.
Should be 24VDC.
Replace Controller.
Summary of Contents for Showcase 748
Page 73: ...APi 748 V1 1 406 6 2 P N 77500001 Back Main Door Exterior ...
Page 75: ...APi 748 V1 1 406 6 4 P N 77500001 Back Message Center ...
Page 77: ...APi 748 V1 1 406 6 6 P N 77500001 Back Main Door Interior ...
Page 79: ...APi 748 V1 1 406 6 8 P N 77500001 Back Lower Main Door Components ...
Page 81: ...APi 748 V1 1 406 6 10 P N 77500001 Back Coin Mech Compartment ...
Page 83: ...APi 748 V1 1 406 6 12 P N 77500001 Back Door Assembly Coin Mech Compartment ...
Page 85: ...APi 748 V1 1 406 6 14 P N 77500001 Back Cabinet Final Assembly ...
Page 88: ...APi 748 V1 1 406 6 17 P N 77500001 Back This Page Intentionally Left Blank ...
Page 91: ...APi 748 V1 1 406 6 20 P N 77500001 Back Main Power Switch ...
Page 93: ...APi 748 V1 1 406 6 22 P N 77500001 Back Turret Drive Motor ...
Page 97: ...APi 748 V1 1 406 6 26 P N 77500001 Back Plate Assembly Locks Delivery Door ...
Page 99: ...APi 748 V1 1 406 6 28 P N 77500001 Back Refrigeration Unit 120 V Domestic Control Box Assem ...