Legacy Vending Models
Troubleshooting guidance for older vending machine models still in service.
113 articles
Browse all guides in this category.
National 157 display and keypad issues
Fix display errors and unresponsive keypads. (National 157).
National 157 MDB communication errors
Diagnose MDB bus issues on older controllers. (National 157).
National 157 random reboots
Power stability and controller checks. (National 157).
National 157 selection mapping errors
Correct mapping between selections and columns. (National 157).
National 157 controller reset and config recovery
Reset and restore configuration safely. (National 157).
National 157 door switch faults
Fix door switch and service mode errors. (National 157).
National 157 coin acceptor issues
Diagnose coin acceptance and channel setup. (National 157).
National 157 bill validator issues
Resolve bill acceptance problems. (National 157).
National 157 column mis-vends
Fix product alignment and vend timing issues. (National 157).
National 157 running warm
Refrigeration and temperature drift troubleshooting. (National 157).
Rowe BC-12 display and keypad issues
Fix display errors and unresponsive keypads. (Rowe BC-12).
Rowe BC-12 MDB communication errors
Diagnose MDB bus issues on older controllers. (Rowe BC-12).
Rowe BC-12 random reboots
Power stability and controller checks. (Rowe BC-12).
Rowe BC-12 selection mapping errors
Correct mapping between selections and columns. (Rowe BC-12).
Rowe BC-12 controller reset and config recovery
Reset and restore configuration safely. (Rowe BC-12).
Rowe BC-12 door switch faults
Fix door switch and service mode errors. (Rowe BC-12).
Rowe BC-12 coin acceptor issues
Diagnose coin acceptance and channel setup. (Rowe BC-12).
Rowe BC-12 bill validator issues
Resolve bill acceptance problems. (Rowe BC-12).
Rowe BC-12 column mis-vends
Fix product alignment and vend timing issues. (Rowe BC-12).
Rowe BC-12 running warm
Refrigeration and temperature drift troubleshooting. (Rowe BC-12).
Seaga Combo display and keypad issues
Fix display errors and unresponsive keypads. (Seaga Combo).
Seaga Combo MDB communication errors
Diagnose MDB bus issues on older controllers. (Seaga Combo).
Seaga Combo random reboots
Power stability and controller checks. (Seaga Combo).
Seaga Combo selection mapping errors
Correct mapping between selections and columns. (Seaga Combo).
Seaga Combo controller reset and config recovery
Reset and restore configuration safely. (Seaga Combo).
Seaga Combo door switch faults
Fix door switch and service mode errors. (Seaga Combo).
Seaga Combo coin acceptor issues
Diagnose coin acceptance and channel setup. (Seaga Combo).
Seaga Combo bill validator issues
Resolve bill acceptance problems. (Seaga Combo).
Seaga Combo column mis-vends
Fix product alignment and vend timing issues. (Seaga Combo).
Seaga Combo running warm
Refrigeration and temperature drift troubleshooting. (Seaga Combo).
USI 3014 display and keypad issues
Fix display errors and unresponsive keypads. (USI 3014).
USI 3014 MDB communication errors
Diagnose MDB bus issues on older controllers. (USI 3014).
USI 3014 random reboots
Power stability and controller checks. (USI 3014).
USI 3014 selection mapping errors
Correct mapping between selections and columns. (USI 3014).
USI 3014 controller reset and config recovery
Reset and restore configuration safely. (USI 3014).
USI 3014 door switch faults
Fix door switch and service mode errors. (USI 3014).
USI 3014 coin acceptor issues
Diagnose coin acceptance and channel setup. (USI 3014).
USI 3014 bill validator issues
Resolve bill acceptance problems. (USI 3014).
USI 3014 column mis-vends
Fix product alignment and vend timing issues. (USI 3014).
USI 3014 running warm
Refrigeration and temperature drift troubleshooting. (USI 3014).
AP 123 display and keypad issues
Fix display errors and unresponsive keypads. (AP 123).
AP 123 MDB communication errors
Diagnose MDB bus issues on older controllers. (AP 123).
AP 123 random reboots
Power stability and controller checks. (AP 123).
AP 123 selection mapping errors
Correct mapping between selections and columns. (AP 123).
AP 123 controller reset and config recovery
Reset and restore configuration safely. (AP 123).
AP 123 door switch faults
Fix door switch and service mode errors. (AP 123).
AP 123 coin acceptor issues
Diagnose coin acceptance and channel setup. (AP 123).
AP 123 bill validator issues
Resolve bill acceptance problems. (AP 123).
AP 123 column mis-vends
Fix product alignment and vend timing issues. (AP 123).
AP 123 running warm
Refrigeration and temperature drift troubleshooting. (AP 123).
AP 113 display and keypad issues
Fix display errors and unresponsive keypads. (AP 113).
AP 113 MDB communication errors
Diagnose MDB bus issues on older controllers. (AP 113).
AP 113 random reboots
Power stability and controller checks. (AP 113).
AP 113 selection mapping errors
Correct mapping between selections and columns. (AP 113).
AP 113 controller reset and config recovery
Reset and restore configuration safely. (AP 113).
AP 113 door switch faults
Fix door switch and service mode errors. (AP 113).
AP 113 coin acceptor issues
Diagnose coin acceptance and channel setup. (AP 113).
AP 113 bill validator issues
Resolve bill acceptance problems. (AP 113).
AP 113 column mis-vends
Fix product alignment and vend timing issues. (AP 113).
AP 113 running warm
Refrigeration and temperature drift troubleshooting. (AP 113).
Vendo 721 display and keypad issues
Fix display errors and unresponsive keypads. (Vendo 721).
Vendo 721 MDB communication errors
Diagnose MDB bus issues on older controllers. (Vendo 721).
Vendo 721 random reboots
Power stability and controller checks. (Vendo 721).
Vendo 721 selection mapping errors
Correct mapping between selections and columns. (Vendo 721).
Vendo 721 controller reset and config recovery
Reset and restore configuration safely. (Vendo 721).
Vendo 721 door switch faults
Fix door switch and service mode errors. (Vendo 721).
Vendo 721 coin acceptor issues
Diagnose coin acceptance and channel setup. (Vendo 721).
Vendo 721 bill validator issues
Resolve bill acceptance problems. (Vendo 721).
Vendo 721 column mis-vends
Fix product alignment and vend timing issues. (Vendo 721).
Vendo 721 running warm
Refrigeration and temperature drift troubleshooting. (Vendo 721).
Vendo 480 display and keypad issues
Fix display errors and unresponsive keypads. (Vendo 480).
Vendo 480 MDB communication errors
Diagnose MDB bus issues on older controllers. (Vendo 480).
Vendo 480 random reboots
Power stability and controller checks. (Vendo 480).
Vendo 480 selection mapping errors
Correct mapping between selections and columns. (Vendo 480).
Vendo 480 controller reset and config recovery
Reset and restore configuration safely. (Vendo 480).
Vendo 480 door switch faults
Fix door switch and service mode errors. (Vendo 480).
Vendo 480 coin acceptor issues
Diagnose coin acceptance and channel setup. (Vendo 480).
Vendo 480 bill validator issues
Resolve bill acceptance problems. (Vendo 480).
Vendo 480 column mis-vends
Fix product alignment and vend timing issues. (Vendo 480).
Vendo 480 running warm
Refrigeration and temperature drift troubleshooting. (Vendo 480).
Dixie Narco 600E display and keypad issues
Fix display errors and unresponsive keypads. (Dixie Narco 600E).
Dixie Narco 600E MDB communication errors
Diagnose MDB bus issues on older controllers. (Dixie Narco 600E).
Dixie Narco 600E random reboots
Power stability and controller checks. (Dixie Narco 600E).
Dixie Narco 600E selection mapping errors
Correct mapping between selections and columns. (Dixie Narco 600E).
Dixie Narco 600E controller reset and config recovery
Reset and restore configuration safely. (Dixie Narco 600E).
Dixie Narco 600E door switch faults
Fix door switch and service mode errors. (Dixie Narco 600E).
Dixie Narco 600E coin acceptor issues
Diagnose coin acceptance and channel setup. (Dixie Narco 600E).
Dixie Narco 600E bill validator issues
Resolve bill acceptance problems. (Dixie Narco 600E).
Dixie Narco 600E column mis-vends
Fix product alignment and vend timing issues. (Dixie Narco 600E).
Dixie Narco 600E running warm
Refrigeration and temperature drift troubleshooting. (Dixie Narco 600E).
Dixie Narco 501E display and keypad issues
Fix display errors and unresponsive keypads. (Dixie Narco 501E).
Dixie Narco 501E MDB communication errors
Diagnose MDB bus issues on older controllers. (Dixie Narco 501E).
Dixie Narco 501E random reboots
Power stability and controller checks. (Dixie Narco 501E).
Dixie Narco 501E selection mapping errors
Correct mapping between selections and columns. (Dixie Narco 501E).
Dixie Narco 501E controller reset and config recovery
Reset and restore configuration safely. (Dixie Narco 501E).
Dixie Narco 501E door switch faults
Fix door switch and service mode errors. (Dixie Narco 501E).
Dixie Narco 501E coin acceptor issues
Diagnose coin acceptance and channel setup. (Dixie Narco 501E).
Dixie Narco 501E bill validator issues
Resolve bill acceptance problems. (Dixie Narco 501E).
Dixie Narco 501E column mis-vends
Fix product alignment and vend timing issues. (Dixie Narco 501E).
Dixie Narco 501E running warm
Refrigeration and temperature drift troubleshooting. (Dixie Narco 501E).
Vendo 721 display errors
Diagnose display or keypad issues.
Rowe CBA-2 bill acceptor failures
Fix common bill acceptor issues on legacy units.
Vendo 480 refrigerant leak symptoms
Identify leak symptoms and next actions.
Dixie Narco 501E icing up
Fix evaporator icing and airflow issues.
National 146 controller reset
Reset and configuration recovery steps.
National 157 snack motor failure
Diagnose motor and drive faults.
Rowe BC-12 coin mech issues
Coin mech cleaning and configuration.
Seaga combo temperature drift
Refrigeration checks for combo units.
Seaga snack spiral jams
Clear jams and prevent repeat issues.
USI 3014 random reboots
Power stability and controller checks.
AP 123 mis-vend troubleshooting
Fix mis-vends and product fit issues.
AP 113 selection errors
Resolve selection errors and switch faults.
Dixie Narco 501E running warm
Refrigeration and temperature drift fixes for the 501E.