77X INSTALLATION & OPERATION MANUAL
771/772/773/774 MODELS
47
Error #430: Gas #2 - CO2 Out
The CO2 pressure is less than 45 PSIG (310 kPag) for barrel 2.
Error #440: Gas #1 - Low Regulated CO2 PSI
The regulated CO2 pressure dropped below 50 PSIG (345 kPag) for barrel 1.
Error #450: Gas #1 - High Regulated CO2 PSI
The regulated CO2 pressure is above 70 PSIG (483 kPag) for barrel 1.
Error #460: Gas #1 - Low Regulated N2 PSI
The regulated N2 pressure dropped below 50 PSIG (345 kPag) for barrel 1.
Error #470: Gas #1 - High Regulated N2 PSI
The regulated N2 pressure is above 70 PSIG (483 kPag) for barrel 1.
Error #480: Gas #2 - Low Regulated CO2 PSI
The regulated CO2 pressure dropped below 50 PSIG (345 kPag) for barrel 2.
Error #490: Gas #2 - High Regulated CO2 PSI
The regulated CO2 pressure is above 70 PSIG (483 kPag) for barrel 2.
Error #1000: Gas #2 - Low Regulated N2 PSI
The regulated N2 pressure dropped below 50 PSIG (345 kPag) for barrel 2.
Error #1010: Gas #2 - High Regulated N2 PSI
The regulated N2 pressure is above 70 PSIG (483 kPag) for barrel 2.
1
Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Ensure the N2 supply is not low.
2
Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Ensure the CO2 supply is not low.
2
Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Ensure the N2 supply is not low.
2
Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Check the “Gas 2” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Ensure the CO2 supply is not low.
2
Check the “Gas 1” regulator on the header tray and ensure it is set to 60 PSIG (414 kPag).
1
Replace or refill the CO2 tank.
2
Ensure the CO2 shutoff valve at the back of the dispenser is not turned off.
3
Ensure the CO2 pressure transducer is connected and working properly.
4
Ensure the CO2 supply pressure at the dispenser is reading 70 PSIG (483 kPag). Adjust the regulator
if needed.
