77X INSTALLATION & OPERATION MANUAL
771/772/773/774 MODELS
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Error #351, 352: Flavor Out 1
Error #361, 362: Flavor Out 2
Error #371, 372: Flavor Out 3
Error #381, 382: Flavor Out 4
The pressure for flavor syrup is less than 45 PSIG (310 kPag), where the “Out” number represent the flavor number.
Error #390: No ADA Keypad Detected
The ADA keypad is missing, disconnected or damaged.
Error #400: ADA Keypad Shorted
The ADA keypad button(s) are damaged or have been pressed longer than 12 seconds.
Error #410: Gas #1 - N Out
Error #420: Gas #2 - N Out
The nitrogen (N) pressure is less than 45 PSIG (310 kPag) for barrel 1 (Gas #1) or barrel 2 (Gas #2).
1 Replace or refill the N tank.
2 Ensure the N shuto valve at the back of the dispenser is not turned o.
3 Ensure the N pressure transducer is connected and working properly.
4
Ensure the N supply pressure at the dispenser is reading 70 PSIG (483 kPag). Adjust the regulator
if needed.
1 Ensure ADA keypad has no visible damage.
2
Ensure the keypad connector is plugged in correctly. Make sure that the arrows on each connector
align.
3 Replace the keypad if faulty.
1 Ensure the ADA keypad is connected correctly. Make sure that the arrows on each connector align.
2 Replace the keypad if faulty.
1 Replace the empty BIB.
2 Ensure the gas line is connected to the BIB pump.
3 Ensure the BIB pump is operating correctly.
4 Ensure the gas tank is not empty.
5 Ensure any syrup shuto valves at the back of the dispenser are not turned o.
6
Ensure the syrup supply pressure at the dispenser is reading 70 PSIG (483 kPag). Adjust the regulator
if needed.
7 Ensure the syrup pressure transducer for that avor is connected and working properly.
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