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Error #140: Low regulated CO2 PSI
The regulated CO2 pressure dropped below 50 PSI.
1 Ensure the CO2 supply is not low.
2 Check the “carbonation” regulator on the header tray and ensure it is set to 60 PSI.
Error #150: High regulated CO2 PSI
The regulated CO2 pressure is above below 70 PSI.
1 Check the “carbonation” regulator on the header tray and ensure it is set to 60 PSI.
Error #160: Low Line Voltage
The voltage supply is below 200 volts
1 Install a boost transformer. Even if the voltage is slightly above 200 V a boost transformer may
be needed as fluctuations in power during the day or during unit operation may cause it to drop
below 200 volts and shut down the unit.
Error #170: High Line Voltage
The voltage supply is above 254 volts
1 Install a buck transformer.
Error #180: LPSI transducer
The low side refrigeration pressure is not reading correctly.
1 Ensure the pressure transducer is plugged in.
2 Replace the transducer if faulty.
Error #190: HPSI transducer
The high side refrigeration pressure is not reading correctly.
1 Ensure the pressure transducer is plugged in.
2 Replace the transducer if faulty.
Error #200: Return Temperature Sensor
The refrigeration return (suction) temperature sensor is not reading correctly.
1 Ensure the temperature sensor is plugged in.
2 Replace the sensor if faulty.
Error #210: Refrigeration Malfunction
The refrigeration pressures were not in the correct range.
1 Run the fill diagnostic sequence to determine the reason for the failure.
Diagnostic Fault Codes
The following codes are faults that can be displayed after running a diagnostic sequence.
Error #500: Fan not turning on
1 Remove control board and check for a blown fan fuse (F1 and F2). If a fuse is blown then a
fan or capacitor malfunction may be possible.
2 If fuses are OK, reinstall control board.
3 Disconnect wiring harnesses at fan capacitor.
4 Manually turn fan on and check for line voltage (230V) between the connectors removed from
the capacitor. If no voltage is present then replace control board.
5 If correct voltage is present then substitute a “known to be good” capacitor and try to operate
fan again.
6 If fan fails to start with good capacitor then replace both fan and capacitor.
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