Lennox 19V30 - Page 82

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Table 19. Alert Codes and Troubleshooting
GF= Gas Furnace, AH=Air Handler, ID=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OD=Outdoor Unit (AC or HP), PA=Pure Air S, ZA=Zone system and TS=Thermostat
Alert
Code
Inverter
Flash
Code
Priority
Condition
Actual Displayed
Alert Text
Under dealer
control center >
Notications
Component or System Operational State and Troubleshooting Tip How to clear alert code
428 22
Service
Soon/Service
Urgent
OD Inverter
High Main Input
Current
The inverter has detected a high main input current condition.
• If condition is detected, outdoor unit will stop (compressor and fan) – moderate condition.
• Anti-short cycle is initiated.
• If condition occurs 10 times within an hour, system will lockout – critical condition.
• Inverter LEDs will ash code 22.
• Refer to the unit service documentation for detailed troubleshooting procedures.
Inverter ash code 22.
The sequence is:
• Red LED: Two Flashes
• Green LED: Two Flashes
NOTE: Inverter normal operations with no error code present is as follows. Red LED is ON and
Green LED is OFF.
To clear, disconnect power to outdoor
unit and restart.