Install Instructions

88
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
435 60
Service
Urgent
OD Inverter
EEPROM
Checksum fault
Inverter internal error.
• When this error occurs, the outdoor control will cycle power to the inverter by opening the
contactor for two minutes – moderate condition.
• Outdoor control will cycle power to the inverter three times and then outdoor unit is locked out –
critical condition.
• Inverter LEDs will ash code 60.
• Refer to the unit service documentation for detailed troubleshooting procedures.
Inverter ash code 60.
The sequence is:
• Red LED: Six Flashes
• Green LED: Off
NOTE: Inverter normal operations with no error code present is as follows. Red LED is ON and
Green LED is OFF.
To clear alert code disconnect power
to outdoor unit and restart.
436 62
Service
Soon/Service
Urgent
OD Inverter
High Heat-Sink
Temperature
Inverter heat sink temperature exceeded limit.
• This occurs when the heat sink temperature exceeds the inverter limit. Inverter will issue
inverter alert code 13 rst and slow down to try to cool the heat sink.
• If temperature remains high, outdoor unit will stop both compressor and fan – moderate
condition.
• Anti- short cycle is initiated.
• If condition occurs ve times within an hour, system will lockout – critical condition.
• The screws that hold the inverter to the inverter board were loose causing poor contact
between these two components.
• Tighten screws that hold the heat sink to the inverter control board.
NOTE: Wait ve minutes for all capacitors to discharge before checking screws.
• Inverter LEDs will ash code 62.
• Refer to the unit service documentation for detailed troubleshooting procedures.
Inverter ash code 62.
The sequence is:
• Red LED: Six 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.
Moderate condition will automatically
clear when the inverter sends an
alert code clear message.
Critical condition is cleared by
disconnecting power to the outdoor
unit and restart.