Haier GE NS23AM Service Manual page 41

NOTE: System fault and lockout codes take precedence over system status codes (cooling, heating operating percentages or defrost/dehumidification). Only the latest
active fault or lockout codes are displayed (if present). If no fault or lockout codes are active, then system status codes are displayed.
GF= Gas Furnace, AH=Air Handler, ID=Indoor unit (GF or AH), HP=Heat Pump, AC=Air Conditioner, OD=Outdoor Unit (AC or HP), ZA=Zone system and TS=Thermostat
Inverter Flash
Code
Alert Inverter
Code Code
Red Green
LED LED
6 2
436 62
6 5
437 65
31-5000746 Rev. 0
Priority Actual Displayed Component or System Operational State
Condition Alert Text and Troubleshooting Tip
Inverter heat sink temperature exceeded limit.
• This occurs when the heat sink temperature exceeds the inverter limit.
• If temperature remains high, outdoor unit will stop both compressor and
• Anti- short cycle is initiated.
•
• The screws that hold the inverter to the inverter board were loose causing
Service
OD Inverter
• Tighten screws that hold the heat sink to the inverter control board.
Soon/
High Heat-Sink
Service
NOTE:
Temperature
Urgent
•
• Refer to the unit service documentation for detailed troubleshooting
The sequence is:
•
•
NOTE:
Heat sink temperature sensor fault has occurred (temperature less than
4ºF or greater than 264ºF after 10 minutes of operation).
• When the temperature sensor detects a temperature less than 4ºF or
• Outdoor unit will stop both compressor and fan – moderate condition.
• Anti-short cycle is initiated.
•
Service
OD Inverter Heat-
Soon/ •
Sink temp Sensor
Service
Fault • Refer to the unit service documentation for detailed troubleshooting
Urgent
The sequence is:
•
•
NOTE:
Table 11. Alert Codes and Troubleshooting
the heat sink.
fan – moderate condition.
condition.
poor contact between these two components.
screws.
procedures.
Red LED: Six Flashes
Green LED: Two Flashes
Inverter normal operations with no error code present is as
follows. Red LED is ON and Green LED is OFF.
greater than 264ºF after 10 minutes of operation.
condition.
procedures.
Red LED: Six Flashes
Green LED: Five Flashes
Inverter normal operations with no error code present is as
follows. Red LED is ON and Green LED is OFF.
Page 41
How to Clear
Alert Code
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.
Moderate priority
condition will
automatically clear
when the inverter
sends an alert code
clear message.
Critical priority
condition can
be cleared by
disconnecting and
reconnecting power
to outdoor unit to
restart.