Haier GE NS23AM Service Manual page 42

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
7 3
438 73
Priority Actual Displayed Component or System Operational State
Condition Alert Text and Troubleshooting Tip
The inverter has detected a power factor correction (PFC) circuit over-
current condition.
• The inverter has detected an PFC over current condition. This may be
• Outdoor control will display the code when the inverter has detected the
• After three minutes, the inverter will reset and the compressor will resume
• If the error condition occurs 10 times within a 60 minute rolling time
• Possible issue is system running at high pressures.
Service OD Inverter PFC
• Check for high pressure trips or other alert codes in thermostat and
Urgent Input Over-current
•
• Refer to the unit service documentation for detailed troubleshooting
The sequence is:
•
•
NOTE:
Table 11. Alert Codes and Troubleshooting
caused by a high load condition, high pressure, or outdoor fan failure.
error – moderate condition.
operation.
period, the outdoor unit control will lock out operation of the outdoor unit
– critical condition.
outdoor control.
procedures.
Red LED: Seven Flashes
Green LED: Three Flashes
Inverter normal operations with no error code present is as
follows. Red LED is ON and Green LED is OFF.
Page 42
How to Clear
Alert Code
Moderate priority
condition is
automatically cleared
when the inverter
sends a clear
message.
Critical priority
condition will
automatically clear
when inverter is
power cycled.
31-5000746 Rev. 0