Haier GE NS18HM Service Manual page 80

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
flashes flashes
Table 24. Outdoor Control 7-Segment Display Alert Codes and Inverter LED Flash Codes
Priority Actual Displayed
Condition Alert Text
The inverter has detected a power factor correction (PFC) circuit
over-current condition.
• The inverter has detected an PFC over current condition. This may
• Outdoor control will display the code when the inverter has detected
• After three minutes, the inverter will reset and the compressor will
• If the error condition occurs 10 times within a 60 minute rolling time
Service OD Inverter PFC • Possible issue is system running at high pressures.
Urgent Input Over-current
• Check for high pressure trips or other alert codes in thermostat and
• Inverter LEDs will flash code 73.
• Refer to the unit service documentation for detailed troubleshooting
Inverter flash code 73.
The sequence is:
•
•
NOTE:
Page 80
Component or System Operational State and Troubleshooting
Tip
be caused by a high load condition, high pressure, or outdoor fan
failure.
the error – moderate condition.
resume 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.
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.
31-5000751 Rev. 0