Haier GE NS23AM Service Manual page 80

Error Codes:
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
180
182
424
Table 25. Outdoor Control 7-Segment Display Alert Codes – Outdoor Control Errors
DC Inverter Control Operation, Checkout, Status / Error Codes
Operation Of Components:
Converter:
Converts AC (alternating current) to DC (direct current).
Power Factor Correction (PFC) Circuit:
The PFC module is an integrated part of the outdoor inverter that monitors the DC bus for high, low and abnormal voltage
conditions. If any of these conditions are detected, the PFC function and compressor will stop.
Intelligent (Inverter) Power Module (IPM):
The IPM converts DC power into AC power. The control method is known as pulse width modulation (PWM). This means
and voltage.
Communication Control Circuit:
Receives and sends message between the inverter and the outdoor control.
Priority Actual Displayed
Condition Alert Text
The thermostat has found a problem with the outdoor sensor
in the outdoor unit or the optional outdoor sensor connected
to the indoor unit. In normal operation after system compo-
nent control recognizes sensors, the alert code will be sent if
valid temperature reading is lost.
• Compare outdoor sensor resistance to temperature /
Outdoor Tem-
Service
perature Sensor
Soon
Problem
•
• If detected (reading in range), appropriate feature will be
OD Suction
Service • Reading below 0.25V or above 4.75V for 24hrs +/- 3hrs.
Temperature
Soon
Sensor Fault
The liquid line temperature sensor has malfunctioned.
• In normal operation after outdoor control recognizes
• Compare liquid line sensor resistance to temperature /
Service OD Liquid Line
Soon Sensor Faulty
• Replace sensor pack if necessary.
•
• If detected (reading in range), appropriate feature will
Page 80
Component or System Operational State and Troubleshooting
Tip
resistance charts in unit installation instructions. Replace
sensor pack or stand alone outdoor sensor.
control or equipment interface module will detect the
presence of the sensor(s).
set as 'installed' and shown in the 'About' screen.
System will continue to operate normally.
sensors, the alert code will be sent if a valid temperature
reading is lost.
resistance charts in unit installation instructions.
handler control will detect the presence of the sensor(s).
be set as 'installed' and shown in the thermostat 'About'
screen.
How to Clear Alert
Code
Automatically
-
uration, or sensing
normal values.
Resets after 3 con-
secutive readings
that are in range.
Automatically
-
uration, or sensing
normal values.
31-5000746 Rev. 0