Haier GE NS23AM Service Manual page 33

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
120
N/A N/A
125
132
180
181
182
183
31-5000746 Rev. 0
Priority Actual Displayed Component or System Operational State
Condition Alert Text and Troubleshooting Tip
There is a delay in the system component responding to the system.
Typically this alert code does not cause any operational issues and will
clear on its own.
• This alert code is usually caused by a delay in the outdoor unit responding
• Leaking voltage from strands within the bundle.
Service Unresponsive
Soon Device
There is a hardware problem on a system component control. There is a
Service Control Hardware
control hardware problem.
Urgent Problem
Replace the control if the problem prevents operation and is persistent.
System component control software is corrupted.
Service Device Control
• Recycle power.
Urgent Software Fault
• If failure re-occurs, replace the system component control.
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 component control recognizes sensors, the alert
code will be sent if valid temperature reading is lost.
• Compare outdoor sensor resistance to temperature / resistance charts in
Outdoor
Service
Temperature
Soon
Sensor Problem
•
• If detected (reading in range), appropriate feature will be set as 'installed'
OD Suction
Service • Suction Pressure Transducer reading above 4.75V or below 0.25V for
Pressure
Soon
Transducer Fault
OD Suction
Service • Reading below 0.25V or above 4.75V for 24hrs +/- 3hrs.
Temperature
Soon
Sensor Fault
• Under 0.25V and above 4.75V readings for 24 hours +/-3hrs or more on
OD Liquid
Service
Pressure Sensor
Soon
• Continue normal operation, see sections related to low pressure switch
Fault
Table 11. Alert Codes and Troubleshooting
to the thermostat.
> Land only the R wire on the R terminal to load the bundle with 24VAC.
Typically only the R wire needs to be landed to identify if voltage
is leaking.
If voltage is present checking the other wires is informational only
but not needed.
If voltage is not present checking the other wires one at a time
would be needed.
> Check each loose wire in AC mode to C on circuit board.
Good voltage is .03 -.3VAC leaking voltage is not the issue.
Acceptable can be up to .7VAC with moderate success.
Some units have worked with up to 1.2VAC with occasional
success.
Voltage over 1.2VAC needs to be addressed.
unit installation instructions. Replace sensor pack or stand alone outdoor
sensor.
equipment interface module will detect the presence of the sensor(s).
and shown in the 'About' screen.
24hrs +/- 3hrs. Run on staged operation.
continue to operate normally.
the sensor will cause this error.
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How to Clear
Alert Code
Automatically
clears after an
unresponsive system
component (device)
responds to any
inquiry.
Automatically clears
the issue no longer
exists.
Manual system
power reset is
required to recover
from this alert code.
Automatically clears
or sensing normal
values.
Resets after 3
consecutive readings
that are in range.
Resets after 3
System will
consecutive readings
that are in range.
Resets after 3
consecutive readings
that are in range.