P5417089
39
8.4 Alarm Code
Code
Category
Content of Abnormality
Code
Category
Content of Abnormality
01
Indoor Unit
Activation of Protection Device
35
System
Incorrect Setting of Indoor Unit No.
02
Outdoor Unit
Activation of Protection Device
(High Pressure Cut)
36
Incorrect Indoor Unit Combination
03
Communication
Operational Irregularities between
Indoor and Outdoor
38
Problem with Protective Pickup Circuit
in Outdoor Unit
04
Problem between Inverter PCB and
Outdoor PCB
39
Compressor
Problem with Running Current at
Constant Speed Compressor
05
Supply Phase Problem of Power Source Phases
41
Pressure
Overload Cooling
06
Voltage
Abnormal Voltage Drop in
Outdoor Unit
42
Overload Heating
07
Cycle
Decrease in Superheated Discharge
Gas
43
Protection
Device
Activation of Pressure Ratio Decrease
Protection Device
08
Increase in Discharge Gas
Temperature
44
Activation of Low Pressure Decrease
Protection Device
09
Outdoor Unit
Activation of Protection Device for
Outdoor Fan
45
Activation of Low Pressure Increase
Protection Device
11
Sensor on
Indoor Unit
Inlet Air Thermistor Failure
46
Activation of High Pressure Increase
Protection Device
12
Outlet Air Thermistor Failure
47
Activation of High Pressure Decrease
Protection Device
13
Freeze Protection Thermistor Failure
48
Activation of Overcurrent Protection
Device
14
Gas Piping Thermistor Failure
51
Inverter
Problem with Inverter Current Sensor
19
Fan Motor
Activation of Protection Device for
Indoor Fan
52
Activation of Inverter Overcurrent
Protection
20
Sensor on
Outdoor Unit
Compressor Thermistor Failure
53
Activation of Transistor Module
Protection
21
High Pressure Sensor Failure
54
Abnormality of Inverter Fin
Temperature
22
Outdoor Air Thermistor Failure
56
Outdoor Fan
Abnormality of Detection for Fan
Motor Position
23
Discharge Gas Thermistor Failure
57
Activation of Fan Controller Protection
24
Evaporating Thermistor Failure
58
Abnormality of Fan Controller
29
Low Pressure Sensor Failure
b0
System
Incorrect Setting of Unit Capacity
31
System
Incorrect Capacity Setting of
Outdoor Unit and Indoor Unit
b1
Incorrect Setting of Unit and
Refrigerant Cycle No.
32
Incorrect Setting of Other Indoor Unit
Number
EE
Compressor
Compressor Protection Alarm