PMGB0406B rev.1
73
22.3 Alarm Code
Ɣ
When the RUN indicator
À
ashes every four seconds, there is a communication failure between the indoor
unit and the wired controller (loose connector, disconnected or incorrect wiring, or a severed connection).
Ɣ
The indication of the alarm code “EE” means serious abnormality to burn out the compressor.
Refer to the "Installation and Maintenance Manual" for the indoor/outdoor unit connections.
Alarm (Troubleshooting) Code Table
Code
No.
Category
Nature of Problem
Likely Cause
01
Indoor Unit
Activation of a protection device
(Float switch)
Activation of the
À
oat switch; (High water level
present in the drain pan.) A problem exists in the
piping.
02
Outdoor Unit
Activation of protection device;
(Except for Alarm Code: 41, 42)
High Pressure Cut; (R410A: 601 psi (4.15MPa)),
fan motor lockup during the outdoor unit cooling
operation.
03 Communication Communication failure between
indoor and outdoor units
Incorrect wiring, loose terminals, disconnected
wiring or a blown fuse.
04-
09
Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for outdoor units.)
11
Sensor on
Indoor Unit
Inlet Air Thermistor failure
Loosely connected, disconnected, or a severed
connection.
12
Outlet Air Thermistor failure
13
Freeze Protection Thermistor
failure
14
Gas Piping Thermistor failure
20-
29
Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for outdoor units.)
31
System
Incorrect capacity setting for
indoor and outdoor units
Incorrect capacity code setting for combination,
excessive or insuf
¿
cient total indoor unit capacity
code.
32
Incorrect setting of other indoor
unit number
Problem with a different Indoor Unit in the same
refrigerant cycle; (Failure at the power supply,
defective PCB).
35
Incorrect setting of indoor
Indoor unit number duplicated in same refrigerant
group.
36
Incorrect indoor unit combination Indoor unit is designed for other refrigerant; (R22 or
R407C).
38-
59
Problem with the outdoor unit; (Refer to the "Installation and Maintenance Manual" for the outdoor unit.)
b0
System
Incorrect setting for unit capacity Incorrect setting for unit capacity
b1
Incorrect setting of unit and
refrigerant cycle number
Unit number or refrigerant cycle > 64
b5
Incorrect setting of indoor unit
number for H-LINK type
Interconnected indoor units are not supporting
H-LINK II > 17
EE
Compressor
Compressor protection alarm
This alarm code displays when the alarms such as
damage to the compressor occur three times within
a six hour period.
(Ins)DX-Kit̲4e-rev1.indd 73
(Ins)DX-Kit̲4e-rev1.indd 73
2016/11/25 15:33:07
2016/11/25 15:33:07