8 Troubleshooting
DX-Interface EXV-(2.0-10.0)E2 or KPI-(E/X)4E alarm codes
SMGB0137 rev.0 - 05/2021
286
8.5 DX-Interface EXV-(2.0-10.0)E2 or KPI-(E/X)4E alarm codes
Code
number
DX-
KIT2 KPI-4E
KPI-
Active
Category
Type of abnormality
Main cause
01
o
-
o
Indoor
Activation of protection device
Float switch activation
(high water level in drain hose or abnormality in
drain pipe, float switch or drain pan).
03
o
-
o
Transmission
Transmission error
Outdoor fuse meltdown, Indoor/outdoor
connection wiring (breaking, wiring error, etc.)
11
o
o
o
Indoor
Air inlet thermistor (RA for KPI)
Loose, disconnected, broken or short-circuited
connector
12
o
o
o
Indoor
Air outlet thermistor (OA for KPI) Loose, disconnected, broken or short-circuited
connector
13
o
-
o
Indoor
Liquid pipe thermistor
Loose, disconnected, broken or short-circuited
connector
14
o
-
o
Indoor
Gas pipe thermistor
Loose, disconnected, broken or short-circuited
connector
15
-
-
-
Indoor
Fresh outdoor air thermistor
(Econofresh)
Loose, disconnected, broken or short-circuited
connector
16
-
-
o
Indoor
Air inlet DX Coil thermistor
(Tincoil)
Loose, disconnected, broken or short-circuited
connector
17
-
-
o
Indoor
Air outlet DX Coil thermistor
(Toutcoil)
Loose, disconnected, broken or short-circuited
connector
18
(o)
o
o
Indoor
Indoor RA fan protection device
activation for KP
Fan motor overheating, locking.
19
o
o
o
Indoor
Indoor OA fan protection device
activation for KPI or DX-KIT2
Fan
Fan motor overheating, locking.
31
o
-
o
System
Incorrect setting of outdoor and
indoor units
Outdoor/Indoor Unit capacity setting error,
Indoor total capacity excessively large/small
35
o
-
o
System
Indoor unit number setting error Indoor units with the same number exist in a
refrigerant piping system
70
o
o
o
Indoor
Abnormal transmission between
PCB1 and PCB2
Loose, disconnected
71
o
o
o
Indoor
Incorrect PCBs setting
Wrong setting are performed in PCBs
73
o
o
o
Indoor
Incorrect 4-20mA, 0-10V, 0-5V,
0-10k
Ω
setting
Loose, disconnected, broken or short-circuited
connector
EE
o
-
o
Compressor
Compressor protection alarm
(cannot be reset from the remote
controller)
This alarm code is displayed when the
following alarms are triggered three times
within six hours: 02,07,08,39,43 to 45, 47
74
-
-
-
Indoor
Remote sensor thermistor
(Trem)
Loose, disconnected, broken or short-circuited
connector
These alarm codes are displayed in the 7 segments on PCB2 corresponding to the
DX-Interface EXV-(2.0-10.0)E2 or
KPI-(E/X)4E.
