110
Troubleshooting
Cause of
Stoppage
(Alarm Code or
Stoppage Code)
Contents
Indication of Alarm Code History
Time *Alarm
Alarm Code
Alarm Code
or Stoppage
Code
O.U.
Unit No.
Comp.
No.
Fan No.
48
Activation of inverter overcurrent protection
device
Accumulated Time AC. ○ ○ iTC
d1-17 Accumulated Time d1. ○ ○ iTC
51
Abnormality of inverter current sensor
Accumulated Time AC. ○ ○ iTC
d1-17 Accumulated Time d1. ○ ○ iTC
53
Inverter error signal detection
Accumulated Time AC. ○ ○ iTC
d1-17 Accumulated Time d1. ○ ○ iTC
54
Abnormality of inverter n temperature
Accumulated Time AC. ○ ○ iTC
d1-17 Accumulated Time d1. ○ ○ iTC
55
Inverter failure
Accumulated Time AC. ○ ○ iTC
d1-18 Accumulated Time d1. ○ ○ iTC
57 Activation of fan controller protection device Accumulated Time AC. ○ ○ FTC
5A Abnormality of Fan Controller Fin Temperature Accumulated Time AC. ○ ○ FTC
5b Activation of Overcurrent Protection Accumulated Time AC. ○ ○ FTC
5c Abnormality of Fan Controller Sensor Accumulated Time AC. ○ ○ FTC
EE Compressor protection alarm Accumulated Time AC. --
A6
Abnormality of PCB cooling module
temperature
Accumulated Time AC. --
d1-42 Accumulated Time d1. --
b5
Incorrect setting of indoor unit connection
number
Accumulated Time AC. --
d1-05 Instantaneous power failure Accumulated Time di. --
d1-18 Abnormality of inverter and other Accumulated Time di. iTC
d1-26 Abnormality of high pressure decrease Accumulated Time di. --
d1-32
Retry stoppage by indoor unit auto address
setting
Accumulated Time di. --
Control
Information
Micro-computer reset by abnormality of
inverter transmission
Accumulated Time Ci. 1
Micro-computer reset by abnormality of fan
controller transmission
Accumulated Time Ci. 2
Micro-computer reset by abnormality of indoor
unit transmission
Accumulated Time Ci. 3
Micro-computer reset by abnormality
transmitting between outdoor unit and outdoor
unit
Accumulated Time Ci. 4
Micro-computer reset for abnormality of
control state
Accumulated Time Ci. 6
*(Details of Alarm) iTC: Inverter Stoppage Code
AC.: Alarm FTC: Fan Controller Stoppage Code
d1.: Retry
Ci.: Control Information
(2) Deletion of Alarm Code History
Press PSW1 and PSW3 for 5 seconds to clear the alarm code history while the history data is displayed. (All history can
be deleted.)
PSW4(▼) PSW2(▲)
PSW4(▼) PSW2(▲)
PSW2(▲)
PSW4(▼) PSW2(▲)
PSW4(▼)
PSW4(▼)
PSW2(▲)
PSW3( )
▲
PSW5( )
▲
In order to delete all the history,
press PSW1 and PSW3 ( )
for 5 seconds
while history is displayed.
▲