10 Troubleshooting
Initial troubleshooting
SMGB0136 rev.0 - 07/2021
220
Alarm code history record
Alarm Code or
Cause Code of I.D.
Stoppage
Contents
Cause Code of Inverter/Fan
Stoppage
ITC FTC
02 Activation of protection device (High Pressure Cut) - -
04 Abnormality communication between inverter PCB and outdoor unit PCB - -
05 Abnormality of power supply phase - -
06
Activation of inverter voltage increase/decrease protection 5, 6 -
d1-18
07
Activation of discharge gas superheat decrease protection - -
d1-16
08
Activation of discharge gas temperature increase protection - -
d1-15
20 Abnormality of thermistor for discharge gas temp. (Td) - -
21 Abnormality of pressure sensor (Pd) - -
22 Abnormality of thermistor for outdoor air temperature (Ta) - -
24 Abnormality of thermistor for outdoor unit heat exchanger liquid pipe (Te) - -
31 Incorrect capacity setting of indoor unit and outdoor unit - -
38 Abnormality of picking up circuit for protection in outdoor unit - -
45
Activation of high pressure increase protection - -
d1-13
47
Activation of low pressure decrease protection - -
d1-15
48
Activation of overcurrent protection 2, 4 -
d1-17
51
Abnormality of current sensor for inverter 8 -
d1-17
53
Activation of inverter PCB protection device 1, 12, 21 -
d1-17
54
Activationofinverterntemperatureincreaseprotection 3 -
d1-17
55
Inverter failure
9, 10, 11, 13,
14, 15, 16, 23
-
d1-18
57 Abnormality of Outdoor Fan Motor - 1, 12, 24
5b Activation of overcurrent protection for outdoor fan - 2
5C Abnormality of outdoor fan controller sensor - 8
EE Compressor protection alarm - -
d1-05 Instantaneous power failure at the outdoor unit - -
d1-26 Retry due to high pressure decrease - -
A1 Abnormality of Active Filter - -
d1-35 4-Way valve switching failure - -
? NOTE
All History will be erased by pressing PSW1 for 5 seconds when Abnormal Data Record is displayed.
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