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71
FlexFit Pro
Large Cassette Error Code Logic
Cassette panel IR
receiver digital display
(ashing)
Corresponds to
outdoor error
code
Description of malfunction Remarks
01 / Malfunction of indoor unit ambient temperature sensor
Malfunction of indoor
unit.
Refer to indoor unit
trouble shooting
list to get more
details
02 / Malfunction of indoor unit piping temperature sensor
04 / PCB EEPROM failure
07 /
Abnormal communication between indoor and outdoor
units
08 /
Abnormal communication between wired controller(or
I.R .RECEIVER) and indoor unit
0C / Malfunction of drain system
（
oat switch open circuit
）
0D / Indoor unit Zero cross signal error
0E / Indoor unit DC fan motor abnormal
15 1 Outdoor main control PCB EEPROM malfunction
Malfunction of
outdoor unit.
Refer to outdoor unit
troubleshooting
list for more details
16 2 PIM(power intelligent module)hardware overcurrent
17 3 Compressor over current during deceleration
18 4
Communication abnormal between control
board and compressor driver module
19 5 Compressor overcurrent detected by control board
1A 6 DC voltage or AC voltage high
1B 7 Compressor current sampling circuit fault
1C 8 Discharge temperature too high
1D 9 DC fan motor fault
1E 10 Outdoor defrosting temp. sensor Te abnormal
1F 11 Suction temp. sensor Ts abnormal
20 12 Outdoor ambient temp. sensor Ta abnormal
21 13 Discharging temp. sensor Td abnormal
22 14 PFC circuit loop high voltage
23 15
Communication abnormal between indoor unit and
outdoor unit
24 16 Restriction in discharge piping
25 17 4-way valve abnormal
26 18 Compressor motor desynchronizing
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