Error code Error contents
01
13
26
27
Indoor signal error
00 Wired remote controller abnormal
02 Indoor room temperature sensor error
04
Indoorheatexchangertemperaturesensor
(middle) error
28
Indoorheatexchangertemperaturesensor(inlet)
error
09 Float switch operated
0c Outdoor discharge pipe temperature sensor error
06
Outdoorheatexchangertemperaturesensor
(outlet) error
0A Outdoor temperature sensor error
0E Heat sink thermistor (Inverter) error
15 Compressor temperature sensor error
1d 2-way valve temperature sensor error
1E 3-way valve temperature sensor error
29
Outdoorheatexchangertemperaturesensor
(middle) error
2d Heat sink thermistor (P.F.C) error
20 Indoor manual auto switch abnormal
2A Power supply frequency detection error
17 IPM protection
18 CT error
1A Compressor location error
1b Outdoor fan error
1F Connected indoor unit abnormal
1c Outdoor unit computer communication error
2E Inverter error
12 Indoor fan abnormal
0F Discharge temperature error
24 Excessivehighpressureprotectiononcooling
2c 4-way valve abnormal
16
Pressure switch abnormal, Pressure sensor abnormal
2b Compressor temperature error
2F Low pressure error
19 Activelterabnormal
25 PFC circuit error
30 Refrigerant circuit address set-up error
31 Master unit, Slave unit set-up error
32 Connected the indoor number set-up error
33 P.F.C. printed circuit board error
If “C0” appears in the unit number display, there is a remote
controller error.
Unit number Error code Content
C0 1d
Incompatible indoor unit is
connected
C0 1c
Indoorunit↔remotecontrol-
ler communication error
13. SPECIAL INSTALLATION METHODS
CAUTION
When setting DIP switches, do not touch any other parts •
on the circuit board directly with your bare hands.
Be sure to turn off the main power.•
[Group control system]
A number of indoor units can be operated at the same time
using a single remote controller.
Wiring method (indoor unit to remote controller) (1)