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PAW-VP•LDHW - Technical Manual – 2020-07
Error Codes PACi & ECOi
10
Error group
Symptoms
Possible causes / Remedy
Wired remote
controller display
Activation of protec-
tive device
Faulty wiring connections of (ceiling) indoor unit panel
P09
Indoor unit fan motor trouble
Indoor unit fan motor locked
P01
Indoor unit fan motor layer short
Contact failure in thermostat protector circuit
Activation of float switch wiring
Faulty drain pump
P10
Drainage failure
Contact failure of float switch wiring
Faulty drain pump
Faulty drain pump
P11
Drain pump locked
Indoor unit fan motor trouble
Indoor unit fan motor locked
Faulty wiring connections of indoor unit fan motor
P12
Valve error
Valve error
Refrigerant circuit error
Wrong installation for refrigerant piping and wiring
P13
O
2
sensor error
O
2
sensor detected
P14
Discharge temperature protective alarm
Compressor discharge temperature trouble
P03
Activation of high pressure switch
Compressor discharge pressure trouble
P04
Power supply failure
Open phase detected
AC power supply trouble
P05
Insufficient gas
Insufficient gas level detected
P15
Compressor overcurrent trouble
P16
Fan motor locked/reversed airflow detected
Outdoor unit fan motor trouble
Outdoor unit fan trouble
P22
Inverter compressor trouble
P29
Group control trouble
Indoor unit in group control trouble
P31
Activation of current control compressor’s
protective device
Primary (input) overcurrent detected
H01
PAM trouble (overcurrent/overvoltage),
Activation of compressor’s protective device
PAM trouble
H02
Primary current control, Activation of com-
pressor’s protective device
Primary current CT sensor failure
H03
HIC trouble
HIC trouble
DC voltage not detected
H31
Thermistor fault
Indoor unit thermistor open/short
Indoor heat exchanger temperature sensor (E1) trouble
F01
Indoor heat exchanger temperature sensor (E2) trouble
F02
Indoor air temperature sensor (TA) trouble
F10
Outdoor unit thermistor
open/short
Compressor discharge temperature sensor (TD) trouble
F04
Outdoor heat exchanger temperature sensor (C1) trouble
F06
Outdoor heat exchanger temperature sensor (C2) trouble
F07
Outdoor air temperature sensor (TO) trouble
F08
Compressor suction temperature sensor (TS) trouble
F12
Nonvolatile memory failure
Indoor unit EEPROM trouble
F29
Outdoor unit EEPROM trouble
F31
i
Note
For full Trouble Diagnosis details please refer to the outdoor unit Technical Data & Service
Manual.
Alarm codes for indoor/outdoor units PACi R410A (continued)