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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
Thermistor fault
Outdoor thermistor is either open or
damaged
Compressor 1 discharge temperature sensor has failure. (DISCH1)
F04
Compressor 2 discharge temperature sensor has failure. (DISCH2)
F05
Outdoor unit heat exchanger 1 gas temperature sensor has failure.
(EXG1)
F06
Outdoor unit heat exchanger 1 liquid temperature sensor has failure.
(EXL1)
F07
Outdoor temperature sensor has failure. (TO)
F08
Outdoor thermistor is either open or
damaged.
Compressor inlet temperature sensor has failure. (SCT)
F12
Subcooling heat exchanger temperature sensor has failure. (SCG)
F14
High pressure sensor has failure. (HPS)
F16
Low pressure sensor has failure. (LPS)
F17
Outdoor unit heat exchanger 2 gas temperature sensor has failure.
(EXG2)
F23
Outdoor unit heat exchanger 2 liquid temperature sensor has failure.
(EXL2)
F24
Activation of protec-
tive device
Protective device in indoor unit is activated.
Thermal protector for Indoor unit fan motor is activated.
<<P01>>
Connection to the panel of indoor unit is not good.
<<P09>>
Float switch of drain pan safety is activated.
<<P10>>
Cooling water freeze (Air-to-Water)
<<P11>>
Indoor unit fan inverter protection control is activated.
<<P12>>
O
2
sensor has activated.
P14
Protective device in outdoor unit is activated. Compressor 1 discharge temperature is too high.
P03
High pressure switch is activated.
P04
Compressor 1 AC power supply has abnormal.
P05
Compressor 2 AC power supply has abnormal.
P15
Compressor 1 secondary current is overcurrent.
P16
Compressor 2 discharge temperature is too high.
P17
Compressor 2 start failure. Compressor 2 is missing phase.
P19
Outdoor unit fan motor has failure.
P22
WHE water pump interlock OFF alarm
WHE pump interlock error (EXCT error)
P23
Compressor 2 secondary current is overcurrent.
P26
Compressor 1 start failure. Compressor 1 is missing phase.
P29
Indoor unit communication error of group
control wiring.
Other indoor unit in group control has an alarm.
<P31>
EEPROM on indoor unit PCB failure.
F29
EEPROM on outdoor unit PCB has failure.
F31
Protective device
for compressor is
activated
Protective device for compressor No. 1 is
activated.
Compressor 1 primary current is overcurrent.
H01
Compressor 1 current sensor is disconnected or shorted.
H03
Compressor 1 discharge temperature sensor is disconnected,
shorted or misplaced. (DISCH1)
H05
Protective device for compressor No. 2 is
activated.
Compressor 2 primary current is overcurrent.
H11
Compressor 2 current sensor is disconnected or shorted.
H13
Compressor 2 discharge temperature sensor is disconnected,
shorted or misplaced. (DISCH2)
H15
Low pressure sensor value is too low.
H06
Oil sensor fault.
(Disconnection, etc.)
Compressor 1 oil temperature sensor has failure. (OIL1)
H08
Compressor 2 oil temperature sensor has failure. (OIL2)
H27
Abnormal device function
Compressor 2 HIC has failure. HIC is overcurrent or overheat.
VDC is undervoltage or overvoltage.
H21
Compressor 1 HIC has failure. HIC is overcurrent or overheat.
VDC is undervoltage or overvoltage.
H31
<< >> Alarm indication: Does not affect the operation of other indoor units.
< > Alarm indication: In some cases may affect the operation of other indoor units.
Alarm codes for indoor/outdoor units ECOi MF3 (continued)