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PAW-VP•LDHW - Technical Manual – 2020-07
Error Codes PACi & ECOi
10
10 Error Codes PACi & ECOi
10.1 Alarm codes for indoor/outdoor units PACi R32
Error group
Symptoms
Possible causes / Remedy
Wired remote
controller display
Serial communica-
tion errors Missetting
Failure in receiving serial signal from remote
controller’s indoor unit
Faulty remote controller
Disconnection/Contact failure of remote controller wiring
CHK(check) pins on the indoor unit control PCB are short circuited
E01
Settings of system address, indoor unit ad-
dress and group control are not made
In the case of non-group control:
●
Power supply OFF of outdoor unit
●
Disconnection / Contact failure of inter-unit wiring
In the case of group control:
Automatic address operation was not carried out.
Setting failure of nonvolatile memory IC
Faulty setting of EEPROM on indoor unit
Failure in indoor unit serial signal from
remote controller
Faulty remote controller
E02
Wrong wiring of remote controller
Error in indoor unit receiving signal from remote controller (central)
E03
Failure in indoor unit receiving serial signal
from outdoor unit
Disconnection / Contact failure of inter-unit wiring
E04
●
Faulty indoor unit control PCB
●
Faulty outdoor unit control PCB
●
Communication circuit fuse on indoor unit control PCB opened
●
Fuse on outdoor unit control PCB opened Since failure of an out-
door fan motor is considered as a cause, both outdoor unit control
PCB and outdoor unit fan motor are exchanged simultaneously.
Failure in outdoor unit
receiving serial signal from
indoor unit
●
Disconnection / Contact failure of inter-unit wiring
E06
●
Disconnection of inter-unit wiring
●
Communication circuit fuse on indoor unit control PCB opened
Indoor unit control PCB address setting error
Duplication of indoor unit address
Duplication of indoor unit address setting
E08
Duplication of main remote
controller setting
Error because of more than one remote controller setting to main
E09
Improper setting
Automatic address setting start is prohibited
E12
Duplication of main unit in group control
E14
Communication error between
main and sub indoor units
●
Disconnection of wiring between main unit and additional units
●
Contact failure of wiring
●
Faulty indoor unit control PCB (Main or Addition)
E18
Automatic address settings
failure
Automatic Address Alarm
The total capacity of indoor units is too low
E15
Automatic Address Alarm
The total capacity of indoor units is too high
E16
Automatic Address Alarm
No indoor unit connected
E20
Outdoor unit Communication error
E24
Outdoor unit Communication error
E29
Indoor & outdoor unit type miss-matched
Setting error, indoor/outdoor unit type/model miss-matched
L02
Duplication of group control’s main indoor unit Duplication of main indoor unit address in group control
L03
Group control wiring is connected to indi-
vidual control indoor unit
Group control wiring is connected to individual control indoor unit
L07
Indoor unit address is not set
L08
Serial communica-
tion errors Missetting
Indoor unit capacity is not set
L09
Duplication of outdoor unit address
L04
Outdoor unit capacity is not set or setting error
L10
Indoor unit type setting error Type of indoor/outdoor units is different
L13
4-way valve locked trouble / operation failure
L18
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