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DUAL, TRIPLE, POKER DC Inverter : 3. Outdoor Unitis & Troubleshooting
Multi Liberty
DC Inverter
3.2.2 ERROR/PROTECTION CODES DISPLAYED ON OUTDOOR UNITS
• Error Codes shown by 2-digit LED Display
(Multi LIberty Outdoor Unit’s PCB):
• Protection Codes shown on 2-digit LED Display
(Multi Liberty Outdoor Unit’s PCB):
E0
E 1
E2
E3
E4
E5
E6
E7
P1
p2
p4
Error Code
Outline of malfunction
Protection Code
Outline of protection function
Error of parameters in EEPROM (Indoor Units).
Malfunction of temperature sensor, Gas side, on Indoor Unit “A”.
Malfunction of temperature sensor, Gas side, on Indoor Unit “B”.
Malfunction of temperature sensor, Gas side, on Indoor Unit “C”.
Malfunction of temperature sensor, Gas side, on Indoor Unit “D”.
Malfunction of temperature sensor T3 (outdoor air) on Outdoor Unit.
Error of compressor voltage.
Communication error on Outdoor Unit’s PCB.
Intervention of a protection function on Inverter Module.
p5
Protection for outdoor low temperature (in Heating mode).
High pressure protection
[Models HCKU 816 X4, HCKU 1066 X4 only].
P0
1) Protection for compressor discharge overtemperature.
[All Models of Outdoor Unit]
2) Intervention of thermal protection for compressor overtemperature.
[Excluded Models HCKU 816 X4, HCKU 1066 X4].
Low pressure protection
[Models HCKU 816 X4, HCKU 1066 X4 only].
p3
Protection for compressor overcurrent.
P6
Protection for heat exchanger overtemperature on Outdoor Unit
(in Cooling mode).