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DC Inverter Floor Ceiling Type Air Conditioner Installation and Operation Manual
24
The LED Indicator Display on the Main Board of Outdoor Unit (09K/12K).
This table is applicable to the electric control box of the 09K and 12K C Series DC inverter air conditioners.
Some of the items are not malfunction; they mean the normal running status.
Running Status
Outdoor unit
Yellow Lamp
Outdoor unit
Red Lamp
Outdoor unit
Green Lamp
wired
controller
Display
Compressor started
Flash once
Defrosting
Flash twice
Displayed
Anti-freezing protection
Flash 3 times
E2
IPM protection
Flash 4 times
E5
Over-current protection
Flash 5 times
E5
Heat exchanger overload protection
Flash 6 times
/
Discharge protection
Flash 7 times
E4
Compressor overload protection
Flash 8 times
E5
Power protection
Flash 9 times
E5
Module overheating protection
Flash 10times
E5
EEPROM reading error
Flash 11 times
E5
Low voltage protection
Flash 12times
E5
High voltage protection
Flash 13times
E5
PFC over-current protection
Flash 14times
E5
Unmatched indoor and outdoor units
Flash 16times
/
Limited frequency(current)
Flash once
/
Limited frequency (discharge)
Flash twice
/
Limited frequency (overload)
Flash 3 times
/
Reduced frequency (anti-freezing)
Flash 4 times
/
Outdoor ambient temperature sensor error
Flash 6 times
F3
Outdoor pipe temperature sensor error
Flash 5 times
F2
Outdoor discharge temperature sensor error
Flash 7 times
F4
Up to the startup temperature
Flash 8 times
/
Limited frequency(module temperature)
Flash 11times
/
Limited frequency (power)
Flash 13times
/
Communication normal
Flash
continuously
/
Communication error
Black out
E6
Indoor ambient temperature sensor error
F0
Indoor pipe temperature sensor error
F1