DC Inverter Duct 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
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