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CONSOLE TECHNICAL OVERVIEW
I-10
ENGLISH
Error Codes
The error codes that are displayed on the indoor units may vary from the outdoor unit codes. The information communicated by
the error code will be the SAME for both indoor and outdoor units even though the numbers may dier.
Indoor
Display
Outdoor
LED
Diagnosis
F12 1 Outdoor EEPROM failure
F1 2 IPM overcurrent or short circuit
F22 / Outdoor alternating current, over current protection
F3 4 Communication failure between the IPM and outdoor PCB
F20* 5 Module operated overload (compressor overload protection)
F19* 6 Module low or high voltage
F27 / Compressor current sampling circuit fault
F4 8 Overheat protection for discharge temperature
F8* 9 Malfunction of the DC fan motor
F21 10 Malfunction of defrost temperature sensor
F7 11 Suction temperature sensor failure
F6 12 Ambient temperature sensor failure
F25 13 Discharge temperature sensor failure
F30* / High outdoor suction temperature
E7 15 Communication failure between the indoor & outdoor unit
F13* 16 Lack of refrigerant or discharging
F14* 17 4-way valve switching failure
F11 18 Loss of synchronism detection
F28 / Position detection circuit fault of compressor
F15* / Terminal block temp too high
F5* 23 Module thermal overload
F2* 24 Compressor start failure, over-current
F23 25 Phase current protection (IPM)
F9 26 MCU reset
F24 27 Module current detect circuit malfunction
F10 28 Liquid pipe sensor failure: Circuit A
F16 29 Liquid pipe sensor failure: Circuit B
F17 30 Liquid pipe sensor failure: Circuit C
F18 31 Liquid pipe sensor failure: Circuit D
F29 32 Gas pipe sensor failure: Circuit A
F30 33 Gas pipe sensor failure: Circuit B
F31 34 Gas pipe sensor failure: Circuit C
F32 35 Gas pipe sensor failure: Circuit D
F26 36 Gas pipe sensor failure: Circuit E
F34 / Outdoor pipe temperature protection in cooling mode
F35 38 Malfunction of module temperature sensor momentary power failure detection
F36 39 Malfunction of condensing temperature sensor
F33 40 Liquid pipe sensor failure: Circuit E
F38 41 Toci temperature sensor failure
F39 42 High Pressure switch open
F40 43 Low Pressure switch open
F41 44 System high pressure protection: Overcharged, high condensing temperature or malfunction of fan motor
F42 45 System low pressure protection: Undercharged, low defrosting temperature, or malfunction of fan motor
F43 / Incorrect match between indoor & outdoor
E1 / Indoor ambient temperature sensor failure
E2 / Indoor coil temperature sensor failure
E4 / Indoor PCB EEPROM failure
E8 / Communication fault between the controller and Indoor unit
E12 / Drain system malfunction
E13 / C1 / Zero cross signal detected wrong
E14 / Indoor fan motor malfunction
* Hidden indoor error code. LED1 will ash outdoors, but no error will appear on indoor unit display. To view error code on indoor display, press and hold the
Emergency button for 15 seconds.
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