YMGI WMMS-09C-V2A(57)2, Installer'S Instruction & User'S Manual

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51
PROTECTION AND ERROR CODES
Self-Diagnostic Functions
Self-check information Self-check code of running lights Digital display self-check code
Defrost Indication
Blink 1 time / 1 sec dF or Heating icon flashes
Anti-cold wind
Blink 1 time / 1 sec Fan motor icon does not light up
Room temperature sensor fault
Blink 1 time / 8 sec E2
Coil temperature sensor
Blink 2 times / 8 sec E3
External feedback sensor fault
Blink 7 times / 8 sec E7
Outdoor tube temperature sensor fault
Blink 4 times / 8 sec E1
EEPROM Communication failure
Blink 6 times / 8 sec E6
Outdoor ambient temperature exceeds
units operating range
Blink 1 time / 1 sec FF
Note:
Above self-diagnostic information is commonly applicable in most air conditioner models, but some units do
have different codes. Please refer to the User’s Manual or contact YMGI for more information
Error Codes Display for Indoor Unit
Malfunction
Indoor Unit Display Status
Code
LED display
Running lamp flashing
frequency
Timing lamp flashing
frequency
Communication fault between the
indoor and outdoor units
F1 1 Lit
Indoor ambient temperature sensor fault F2 2 Lit
Indoor coil temperature sensor fault
(including inlet, middle of pipe and
outlet)
F3 3 Lit
Indoor fan fault F4 4 Lit
Outdoor module fault F5 5 Lit
Outdoor ambient temperature sensor
fault
F6 6 Lit
Outdoor coil temperature sensor fault F7 7 Lit
Compressor suction temperature
sensor fault
F8 8 Lit
Compressor discharge temperature
sensor fault
F9 9 Lit
Current inductor or voltage fault FA 10 Lit
Abnormal compressor drive fault FC 11 Lit
Power supply incorrect phase or phase
sequence fault
FD 12 Lit
Gas return sensor fault (includes A, B,
C, D)
FE 13 Lit
Low refrigerant FF 14 Lit
Note:
The above error code information is applicable to several models of air conditioners, but because of product changes or
improvements, they can change. Please refer to
the User’s Manual for more information, or have a technician contact YMGI.