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Test Operation
Turn on AC power supply. Using the RC unit turn the AC on and check
its functionality in different modes. It should be noted that the AC
efficiency test should be performed after at least 15 to 20 minutes
after the first startup.
TABLE OF FAULT CODES
E1
Indoor air temperature sensor failure
E2
Outdoor unit heat exchanger temperature sensor failure
E3
Indoor unit heat exchanger temperature sensor failure
E4
Indoor unit fan motor failure
E5
Malfunction in the communication line between the outdoor and
indoor units
F0
Outdoor unit fan motor failure
F1
IPM module ( Intelligent Power Module) error
F2
PFC module error
F3
Compressor malfunction
F4
Compressor discharge line temperature sensor failure
F5
Compressor overload safety tripped
F6
Outdoor air temperature sensor failure
F7
Over- or undervoltage protection tripped
F8
Outdoor unit module communication line failure
F9
EEPROM (Electrically Erasable Programmable Read Only Memory)
module failure
FA
Suction line temperature sensor failure (4-way valve malfunction)
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