35
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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