Service diagnosis
7.4.14 Mismatching between indoor and outdoor units
Indoor display F43
Outdoor display: LED1 flash 46 times
7.4.15 Short of refrigerant
Indoor display F13
Outdoor display: LED1 flash 16 times
Domestic air conditioner
Method of
malfunction
detection
Malfunction
detection
conditions
Supposed
causes
Troubleshooting
'
Be sure to turn off power switch before connect or disconnect connector, or
else
parts damage may be caused
The malfunction is determined by the communication protocol
Indoor and outdoor units are mismatching.
■ Faulty module of indoor or outdoor unit;
Check the model of indoor or outdoor units or the type of PCB, and be sure they are right
Method of
malfunction
detection
Air conditioner cooling and heating effect will be very poor
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