48
Installation and Maintenance
Service Manual
9. Maintenance
No.
Malfunction
Name
Error
Code
A/C Status Possible Causes
16
Outdoor
discharge
temperature
sensor is open/
short-circuited
F5
The unit will stop operation as it reaches
the temperature point. During cooling
and drying operation, the compressor
stops operation while IDU fan motor
operates; During heating operation, the
heating fan motor operates according to
the conditions of blowing residual heat.
1. The wiring terminal between outdoor discharge temperature
sensor and maiboard is loosened or poorly contacted;
2. There’s short circuit due to trip-over of the parts on maiboard;
3. Outdoor discharge temperature sensor is damaged (Please
check it by referring to the resistance table for temperature
sensor);
4. Mainboard is broken.
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