16
4
Freon-lacking
protection
F0
The compr-
essor stops;
the fan mo-
tor keeps on
running.
● Refrigerant is leaking.
● System is blocked
5
High-tempe-
rature over
oad protect-
ion
H3
● Ambient operation condition is
bad.
● The evaporator and condenser
are blocked with filth.
● The system is abnormal.
No.
Malfunction
Name
Display
Code
Unit's
Condition
Possible Causes
Display
Window
Compressor
and fan
motor stop.
This button
is invalid.
2
Tube
Temperature
Sensor
Malfunction
F2
● Temperature sensor on the
evaporator is loosen or is poorly
connected with the terminal of
display board.
● Some element of display board
may have been put upside down
and cause short circuit.
● Temperature sensor on the eva-
porator is damaged(Please refer
to Checking Table for Temperature
Sensor Resistance).
● Display board is damaged.
3
Humidity
Sensor
Malfunction
L1
●
Humidity sensor is short-circuited.
● Humidity sensor is damaged.
● Display board is damaged.
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