Service manual

69
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Malfunction display: E9 Full Water Protection
Full Water Protection
Y
N
Check if water overflow
Check if the water drainage pump
works
N
Y
Y
Y
Check if the water drainage pipe is
jammed or if water flows smoothly
N
Adjust the water
drainage pipe
Clear the water drainage pipe
Check if the voltage of liquid level
switch end is ok
Replace the main board
of the indoor uint
N
Y
Check the liquid level
switch
Check if the voltage of water
drainage pump end is ok
Check the cables of
water drainge pump
Replace the main board of
the indoor uint
N
Y
◆
Malfunction display: F2 Failure of Evaporator Temp. Sensor
Check if the plug of the temperature sensor is
correctly connected with socket on the mainboard
Failure of condenser Temp.
sensor
N
Remove the sensor to check if the resistance
value is ok
N
Y
Y
Y
Replace mainboard of the
indoor uint
Check the direction of
the plug and socket
Replace temperature sensor
67