A/A DC INVERTER U-MATCH AIR CONDITIONERS MAINTENANCE
109
◆Malfunction display: E9 Full Water Protection
◆Malfunction display: F0 Failure of Indoor Room Sensor at Return air inlet
Check if the plug of the temperature sensor is
correctly connected with socket on the mainboard
Failure of indoor room
sensor at air intake
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
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