Sinclair ASC-18A - Page 118

DC INVERTER U-MATCH AIR CONDITION MAINTENANCE
112
Malfunction display: F1 Failure of Evaporator Temp. Sensor
Check if the plug of the temperature sensor is
correctly connected with socket on the mainboard
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
Failure of Evaporator
Temp. sensor
Malfunction display: F2 Failure of Condenser 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