Service manual

70
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Malfunction display: F3 Failure of Outdoor Ambient Sensor
Check if the plug of the temperature sensor is
correctly connected with socket on the mainboard
Failure of outdoor Ambient
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
◆
Malfunction display: F5 Failure of Exhaust Temp. Sensor
Check if the plug of the temperature sensor is
correctly connected with socket on the mainboard
Failure of Exhaust 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
68