INVENTOR u-match on/off Service Manual page 105

U-MATCH AIR CONDITIONERS
‹ Malfunction display: F5 Failure of Indoor Room Sensor at Wire Controller
Failure of Indoor Room Sensor at
Wire Controller
Check if the plug of the temperature sensor
is correctly connected with socket on the
main board
Remove the temperature sensor to check if
the resistance value is ok
replace the main board of the
outdoor unit
Yes
Yes
No
check the directions of the
plug and the socket
No
replace the temperature
sensor
MAINTENANCE
102