* Self-diagnosis CHECK LIST
To do list
LED
Item
Trouble contents
Diagnostic method
F
R
FZ-Sensor Error
Display error : separation of
sensor housing part, contact
error, disconnection, short
circuit.
Display error of detecting
temperature of sensor : more
than 149
℉
(+65
℃
) or less than
-58
℉
(-50
℃
)
When measuring the voltage between
the Main PCB CN30-"4"
↔
CN76-"1", it
should read between 4.5V~1.0V.
FF-Sensor Error
When measuring the voltage between
the Main PCB CN30-"5"
↔
CN76-"1", it
should read between 4.5V~1.0V.
FZ-DEF-Sensor
Error
The voltage of MAIN PCB CN30-
“5”
↔
N76-
”1”: shall be between 4.5V~1.0V
FF-DEF-Sensor
Error
When measuring the voltage between
the Main PCB CN30-"8"
↔
CN76-"1", it
should read between 4.5V~1.0V.
Ambient-Sensor
Error
The voltage of MAIN PCB CN78-
“8”
↔
CN78-
”12”: shall be between 4.5V~1.0V
Flex room-Sensor
Error
The voltage of MAIN PCB CN78-
“9”
↔
CN76-
”1”: shall be between 4.5V~1.0V
Humidity-Sensor
Error
Separation of sensor housing
part, contact error,
disconnection, short circuit
When measuring the voltage between
the Main PCB CN30-"3"
↔
CN76-"1", it
should read between 4.5V~1.0V.
5. Check the installation status
5-1. Function for failure diagnosis
132