Nobu NBL4-18IDU32 Service Manual page 54

(2) Malfunction of Temperature Sensor (F3/F4/F5)
Main check point:
Whether the temperature sensor is damaged?
Whether the terminal of temperature sensor is loose or not connected?
Whether the main board is damaged?
Malfunction diagnosis process:
Check the connection between
temperature sensor and wiring
terminal is loose or in poor connection
Check whether the temperature sensor
is normal according to the Resistance
Value Table for Temperature Sensor?
68
50
Start the troubleshooting for
temperature sensor
No
Yes
Replace the controller
End
Yes
Insert the temperature
sensor well
No
Is malfunction eliminated?
Replace the
No
temperature sensor
No
Is malfunction eliminated?
Service Manual
Service Manual
Yes
Yes
Installation and Maintenance
Installation and Maintenance