28
Installation and Maintenance
Service Manual
8.2 Troubleshooting  
(1) Temperature sensor malfunction (F1/F2 )
Start
Insert the temperature 
sensor tightly
Malfunction is
 
eliminated.
Make the parts upright
yes
Malfunction is 
eliminated.
Replace the controller with 
one of the same model
End
no
no
yes
yes
Malfunction is 
removed.
no
yes
yes
      Is the wiring 
 terminal between temperature 
sensor and the controller loosened or 
    poorly contacted?
 Is there short circuit due to tri-pover 
   of the pa rts?
        Is the temperature 
sensor  normal according to the 
            Resistance Table?
Replace it with a 
temperature sensor 
of the same model
yes
no
no
no