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Diagnostic Function
Functions of each sensor for the A/C and the air vent damp-
er can be diagnosed using this function.
Press both “ ” and “ ” marks on temperature control switch
(9) for longer than 3 seconds at the same time with the fan
turned OFF (no air flow) to display the operating conditions
of the sensors and dampers as shown below.
Displays on LC D and Trouble Mode
Displays on LCD Trouble Mode
E— No fault
E11 Broken re-circulation air sensor
E12 Short re-circuited circulation air sensor
E13 Broken fresh air sensor
E14 Short circuited fresh air sensor
E15 Broken coolant temperature sensor
E16 Short circuited coolant temperature sensor
E18 Short circuited insolation sensor
E21 Broken air vent sensor
E22 Short circuited air vent sensor
E43 Abnormal air vent damper
E44 Abnormal air mix damper
E45 Abnormal both re-circulation and fresh air
damper
E51 Abnormal refrigerant pressure
NOTE: In case more than one fault is detected, press either “
” or “ ” mark on the temperature control switch button
to change the fault code displayed on the LCD in order.
Press fan OFF-switch (6) to complete the diagnosing
function.
If any trouble has been found through operating the diagnos
-
tic function, contact your nearest Hitachi dealer for repair.
M178-00-017
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