Breakdown Self Diagnosis Function - Panasonic CS-VE9NKE Service Manual

15.2 Breakdown Self Diagnosis Function

15.2.1 Self Diagnosis Function (Three Digits Alphanumeric Code)

Once abnormality has occurred during operation, the unit will stop its operation and Timer LED blinks. In case of
abnormality which does not affect the refrigeration cycle, the operation will not stop but the Timer LED will blinks.

Although Timer LED goes off when power supply is turned off, if the unit is operated under breakdown condition,
the LED will light up again.

In operation after breakdown repair, the Timer LED will no more blink. The last error code (abnormality will be
stored in IC memory).
15.2.2 To Make a Diagnosis

Timer LED start to blink and the unit automatically stops the operation.

Press the INFO button on the remote controller.

Error code will be displayed on the remote controller display for 4 seconds then it will return to the original display.

If no information can be received from indoor unit, "RETRY" will be display for 4 seconds on the remote controller
display.
15.2.3 To Display Memorized Error Code (Protective Operation)

Turn power on (in standby condition).

Short the CHECK terminal, the latest error code is displayed on the remote control display.
15.2.4 To Clear Memorized Error Code after Repair (Protective Operation)

Turn power on (in standby condition).

Press the Auto button for 5 seconds (A beep receiving sound) on the main unit to operate the unit at Forced
Cooling Operation modes.

Short CHECK terminal to transmit signal to main unit. A beep sound is heard from main unit and the data is
cleared.
15.2.5 Temporary Operation (Depending on Breakdown Status)

Press the AUTO button (A beep receiving sound) on the main unit to operate the unit. (Remote control will
become possible.)

The unit can temporarily be used until repair.
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