Panasonic S-22KA1E5 Service Manual page 149

A/C No. 01
Indoor unit
printed circuit
board DIP switch
(SW2)
Unnecessary
operation
A/C No. 09
Indoor unit printed
circuit board DIP
switch (SW2)
4-ON
11.12.5 SELF-DIAGNOSIS FUNCTION
•
The lit LED 1 (Green) on the printed circuit board for the outdoor unit indicates that the printed circuit board for
COM is operating properly. When it is unlit or blinks irregularly, check the power connections and then turn the
power on again.
IF "CHECK" IS BLINKING ON THE TIMER
•
If the "CHECK" display on the wired controller is blinking, the details of the problems are displayed on the timer
display screen each time the CHECK switch is pressed.
•
Further details of the problem can be displayed by pressing the SET switch while the general problem details are
being displayed.
Example of current problem display
•
Press the CHECK switch
Problem display
REVIEWING THE PROBLEM HISTORY
•
If the "CHECK" display on the wired controller is not blinking, press the CHECK switch continuously for 5
seconds or more to display the problem details for the last problem or the problem before that.
•
You can then switch between the display for the previous problem and the problem before that by pressing the
UP / DOWN (TIMER) switches.
•
Press the CHECK switch once more to return to the normal display.
Example of previous problem display
•
Press the CHECK switch for 5 seconds or
more
Problem display
02 03 04
1-ON 2-ON 1,2-ON
10 11 12
1,4-ON 2,4-ON 1,2,4-ON
05 06 07
3-ON 1,3-ON 2,3-ON
13 14 15
3,4-ON 1,3,4-ON 2,3,4-ON
•
Further details of the problem can be
displayed by pressing the SET switch.
Problem details
•
Further details of the problem can be
displayed by pressing the SET switch.
Problem details
149
08
1,2,3-ON
16
1,2,3,4-ON