Panasonic CU-J50DBE8 Service Manual page 101

12.4.4. Self-diagnosis function
The wired remote control display and the self-diagnosis LEDs (green) on the outdoor unit printed circuit board indicate where the
abnormality has occurred.
Recalling the error display.
The air conditioner No."01" appears during normal installation and use.
When using group control, a different number may appear.
The air conditioner No. can be displayed by pressing the air conditioner No. button.
(= same as Temp. up and down button)
When an abnormality occurs at this unit, "check" flashes in the display.
• Press the check button while the display is flashing.
The timer display will change and an error code from F15 to F44 will appear in place of time.
(the temperature setting display will also change to show the air conditioner. No.)
• Press the timer set button while the error is displayed.
The F15-44 display will change to the detail display.
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