58
PMEN0654 rev.0 - 12/2023
14
ON-SCREEN DISPLAY DURING ABNORMAL OPERATION
TROUBLESHOOTING
14.1 On-screen display during abnormal operaon
PC-ARFG-E example
When more than one
indoor unit is connected,
press " " or " " to show
other indoor units.
Indoor unit number
(Refrigerant system-address number)
Installed unit number
Abnormal operaon can be produced due to the following reasons:
◆ Malfuncon
If the RUN LED ickers for 2 seconds, there is a failure in the transmission between the indoor unit
and the remote control switch.
Possible causes are:
• Broken remote cable.
• Contact failure in the remote control cable.
• Defecve IC or defecve microcomputer.
In any case, ask your retailer for service.
If the RUN LED ickers 5 mes (5 seconds) with the unit number and the alarm code displayed,
make a note of the alarm code (refer to the table below) and ask your retailer for service.
The RUN (red) indicator ashes
The ALARM indicator appears on the liquid crystal display.
The screen also displays the following items:
✓ A: indoor unit address (Abnormal Indoor Unit Number).
✓ B: Refrigerant cycle number (Abnormal Refrigerant Cycle Number).
✓ C: Alarm code.
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