York HIDS006B21S Service Manual page 55

Alarm
Code
l The RUN indicator (red) flashes.
l The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code
1
the model name
number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
Note 1: Except for some models.
This alarm code is displayed five minutes after power-on of the outdoor unit, if the indoor unit number set by
DSW6 and RSW1 duplicates in the same refrigerant group.
SM-18001-rev.1
and the number of connected indoor units are displayed on the LCD. The indoor unit
Incorrect Indoor Unit No. Setting
TROUBLESHOOTING
1
,
3-33