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ROTARY SWITCHES SW01, 02, 03
Check at Main Power-on
After turning on the main power of the indoor units and outdoor unit in the refrigerant
line to conduct a test
operation, check the following items in each outdoor and indoor unit.
(After turning on the main power, be sure to check in order: indoor unit outdoor unit.)
Check On The Outdoor Unit
1.
Check that all the rotary switches, SW01, SW02, and SW03, on the interface PC
board of the header unit are set to "1."
2.
If another check code is displayed on the 7-segment display [B], remove the cause
of the problem referring to Section, "9 TROUBLESHOOTING".
3.
Check that "L08" is displayed on the 7-segment display [B] on the interface PC
board of the header unit. (L08: Indoor address not set up)
(If the address setup operation has already been completed during servicing, etc.,
the above check code is not displayed, and only "U1" is displayed on the 7-segment
display [A].)
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