3
- 4
2-WAY MULTISET VRF SYSTEM
Trouble Diagnosis
3
3 -
4
(
: ON
: Blinking
: OFF)
LED (RED)
Display meaning
1
2
After the power is turned ON (and automatic address setting is not in progress), no communica-
tion with the indoor units in that system is possible.
After power is turned ON (and automatic address setting is not in progress), 1 or more indoor units are
confirmed in that system; however, the number of indoor units does not match the number that was set.
Automatic address setting was completed successfully. (After the power is turned ON, and auto-
matic address setting is not in progress, the number of detected indoor units connected to that
system matches the number that was set, and regular communications are occurring.)
(Both OFF)
Automatic address setting is in progress.
At time of automatic address setting, the number of indoor units did not match the number that
was set.
Alarm display
(Blinking alternately)
LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.
M = 2: P alarm 3: H alarm 4: E alarm 5: F alarm 6: L alarm
N = Alarm No.
Example: LED 1 blinks 2 times, then LED 2 blinks 17 times. The cycle then repeats.
Alarm is “P17.”
(Both ON)
(OFF)
(ON)
(Both OFF)
(Blinking alternately)
(Both blinking)
2. Outdoor Unit Control PCB LED Display
