Panasonic U-8ME1E81, Service Manual

Page: 54 / 105

3 -4
2WAY SYSTEM
Trouble Diagnosis
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
2. Outdoor Unit Control Panel LED Display
( : ON : Blinking : OFF)
LED (RED)
Display meaning
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), one 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.)
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
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.”
(Blinking alternately)
(Both ON)
(OFF)
(ON)
(Both OFF)
(Blinking alternately)
(Both blinking)
2
1
SM830205-04_2WAY_VRF_Euro.indb 4 15/01/20 15:29:43