5-455-2. Contents of LED Display on the Outdoor Unit Control PCBLED 1 LED 2 RemarksPower ON sequence1. No communication from indoor units in system2. Communication received from 1 or more indoor units in system3. Regular communication OK (Capacity and unit quantity match)If it is not possible to advance to 3,repeats 1 2.At 3, changes to normal control.Normal operation Displayed during automatic addresssetting 1 and initial communication.After these are completed, alarm F31 isdisplayed.EEPROM error (F31)Pre-trip (insufficient gas)Pre-trip (P20)Pre-trip (other)(0.25/0.75)(0.25/0.75)P03Alarm Alternate blinking during alarmsLED 1 blinks M times, and 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 alarmN = Alarm No.* Refer to “Examples of alarm display” below.Insufficient gas indicatorRefrigerant recovery modeAutomatic address settingAutomatic address setting in progressAutomatic address setting alarm (E15)Automatic address setting alarm (E20)Automatic address setting alarm (Other than E15 and E20)(0.25/0.75)(0.75/0.25)(0.25/0.75)(0.75/0.25)Blinking alternatelyBlinking simultaneouslyBlinking simultaneouslyBlinking simultaneously:ON:Blinking (0.25/0.75) indicates that the lamp illuminates for 0.25 seconds, and then is OFF for 0.75 seconds.Unless otherwise indicated, the blinking is (0.5/0.5).:OFFExamples of alarm display (other than E15, E16, and E20)Alarm / Display LED 1 Alternately LED 2P02 ( Blinks 2 times ) (Blinks 2 times)P03 ( " ) (Blinks 3 times)P04 ( " ) (Blinks 4 times)P05 ( " ) (Blinks 5 times)P31 ( " ) (Blinks 31 times)H01 (Blinks 3 times) (Blinks 1 times)H02 ( " ) (Blinks 2 times)H03 ( " ) (Blinks 3 times)• •E04 (Blinks 4 times) (Blinks 4 times)• •F07 (Blinks 5 times) (Blinks 7 times)• •L13 (Blinks 6 times) (Blinks 13 times)• •Note:This table shows examples of alarms.Other type of alarms may also be displayed.
