Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 248

(2) LED Indicator Messages on Outdoor Control PCB 4. Service procedures LED 1 LED 2 Remarks Power ON sequence 1. No communication from indoor units in system 2. Communication received from 1 or more indoor units in system 3. 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 EEPROM error (F31) Pre-trip (insufficient gas) Pre-trip (P20) Pre-trip (other) (0.25/0.75) (0.75/0.25) Displayed during automatic address setting 1 and initial communication. After these are completed, alarm F31 is displayed. P03 Alarm Alternate blinking during alarms 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. * Refer to "(3) Examples of alarm display" below. Insufficient gas indicator Refrigerant recovery mode Automatic address setting Automatic address setting in progress Blinking alternately Automatic address setting alarm (E15) Automatic address setting alarm (E20) (0.25/0.75) (0.75/0.25) (0.25/0.75) Blinking simultaneously (0.75/0.25) Blinking simultaneously Automatic address setting alarm (Other than E15 and E20) Blinking 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). : OFF (3) Examples of alarm display (other than E15, E16, and E20) 4 Alarm / Display LED 1 → Alternately → LED 2 P03 ( Blinks 2 times ) (Blinks 3 times) P04 (" ) (Blinks 4 times) P05 (" ) (Blinks 5 times) P31 (" ) (Blinks 31 times) H01 (Blinks 3 times) (Blinks 1 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 example alarms. Other alarms • • may also be displayed. 4-4