Contents
1. Safety Caution .......................................................................................................2
2. General Troubleshooting ......................................................................................3
3. Complain Record Form ..........................................................................................4
4. Information Inquiry ...............................................................................................6
5. Error Diagnosis and Troubleshooting Without Error Code .................................7
5.1 Remote maintenance .....................................................................................7
5.2 Field maintenance .........................................................................................8
6. Quick Maintenance by Error Code ......................................................................13
7. Troubleshooting by Error Code ...........................................................................14
7.1 E1/EH 00 (Indoor EEPROM parameter error diagnosis and solution) ..............14
7.2 E2/EH 02 (Zero-crossing detection error diagnosis and solution) ...................15
7.3 E3/EH 03/E8/ EC 07 (Fan speed is operating outside of the normal range
diagnosis and solution) ................................................................................16
7.4 E5/EH 60/E6/EH 61/E7/EC 52 (Open circuit or short circuit of temperature sensor
diagnosis and solution) ................................................................................19
7.5 EC/EL 0C (Refrigerant leakage detection diagnosis and solution) ..................20
7.6 E9/EL 01 (Indoor / outdoor unit communication error diagnosis and solution) 21
7.7 P6/PC 03 (High pressure protection) .............................................................23
8. Check Procedures .................................................................................................24
Troubleshooting
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