(1) Self-diagnostics Lamps
(3) | (2) | (1) |
ION | TIMER | OPERATION |
lamp | lamp | lamp |
If there is no trouble, the lamps neither blink nor illuminate. |
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Since the indications cover various units, the corresponding parts listed below may not be | present in some models. | |||||||||||||
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Indication on indoor unit | .... OFF |
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Ion | Timer | Operation | Code | Diagnostics item |
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( 3 ) | ( 2 ) | ( 1 ) |
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| S01 | Room temperature sensor failure |
| (1) Sensor open circuit or short circuit |
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| (2) Contact failure at connector or open circuit at terminal crimping location | ||||||||
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| S02 | Indoor heat exchanger sensor failure | ||||||||||
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| detection only for the humidity sensor) |
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| S03 | Humidity sensor failure |
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| S04 | Compressor temperature sensor failure |
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| SH(Suction) sensor failure |
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| S05 | Outdoor heat exchanger sensor failure |
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| S06 | Outdoor air temperature sensor failure |
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| S07 | Electrical current detection failure |
| (1) Operating frequency is 45 Hz or higher and less than 0.5 A of current is flowing. | ||||||||
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| E01 | Indoor/outdoor communications failure |
| (1) Miswiring (2) AC power failure | (3) Blown fuse | (4) Power relay failure | ||||||
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| (serial communications) |
| (5) Indoor or outdoor circuit board failure |
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| E02 | HIC circuit failure |
| (1) HIC or power Tr failure (2) Outdoor fan does not turn. | (3) Instantaneous power outage | |||||||
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| (4) Service valve not opened. | (5) Outdoor fan blocked. (6) Continuous overload operation | |||||||||
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| (7) Compressor failure (8) Outdoor circuit board failure |
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| E03 | Outdoor unit external ROM failure |
| (1)External ROM data failure | (2) External ROM installation failure | |||||||
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| E04 | Peak current |
| (1)Operating current is 20 A or higher. |
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| E05 | PAM circuit failure |
| (1)PAM circuit abnormal voltage | (2) Protection for current | |||||||
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| E06 | Compressor discharge overheat |
| (1)Electric expansion valve failure (2) Capillaries choked | (3) Shortage of refrigerant | |||||||
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| prevention activated. |
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| E07 | Indoor fan operating failure |
| (1) Locked fan motor (2) Contact failure at connector |
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| Indoor |
| (3) Noise, instantaneous power blackout, or power waveform error due to lightning or other factor | |||||||||
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| E08 |
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| (2) Indoor heat exchanger temperature sensor disconnected. | ||||||||||
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| E09 |
| (1) Service valve not opened. | (2) Shortage of refrigerant |
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| E10 | DC compressor drive circuit failure |
| (1) Open phase | (2) Outdoor circuit board failure |
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| E11 | Outdoor fan operating failure |
| (1) Contact failure at connector | (2) Outdoor circuit board failure | |||||||
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| E12 | Outdoor system communications failure |
| (1) Miswiring in | (2) Outdoor circuit board failure | |||||||
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| E13 |
| (1) Indoor fan system failure | (2) Shortage of refrigerant | (3) | |||||||
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NOTE | If the operation lamp (orange) continues to blink immediately after when the power source has been supplied | |||||||||||||
| to the air conditioner, there might be trouble with the external ROM (E14) in the indoor unit. | |||||||||||||
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