(1)Self-diagnostics Lamps
INDOOR UNIT
(1) OPERATION lamp
(2) TIMER lamp
(3) QUIET lamp ION lamp
OPERATION button
REMOTE CONTROL receiver
Since the indications cover various units, the corresponding parts listed below may not be present in some models.
Indication on indoor unit | .... OFF |
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| .... Blinking | .... ON (Illuminated) | |||||||||||
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Quiet | 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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| (3)Indoor/outdoor circuit board failure |
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| S03 | Humidity sensor failure |
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| S04 | Compressor 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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| S05 | Outdoor heat exchanger sensor failure | ||||||||||||
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| (3)Outdoor circuit board failure |
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| S06 | Outdoor air temperature sensor failure |
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| S07 | failureOutdoor electrical current detection | Outdoor circuit board failure |
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| E01 | Indoor/outdoor communications failure | (1) | (2) AC power failure | (3) Blown fuse | (4) Power relay failure | ||||||||
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| (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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| • Power Tr (transistor) circuit failure | |||||||||||||
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| (7) | Compressor failure | (8) Outdoor circuit board failure |
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| E03 | Outdoor unit external ROM (OTP data) | (1) | External ROM data failure |
| (2) Outdoor circuit board failure | ||||||||
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| E04 | Peak current | (1) | Instantaneous power outage | (2) HIC or power transistor failure | |||||||||
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| (3) | Outdoor circuit board failure |
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| E05 | PAM circuit failure | (1) | Outdoor circuit board failure | (2) Outdoor power supply voltage failure | |||||||||
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| Active circuit failure | |||||||||||||
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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. | (4) Continuous overload operation | (5) Outdoor fan does not rotate (6) Outdoor circuit board failure | |||||||||||
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| E07 | Indoor fan operating failure | (1) | Fan motor failure | (2) Contact failure at connector |
| (3) Indoor circuit board failure | |||||||
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| E08 | (1) |
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| Indoor | (2) | Outdoor circuit board failure |
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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) | Fan motor failure | (2) Contact failure at connector |
| (3) Outdoor circuit board failure | |||||||
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| Outdoor system communications failure |
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| E12 | Outdoor | (1) | (2) Blown fuse |
| (3) Power relay failure | (4) Open phase | |||||||
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| OLR operation | (5) | Outdoor circuit board failure | (6) Compressor failure |
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| Outdoor power supply open phase |
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| Outdoor coil freezing |
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| E13 | (1) | Indoor fan system failure | (2) Shortage of refrigerant | (3) | |||||||||
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36
