When error occurs, take necessary measures by referring to the following table. For more information on necessary measures for errors, refer to the service manual.
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| LED Display | Error | Measures for the installer to take | ||
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Display |
| LED 1 | LED 2 |
| LED 3 | ||
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| Communication error | • Check the connection wire between the |
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| between indoor and | indoor and outdoor units (whether the |
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| outdoor units | power cable or communication cable is |
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| crossed or not). |
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| Error on indoor | • Check the connection of the connector. |
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| temperature sensor |
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| Error on indoor heat | • Check the connection of the connector. |
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| exchanger |
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| Error on indoor fan | • Check the connection of the connector. |
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| motor | • Remove foreign substance. (Check for the |
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| cause that restrains motor.) |
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display and |
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| EEPROM/Option | • |
all LEDs blink. |
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| error |
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| Refrigerant flow | • Check if the stop valve is completely open. |
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| blocking error | • Check if there is any blockage in the |
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| refrigerant pipe which connects the indoor |
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| and outdoor units. |
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| • Check for refrigerant leak. |
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| Lack of refrigerant | • Check if a sufficient amount of refrigerant |
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| (for inverter models | is additionally charged for the pipe |
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| ❈ This LED pattern | only) | longer than specified in piping codes and | |||
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| standards. | ||||
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| appears when an |
| • Check for refrigerant leak between valve | |||
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| error occurs on the |
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| and pipe connection. | ||||
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| outdoor unit. |
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❈ : Off, : Blinking, : On
Installation
English 45