Troubleshooting
Wired Remote Controller
If the error occurs, 
and the error code are displayed on the wired remote controller. The error code blinks for 5 seconds and it disappears. If you would like to see the error code after disappearing it, press the Test button.
Meaning of Error Code
The error code is composed of
Error Code | Meaning | Checking area |
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∗ 1 | Indoor unit thermistor | ◆ Indoor unit thermistor sensor |
| sensor error | ◆ PCB of the indoor unit |
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∗ 5 | Indoor unit pipe thermistor | ◆ Indoor unit pipe thermistor sensor |
| sensor error | ◆ PCB of the indoor unit |
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∗ 6 | Outdoor unit thermistor | ◆ Outdoor unit thermistor sensor |
| sensor error | ◆ PCB of the outdoor unit |
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∗ 9 | Float switch error | ◆ Drain pump, Float switch |
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| ◆ Drain system |
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| ◆ DIP switch(SW2) of the indoor unit |
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| (The No.2 and No.4 switches must be |
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| at “ON” position.) |
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∗ A | A Indoor and Outdoor | ◆ Communication cables of indoor and |
| communication error | outdoor units |
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| ◆ PCB of indoor and outdoor units |
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∗ C | Wired remote controller | ◆ Wired remote controller cables, |
| communication error | Wired remote controller |
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| ◆ Main/Sub PCB of the indoor unit |
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∗ D | Outdoor pipe thermistor | ◆ Outdoor pipe thermistor sensor |
| sensor error | ◆ PCB of the outdoor unit |
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Example “39” means the address “3” indoor unit has a trouble with a float switch.
