Troubleshooting
| Name of running status | Yellow light | Red light | Green light | Indoor unit display |
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1 | Compressor start | Blink once |
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2 | Defrosting | Blink twice |
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| H1 |
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3 | Blink three times |
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| E2 | |
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4 | IPM protection | Blink four times |
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| H5 |
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5 | Overcurrent protection | Blink five times |
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| E5 |
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6 | Overload protection | Blink six times |
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| H4 |
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7 | Air exhaust protection | Blink seven times |
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| E4 |
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8 | Overload protection | Blink eight times |
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| H3 |
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9 | Limited frequency (current) |
| Blink once |
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10 | Limited frequency (Air exhaust) |
| Blink twice |
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11 | Limited frequency (overload) |
| Blink three times |
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12 | Limited frequency |
| Blink four times |
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13 | Outdoor unit ambient sensor malfunction |
| Blink five times |
| F3 |
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14 | Outdoor unit tube temp. sensor malfunction |
| Blink six times |
| F4 |
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15 | Outdoor air exhaust sensor malfunction |
| Blink seven times |
| F5 |
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16 | Achieve the temperature of unitstartsup |
| Blink eight times |
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17 | Communication is normal |
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| Blink continuously |
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18 | Communication malfunction |
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| OFF | E6 |
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19 | Overload sensor malfunction |
| Blink nine times |
| H3 |
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20 | Low voltage protection | Blink twelve times |
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| PL |
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21 | High voltage protection | Blink thirteen times |
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| PH |
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22 | Indoor ambient sensor malfunction |
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| F1 |
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23 | Indoor tube temperature sensormalfunction |
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| F2 |
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24 | Normal cooling or norminal heating |
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| P1 |
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25 | Max. cooling or max. heating |
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| P2 |
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26 | Interim cooling or interim heating |
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| P3 |
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27 | Min. cooling or Min. heating |
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| P0 |
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YELLOW-LED4
GREEN-LED2
RED-LED3
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