15.3.Error Codes Table
Diagnosis | Abnormality / | Abnormality | Protection | Problem | Check location | |
display | Protection control | Judgement | operation | |||
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H00 | No memory of failure | — | Normal operation | — | — | |
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H11 | Indoor/outdoor | After operation for | Indoor fan only | Indoor/outdoor | • Indoor/outdoor wire terminal | |
| abnormal | 1 minute | operation can | communication not establish | • Indoor/outdoor PCB | |
| communication |
| start by entering |
| • Indoor/outdoor connection wire | |
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| into force cooling |
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| operation |
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H14 | Indoor intake air | Continuous for 5s | — | Indoor intake air temperature | • Indoor intake air temperature | |
| temperature sensor |
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| sensor open or short circuit | sensor lead wire and connector | |
| abnormality |
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H15 | Compressor | Continuous for 5s | — | Compressor temperature | • Compressor temperature sensor | |
| temperature sensor |
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| sensor open or short circuit | lead wire and connector | |
| abnormality |
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H16 | Outdoor current | — | — | Current transformer faulty or | • Outdoor PCB faulty or | |
| transformer (CT) |
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| compressor faulty | compressor faulty | |
| abnormality |
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H19 | Indoor fan motor | Continuous | — | Indoor fan motor lock or | • Fan motor lead wire and | |
| merchanism lock | happen for 7 times |
| feedback abnormal | connector | |
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| • Fan motor lock or block | |
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H23 | Indoor heat exchanger | Continuous for 5s | — | Indoor heat exchanger | • Indoor heat exchanger | |
| temperature sensor |
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| temperature sensor open or | temperature sensor lead wire and | |
| abnormality |
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| short circuit | connector | |
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H27 | Outdoor air temperature | Continuous for 5s | — | Outdoor air temperature | • Outdoor air temperature sensor | |
| sensor abnormality |
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| sensor open or short circuit | lead wire and connector | |
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H28 | Outdoor heat exchanger | Continuous for 5s | — | Outdoor heat exchanger | • Outdoor heat exchanger | |
| temperature sensor 1 |
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| temperature sensor 1 open | temperature sensor 1 lead wire | |
| abnormality |
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| or short circuit | and connector | |
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H30 | Outdoor discharge pipe | Continuous for 5s | — | Outdoor discharge pipe | • Outdoor discharge pipe | |
| temperature sensor |
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| temperature sensor open or | temperature sensor lead wire and | |
| abnormality |
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| short circuit | connector | |
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H33 | Indoor / outdoor | — | — | Indoor and outdoor rated | • Indoor and outdoor units check | |
| misconnection |
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| voltage different |
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| abnormality |
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H38 | Indoor/Outdoor | — | — | Brand code not match | • Check indoor unit and outdoor | |
| mismatch (brand code) |
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| unit. | |
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H97 | Outdoor fan motor | 2 times happen | — | Outdoor fan motor lock or | • Outdoor fan motor lead wire and | |
| mechanism lock | within 30 minutes |
| feedback abnormal | connector | |
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| • Fan motor lock or block | |
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H98 | Indoor high pressure | — | — | Indoor high pressure | • Check indoor heat exchanger | |
| protection |
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| protection (Heating) | • Air filter dirty | |
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| • Air circulation short circuit | |
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H99 | Indoor operating unit | — | — | Indoor freeze protection | • Check indoor heat exchanger | |
| freeze protection |
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| (Cooling) | • Air filter dirty | |
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| • Air circulation short circuit | |
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F11 | 4 times happen | — | • | |||
| abnormality | within 30 minutes |
| abnormal | • Lead wire and connector. | |
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F90 | Power factor correction | 4 times happen | — | Power factor correction | • Outdoor PCB faulty | |
| (PFC) circuit protection | within 10 minutes |
| circuit abnormal |
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F91 | Refrigeration cycle | 2 times happen | — | Refrigeration cycle abnormal | • Insufficient refrigerant or valve | |
| abnormality | within 20 minutes |
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| close | |
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F93 | Compressor abnormal | 4 times happen | — | Compressor abnormal | • Power transistor module faulty or | |
| revolution | within 20 minutes |
| revolution | compressor lock | |
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F95 | Outdoor cooling high | 4 times happen | — | Cooling high pressure | • Check refrigeration system | |
| pressure protection | within 20 minutes |
| protection | • Outdoor air circuit | |
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F96 | Power transistor module | 4 times happen | — | Power transistor module | • PCB faulty | |
| overheating protection | within 30 minutes |
| overheat | • Outdoor air circuit (fan motor) | |
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