15.3 Error Codes Table
Diagnosis | Abnormality / | Abnormality | Protection | Problem | Check location | |
display | Protection control | Judgment | Operation | |||
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H00 | No memory of failure | — | Normal operation | — | — | |
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| Indoor/outdoor |
| Indoor fan only |
| Indoor/outdoor wire terminal | |
| After operation for | operation can | Indoor/outdoor | |||
H11 | abnormal | start by entering | communication not | Indoor/outdoor PCB | ||
1 minute | ||||||
| communication | into force cooling | establish | Indoor/outdoor connection wire | ||
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| operation |
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| Total indoor capability | Indoor/outdoor connection wire | |
| Indoor unit capacity | 90s after power |
| more than maximum limit | ||
H12 |
| Indoor/outdoor PCB | ||||
— | or less than minimum limit, | |||||
unmatched | supply | Specification and combination | ||||
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| or number of indoor unit | ||||
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| table in catalogue | ||
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| less than two | ||
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| Indoor intake air |
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| Indoor intake air | Indoor intake air temperature | |
H14 | temperature sensor | Continuous for 5s | — | temperature sensor open | ||
sensor lead wire and connector | ||||||
| abnormality |
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| or short circuit | ||
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| Compressor |
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| Compressor temperature | Compressor temperature | |
H15 | temperature sensor | Continuous for 5s | — | |||
sensor open or short circuit | sensor lead wire and connector | |||||
| abnormality |
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| Outdoor current |
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| Current transformer faulty | Outdoor PCB faulty or | |
H16 | transformer (CT) | — | — | |||
or compressor faulty | compressor faulty | |||||
| abnormality |
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H19 | Indoor fan motor | Continuous | — | Indoor fan motor lock or | Fan motor lead wire and | |
connector | ||||||
mechanism lock | happen for 7 times | feedback abnormal | ||||
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| Fan motor lock or block | ||||
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| Indoor heat |
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| Indoor heat exchanger | Indoor heat exchanger | |
H23 | exchanger |
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Continuous for 5s | — | temperature sensor open | temperature sensor lead wire | |||
temperature sensor | ||||||
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| or short circuit | and connector | ||
| abnormality |
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| Indoor heat |
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| Indoor heat exchanger | Indoor heat exchanger | |
H24 | exchanger |
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Continuous for 5s | — | temperature sensor 2 open | temperature sensor 2 lead wire | |||
temperature sensor | ||||||
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| or short circuit | and connector | ||
| 2 abnormality |
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| Outdoor air |
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| Outdoor air temperature | Outdoor air temperature sensor | |
H27 | temperature sensor | Continuous for 5s | — | |||
sensor open or short circuit | lead wire and connector | |||||
| abnormality |
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| Outdoor heat |
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| Outdoor heat exchanger | Outdoor heat exchanger | |
H28 | exchanger |
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Continuous for 5s | — | temperature sensor 1 open | temperature sensor 1 lead wire | |||
temperature sensor | ||||||
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| or short circuit | and connector | ||
| 1 abnormality |
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| Outdoor discharge |
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| Outdoor discharge pipe | Outdoor discharge pipe | |
H30 | pipe temperature | Continuous for 5s | — | temperature sensor open | temperature sensor lead wire | |
| sensor abnormality |
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| or short circuit | and connector | |
| Outdoor heat |
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| Outdoor heat exchanger | Outdoor heat exchanger | |
H32 | exchanger |
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Continuous for 5s | — | temperature sensor 2 open | temperature sensor 2 lead wire | |||
temperature sensor | ||||||
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| or short circuit | and connector | ||
| 2 abnormality |
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| Indoor / outdoor |
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| Indoor and outdoor rated |
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H33 | misconnection | — | — | Indoor and outdoor units check | ||
voltage different | ||||||
| abnormality |
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| Outdoor gas pipe |
| Heating | Outdoor gas pipe | Outdoor gas pipe temperature | |
H36 | temperature sensor | Continuous for 5s | protection | temperature sensor open | ||
sensor lead wire and connector | ||||||
| abnormality |
| operation only | or short circuit | ||
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| Outdoor liquid pipe |
| Cooling | Outdoor liquid pipe | Outdoor liquid pipe temperature | |
H37 | temperature sensor | Continuous for 5s | protection | temperature sensor open | ||
sensor lead wire and connector | ||||||
| abnormality |
| operation only | or short circuit | ||
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| Indoor/Outdoor |
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| Check indoor unit and outdoor | |
H38 | mismatch (brand | — | — | Brand code not match | ||
unit | ||||||
| code) |
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| Check indoor/outdoor | |
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| Wrong wiring and | connection wire and connection | |
| Abnormal indoor | 3 times happen |
| connecting pipe, expansion | pipe | |
H39 | operating unit or | — | valve abnormality, indoor | Indoor heat exchanger sensor | ||
within 40 minutes | ||||||
| standby units |
| heat exchanger sensor | lead wire and connector | ||
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| open circuit | Expansion valve and lead wire | |
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| and connector | |
H59 | ECONAVI sensor | Continuous for 25s | — | ECONAVI sensor open or | ECONAVI sensor (defective or | |
disconnected) | ||||||
abnormality | short circuit | |||||
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| ECONAVI PCB | |||
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H64 | Outdoor high | Continuous for | — | High pressure sensor open | High pressure sensor | |
pressure sensor | 1 minute | circuit during compressor | Lead wire and connector | |||
| abnormality |
| stop | |||
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H97 | Outdoor fan motor | 2 times happen | — | Outdoor fan motor lock or | Outdoor fan motor lead wire | |
and connector | ||||||
mechanism lock | within 30 minutes | feedback abnormal | ||||
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| Fan motor lock or block | ||||
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