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Indoor / Outdoor abnormal communication | 
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Indoor unit capacity unmatched | 
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Indoor intake air temperature sensor abnormality | 
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Compressor temperature sensor abnormality | 
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Outdoor current transformer abnormality | 
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Outdoor suction temperature sensor abnormality | 
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Indoor fan motor mechanism lock | 
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Indoor float switch operation abnormality | 
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Indoor heat exchanger temperature sensor 1 abnormality | 
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Indoor heat exchanger temperature sensor 2 abnormality | 
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Indoor ion device abnormality | 
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Outdoor air temperature sensor abnormality | 
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Outdoor heat exchanger temperature sensor 1 abnormality | 
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Outdoor discharge pipe temperature sensor abnormality | 
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Abnormal swimming pool sensor | 
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Outdoor heat exchanger temperature sensor 2 abnormality | 
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Indoor / outdoor misconnection abnormality | 
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Outdoor heat sink temperature sensor abnormality | 
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Indoor / outdoor water adverse current abnormality | 
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Outdoor gas pipe temperature sensor abnormality | 
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Outdoor liquid pipe temperature sensor abnormality | 
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Indoor / outdoor mismatch (brand code) | 
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Abnormal indoor operating unit or standby units | 
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Abnormal wiring or piping connection | 
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Ventilation fan motor locked | 
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Ventilation fan motor locked | 
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Left-right limit switch fixing abnormality | 
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Indoor gas sensor abnormality | 
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Outdoor high pressure sensor abnormality | 
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DC cooling fan inside control board abnormality | 
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Abnormality tank temperature sensor | 
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Wireless LAN module write error | 
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Abnormal communication between indoor & wireless LAN module | 
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Outdoor fan motor mechanism lock | 
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Indoor high-pressure protection | 
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Indoor operating unit freeze protection | 
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4-way valve switching abnormality | 
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Total running current protection | 
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Indoor standby units freezing abnormality | 
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Dry circuit blocked abnormality | 
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Control box overheat protection | 
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Power factor correction (PFC) circuit protection / system and compressor microcomputer communication error | 
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Refrigerant cycle abnormality | 
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Compressor abnormal revolution | 
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Compressor discharge pressure protection | 
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Outdoor cooling high pressure protection | 
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Power transistor module overheating protection | 
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Compressor overheating protection | 
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Total running current protection | 
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Outdoor direct current (DC) peak detection |