
 Malfunction
Failure description  | Code on wired controller  | 
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Room temp. sensor abnormal  | E1  | 
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Indoor coil temp. sensor abnormal  | E2  | 
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Outdoor temp. sensor abnormal  | E3  | 
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Outdoor coil temp. sensor abnorma  | E4  | 
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E5  | |
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High / Low pressure abnormal  | E6  | 
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Communication malfunction between indoor PCB and panel  | E8  | 
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Communication malfunction between indoor PCB and outdoor PCB  | E9  | 
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The float switch malfunction  | E0  | 
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