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TheAChub
System Abnormality, Refrigerant System Address Undefined
Error Code UH
Applicable Models
All indoor models REYQ-T
Method of Error Detection
Detect an indoor unit with no auto address setting. Error Decision Conditions
The error decision is made as soon as the abnormality aforementioned is detected. Supposed Causes
Improper connection of transmission wiring between indoor-outdoor units and outdoor-outdoor units Defective indoor unit PCB
Defective outdoor unit PCB (A1P)
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