SiUS12-928_B
5. Troubleshooting for Indoor Unit
5.1
Indoor Unit PCB Abnormality
A1
Remote
Controller
Display
Method of
The system checks if the circuit works properly within the microcomputer of the indoor unit.
Malfunction
Detection
Malfunction
The system cannot set the internal settings.
Decision
Conditions
Wrong models interconnected
Supposed
Defective indoor unit PCB
Causes
Disconnection of connector
Reduction of power supply voltage
Service Diagnosis
Troubleshooting for Indoor Unit
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