Troubleshooting
4.23 DC Voltage/Current Sensor Abnormality
H8
Error Code
Method of Error
DC voltage or DC current sensor abnormality is identified based on the compressor running
Detection
frequency and the input current.
Error Decision
If the error repeats, the system is shut down.
Conditions
Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Defective outdoor unit PCB
Causes
Troubleshooting
Replace the outdoor unit PCB (main PCB).
124
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
SiUS042113E
Part 6 Service Diagnosis