Dc Voltage/Current Sensor Abnormality - Daikin FTKM-U Series Service Manual

SiMX042215E

4.20 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).
Part 6 Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Troubleshooting
83