Multi Plus ODU Main Board Troubleshooting

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Fault Code Fault Description Possible Reason for Fault Potential Fixes
1 Outdoor Ambient Temperature Sensor Fault
  • The outdoor ambient temperature sensor connection is loose
  • The outdoor ambient temperature sensor has failed
  • The sampling circuit has failed
  • Reconnect the outdoor ambient temperature sensor
  • Replace the outdoor ambient temperature sensor
  • Replace the outdoor board
2 Outdoor Coil Temperature Sensor Fault
  • The outdoor coil temperature sensor connection is loose
  • The outdoor coil temperature sensor has failed
  • The sampling circuit has failed
  • Reconnect the outdoor coil temperature sensor
  • Replace the outdoor coil temperature sensor
  • Replace the outdoor board
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