Equipment Produces Loud Noise Or Vibration - Daikin R71FUV1 Service Manual

Symptom-based Troubleshooting
2.9 Equipment Produces Loud
Noise or Vibration
Applicable Model
All models of SkyAir series
Supposed Causes
Improper installation
Contacts of fan, piping, casing, etc.
Noise of refrigerant flow
Operating noise of drain discharge equipment
Noise of resin components contracting
∗ In addition, the following errors may be conceivable
• Refrigerant overcharge
• Air interfusion
• Flash noise of insufficient refrigerant (hushing
noise)
Si20-701_B
49