Why is there noise from my Fujitsu AOT24RN?
- KKaitlyn MitchellSep 8, 2025
The noise you hear from your Fujitsu Air Conditioner could be due to: * The sound of water flowing in the air conditioner’s piping during or immediately after operation. * The sound of coolant flowing, particularly noticeable for about 2 to 3 minutes after starting operation. * A sizzling sound during heating operation, which is produced by the automatic defrosting operation.