Indoor unit emits clicking or popping noises during operation or when starting/stopping.

Note: Light clicking or popping is often normal as materials expand and contract.

Steps to try:

• Tighten front panel: Ensure the front cover is fully latched and any screws are snug.
• Check mounting: Confirm the indoor unit is firmly attached to the wall bracket and not flexing.
• Observe pattern: If noises are brief at startup/shutdown, they are likely normal. Continuous loud noises may indicate another issue.

When to call a pro: If noises are very loud or accompanied by performance issues, have a technician inspect for loose components.