Unit vibrates excessively, causing noise and movement of the outdoor or indoor unit

Safety first: Turn off power before tightening any mechanical fasteners.

Steps to check:

• 1. Check indoor mounting: Ensure the indoor unit is firmly hooked onto the wall bracket and that the bracket is securely fastened to solid wall anchors.
• 2. Check outdoor mounting: Tighten bolts securing the outdoor unit to its base or brackets. Add or replace rubber vibration pads if missing.
• 3. Inspect fan blade: Look for bent or damaged fan blades that could cause imbalance.

When to call a technician: If vibration persists, a technician should check compressor mounts and fan balance and replace worn components.