Trane air conditioner causes noticeable vibration and rattling noises in the outdoor unit or connected ductwork.

Safety first: Turn off power before tightening panels or adjusting the unit.

• Level the unit: Check that the outdoor Trane condenser sits level on its pad. Shim the pad or unit corners with composite shims if significantly out of level.
• Tighten panels: Tighten all cabinet screws and fasteners on the outdoor unit and indoor air handler.
• Inspect fan blade: Look for bent blades or missing balance weights. Replace the blade if damaged.
• Secure ductwork: Add hangers or supports to vibrating ducts and seal loose joints with mastic or foil tape.

If vibration persists, a technician can check for compressor mounting or internal issues.