Unit operates but causes excessive vibration and noise transmitted through the wall or floor.

Steps:

• Check indoor mounting: Gently lift and reseat the Blaupunkt indoor unit on its wall bracket. Ensure all hooks are engaged and the unit is level.
• Outdoor base: Inspect the outdoor unit base or brackets. Tighten bolts and add or replace rubber anti-vibration pads.
• Pipe isolation: Ensure refrigerant pipes are not rigidly touching walls; add foam insulation or clips with rubber inserts where needed.
• Balance check: Confirm fan blades (indoor and outdoor) are clean and not missing pieces that could cause imbalance.