Loud vibration or humming from the outdoor unit, sometimes transmitted into the building.

Safety first: Turn off the power before tightening any bolts or touching the outdoor unit.

• Step 1 – Check mounting bracket: Ensure the Royal Clima outdoor unit is firmly secured to the wall or floor bracket. Tighten loose bolts.
• Step 2 – Inspect vibration pads: Replace missing or cracked rubber pads under the unit feet.
• Step 3 – Check fan blade: Look for bent blades or debris causing imbalance. Clean and straighten minor bends carefully.

When to call a technician: If vibration persists, the compressor mounts or internal components may need professional attention.