Safety first: Unplug the unit before adjusting feet or opening covers.

Level the unit: Use a spirit level to check front‑to‑back and side‑to‑side. Adjust feet or place a stable mat under the unit.
Check rubber feet: Replace any missing or hardened feet to improve damping.
Compressor mounts: Tighten compressor mounting bolts and ensure rubber grommets are intact.
Internal clearance: Open the rear cover and ensure no hoses or wires are pressed tightly against the cabinet, which can transmit vibration.

Unit vibrates excessively and may move slightly on the countertop during operation.

Possible Causes