High‑pitched squealing or chirping noise when doors are opened or closed.

Safety first: Avoid using petroleum lubricants near gaskets; they can damage rubber.

Step 1 – Locate noise source

• Open and close each door slowly to identify which hinge or area squeals.

Step 2 – Lubricate hinges

• Apply a small amount of food‑grade silicone lubricant to the door hinge pins and bushings.
• Open and close the door several times to work in the lubricant.

Step 3 – Check door alignment

• Verify the door is not sagging or rubbing on adjacent panels.
• Adjust hinge screws or leveling legs to correct alignment.

Step 4 – Treat sticking gaskets

• Clean gaskets with warm soapy water and dry.
• Lightly dust with food‑grade silicone spray or talc to reduce sticking.