Oven racks do not slide smoothly; they stick or tilt during use.

Safety first: Allow the oven to cool before working inside.

Steps to check:

• Remove the oven racks and side supports.
• Clean all contact surfaces with degreaser to remove baked-on residue.
• Inspect racks and supports for bending; replace any deformed parts.
• If fitted, check telescopic runners for smooth operation; replace worn or seized runners.

Warning: Do not lubricate runners with standard oils; use only high-temperature, food-safe products if specified by Gram.