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Model library · Sub-Zero Refrigerator

511

Sub-Zero 511 Refrigerator with Freezer Drawer Repair

Most common issues on this model

  1. Cabinet cold overnight but warmer as the day goes on
  2. Frost accumulating in the freezer section
  3. Freezer drawer out of square, so it fails to seal when pushed in

The 511 stacks a refrigerator over a roll-out freezer drawer instead of using a full-height freezer. Both compartments are adjusted from the controls on the back wall of the refrigerator, near the top, which surprises owners who look for them on the drawer.

As a 500 Series model that is no longer produced, its trouble spots follow the drawer design. Frost inside the freezer suggests humid air getting past a gasket, and a drawer that has drifted out of square on its slides will not close flush. We check both, along with the overnight-cold, afternoon-warm pattern common to the generation.

Parts can generally still be ordered, though legacy items take longer. Expect a written price before we start and a 30-day workmanship warranty after.

Key features

  • Built-in refrigerator over a roll-out freezer drawer
  • Dairy compartment, deluxe crispers with rollers and humidity controls, roll-out basket
  • Both sets of controls on the back wall of the refrigerator, near the top
  • 500 Series, out of production
  • Older parts arrive more slowly than current ones, but can be had
→Codes

Error codes this model can show

511511 questions
Where are the 511 temperature controls?

On the back wall of the refrigerator section, near the top. Both the refrigerator and freezer settings are there rather than on the freezer drawer.

Why won't my 511 freezer drawer seal?

After years of use the drawer can slip out of square on its slides, so it no longer meets the gasket evenly. We realign it and inspect the seal for damage.

Is frost in the 511 freezer normal?

Some is expected, but heavy buildup usually means humid air is leaking in, often through a worn gasket or an imperfectly closed drawer. We find the leak before addressing the frost.

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Book in about a minute, or call the desk. Same-day windows inside the Loop on most days, next-day across the rest of Houston.

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