Sub-Zero Showroom Mode: Lights On but Not Cooling? How to Fix

Updated October 2026 · By the Sub-Zero Repair Las Vegas service team

Quick answer

Showroom mode (demo mode) makes a Sub-Zero's lights and display work while the compressor and fans stay off, so there's no cooling. It's used in showrooms and sometimes gets activated accidentally after installation or cleaning the control panel. Exiting showroom mode restores normal operation.

Applies toClassic, Designer, PRO

Typical fixDIY

Service call$75

What It Means

Showroom mode lets dealers display a unit without running the refrigeration system. Everything looks normal, but nothing cools.

Common Causes

Activated accidentally by a key sequence
Left on after delivery or a remodel

What You Can Do

Check your use & care guide for the showroom mode key sequence for your model.
If you can't find it, call us and we'll walk you through it.

What a Technician Does

If exiting showroom mode doesn't restore cooling, we diagnose the cooling system.

Need a Sub-Zero Specialist?

$75 service call, credited toward your repair · 1-year parts · 180-day labor warranty · EPA 608 certified · Mon–Fri 8am–7pm · Sat–Sun 8am–4pm

Call (725) 237-7399

FAQ

Frequently Asked Questions

How do I know my Sub-Zero is in showroom mode?

The lights and display work but the unit isn't cooling and you don't hear the compressor or fans. The display may also show a showroom indicator.

Refrigerator problemSub-Zero Refrigerator Not CoolingCauses, quick checks and repair.Alert / codeSub-Zero Sabbath ModeLights and alarms disabled; cooling continues.Alerts & codesSub-Zero Error Codes & AlertsEvery Sub-Zero alert explained.Refrigerator problemSub-Zero Not Turning OnNo lights, no display.

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Sub-Zero Showroom Mode