Beverage Centers Diagnostics

Sub-Zero Beverage Centers
Error Codes

Meanings, severity levels, safe checks you can perform, and when to call a technician.

Enter the code shown on your beverage centers display

Is it safe to keep using it?

Depends on code severity. Low/Medium codes often allow continued use, High severity requires immediate stop.

Can error codes be reset?

Some codes clear after power cycle. Persistent codes indicate underlying issues needing repair.

When should I stop using it?

Stop immediately for water leak codes, burning smell, or any High severity error.

Most Common Codes

NO-COOL DOOR-AJAR TEMP-HIGH LIGHT-FAIL COMPRESSOR-LOUD FROST-BUILD

All Codes

COMPRESSOR-LOUD DOOR-AJAR FROST-BUILD LIGHT-FAIL NO-COOL TEMP-HIGH

Error Code Directory

Click any code for detailed troubleshooting steps

Low Medium High

Code Meaning Severity Common Symptom

COMPRESSOR-LOUD Compressor Producing Abnormal Noise Medium A mechanical noise — louder than the normal compressor hum — comes from the lower cabinet area when the cooling system is running. View DOOR-AJAR Door Not Sealing Properly Medium A film of moisture or water droplets forms on the exterior surface of the glass panel, indicating warm humid room air is contacting the cold glass from the inside — a sign the seal has failed. View FROST-BUILD Frost Forming Inside Beverage Cabinet Medium A white frost layer or patches of ice are visible on the rear interior wall or along the back edges of shelves in the lower beverage zone. View LIGHT-FAIL Interior LED Lighting Not Working Low The LED accent lighting that normally illuminates the beverage center interior when the door opens is completely out or noticeably dimmer than normal. View NO-COOL Unit Not Cooling to Setpoint High Bottles and cans stored in both zones feel warm to the touch even after hours of operation, and the temperature display confirms the compartment is well above setpoint. View TEMP-HIGH One Zone Consistently Above Setpoint Medium The wine zone or the beverage zone displays a temperature well above its programmed setpoint while the other zone cools normally — the asymmetry is the defining characteristic of TEMP-HIGH. View