Freezer Diagnostics
U-Line Freezer
U-Line Freezer
Error Codes
Meanings, severity levels, safe checks you can perform, and when to call a technician.
Enter the code shown on your freezer 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.
Error Code Directory
Click any code for detailed troubleshooting steps
Low
Medium
High
Code
Meaning
Severity
Common Symptom
DOOR-AJAR
Door Open Too Long
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
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E0
Door Open Alert
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
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E1
Cabinet Thermistor Open
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
View
E2
Evaporator Thermistor Open
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
View
E5
Cabinet Thermistor Shorted
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
View
E6
Evaporator Thermistor Shorted
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
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FROST-UP
Heavy Frost Buildup
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
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NO-LIGHT
Interior Light Stays Off
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
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WARM-FRZ
Freezer Not Holding Temperature
High
The owner notices a real change in cooling, ice production, door behavior, or storage conditions.
View