U-Line Bar Refrigerator Error Code E10: Lower Door Open
E10 on a U-Line dual-door model, shown as 10 on the display, means Door 2 is open. Close the door. The U-1224DWRS-00A is the model covered.
Low: a door-open alert; the unit keeps cooling.
- Code
- E10
- Maker
- U-Line
- Equipment
- Bar refrigeration
- Applies to
- U-1224DWRS-00A
What does U-Line error code E10 mean?
On dual-door models the control tracks both doors. E10, which appears on the display as 10, is the Door 2 open error. It is the door alert for the second door, and the fix is just to close that door fully. The code sits in the control's error list in service mode alongside the other door codes, so a technician can see how often it was left open. Because it is a door alert, it does not point to a sensor or a cooling problem. If the alert continues with the door shut, the usual reasons are a door that is not sealing, a switch that is not registering, or wiring to the switch. Nothing else in the manual is attached to E10, so it is treated as a door alert only. The number being shown as 10 rather than E10 is worth knowing so it is not mistaken for a temperature reading. On a dual-door cabinet each compartment has its own temperature zone, so a Door 2 left open mostly affects the compartment behind it, and that compartment needs time to recover once the door is shut. Reading the log afterward shows whether the door is being left open regularly, which is often a matter of habit rather than a failing part.
Affected models and control systems
U-Line U-1224DWRS-00A, a dual-door model.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- 10 shown on the display
- Audible alert while the second door is open
- Second compartment warming
Possible causes
Likely causes — what usually sits behind error code E10 on this control. A technician confirms which one it is before any part is replaced.
- Door 2 open
- Door resting on a bottle or shelf
- Gasket folded or dirty
- Door switch for Door 2 not registering
- Wiring to the Door 2 switch loose
Safe checks before calling for service
- Close Door 2 fully and look for anything holding it.
- Check the gasket sits flat.
- Wait a minute to see whether the 10 clears.
- If it stays, tell us the model and the display.
How a technician diagnoses error code E10
- Read the service-mode error list for the door codes.
- Check Door 2 alignment and gasket.
- Test the switch with the door open and closed.
- Inspect the wiring to the control.
- Replace the switch or adjust the door as needed.
- Service mode and switch wiring are behind panels near 115 V parts.
- Telling a seal problem from a switch problem takes a meter.
How error code E10 differs from similar codes
E10 is Door 2 on the U-1224DWRS-00A; E0 and E9 are door codes on other dual-zone models.
Technical reference
- Document
- U-Line USER GUIDE & SERVICE MANUAL, Model: U-1224DWRS-00A
- Maker documentation
- U-Line owner support
- Edition
- Publication Number 30379, 3/2024 Rev. Q
- Models / control
- U-1224DWRS-00A
- Section
- Control Operation - Service, Error codes
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related U-Line bar refrigeration error codes
Why does it show 10 and not E10?
On this model the display shows the number 10 for the code.
Is it a temperature problem?
No. It is a door alert for Door 2.
How do I clear it?
Close Door 2 fully. If the alert comes back right away, the door is not sealing or the switch is not registering it.
Need help with U-Line error code E10?
A technician confirms the cause on site and gives you the price in writing before any work starts.