U-Line Two-Door Ice Machine Code 10 (E10): Door 2 Is Open
The bare number 10 on a two-door U-Line ice machine tells you Door 2 is open. Ice making pauses until that door is shut, and the panel leaves off the E.
What does U-Line ice machine code E10 mean?
Two-door U-Line ice machines like the UONB115 and the UHNP315 put 10 on the display when Door 2 is open. No E appears in front of it. The control does not register the second door as shut, so it pauses ice production until that door is closed and detected. The first door is reported as E9, which means the two codes tell you which door to close.
E10 at a glance
- Code
- E10
- Appliance
- U-Line ice machine
- Applies to
- Two-door U-Line ice machines: UONB115 and UHNP315
- Type
- Normal status, not a failure
- Can you clear it yourself?
- Yes, it is a normal message or setting
- Most likely cause
- Door 2 was left ajar
What you may notice with E10
- The display shows the bare number 10, with no E.
- Ice making is paused until the door is shut.
- The second door looks closed but may not have latched.
- Door 1 shows no code, so the first door is fine.
How the ice machine detects E10
Each door on a two-door ice machine has its own switch, and the control checks both. Door 2 is the second door, and its switch tells the control whether that door is sealed against the cabinet. While the switch says closed, the ice cycle keeps running.
When the switch reports open, the control pauses ice making and shows 10. The number appears without a letter, which sets it apart from E9 for the first door. It is the control's way of saying which door to look at. Ice making pauses because an open door lets warm air reach the cabinet, and the machine waits rather than freezing in those conditions. When the door closes and the switch reports it, the code goes away. A door that is clearly shut while the number stays up points to the switch or to how the door sits.
Why E10 appears
- Door 2 was left ajar
- Something rests against the second door and keeps it off the cabinet
- A gasket along that door has slipped or curled
- The Door 2 switch does not register the door as shut
Can you keep using the ice machine with E10?
Yes, there is no danger here. The number only tells you the second door is not sensed as closed. Push it shut, make sure it latches, and the machine should carry on. Stored ice melts faster while the door is not sealing, so do not leave it ajar. A number that stays up with a shut door means the switch or gasket needs a check.
What you can safely check
- Push the second door shut and listen for it to latch; no power needs to be switched off.
- Clear away whatever rests on the door edge.
- Press the gasket flat if you see it curled or caught.
- Check that the machine stands level.
- Contact us if 10 stays up with the door shut.
What our technician does for E10
- Test the Door 2 switch for a closed signal
- Check the door fit and the gasket seal
- Confirm 10 clears when the second door is sensed closed
How to keep E10 from coming back
- Press the second door shut until it latches every time you take out ice.
- Keep the door edge free of scoops, bags and other items.
- Check the gasket for curling or buildup that stops the door from seating.
Technical reference
- Code
- E10
- Appliance
- U-Line ice machine
- Control family
- Two-door U-Line ice machines: UONB115 and UHNP315
- Maker documentation
- U-Line owner manuals and support
- Checked
- November 2026
Code meanings come from the maker’s documentation and our own repair work; we do not reprint the maker’s document. Confirm the full model number before acting on a code. We are an independent repair company, not affiliated with U-Line Corporation.
Related U-Line ice machine error codes
E10 questions
Why does the display say 10 and not E10?
The panel prints the number by itself. It still reports Door 2 open, and the control treats it like the lettered code for Door 1.
Which code belongs to the first door?
Door 1 reports as E9. With E9 for the first door and 10 for the second, the display tells you which door to close without opening both to look.
Does ice making stop while 10 shows?
Yes, it pauses. Once the control reads Door 2 as shut, the cycle starts again and ice output returns to normal.
Can 10 and E9 show at the same time?
Yes, if both doors are open. E9 stands for the first door and 10 for the second, so the display can report both. Close each door until it latches and the codes should clear as each one is sensed.
Will the number go away without any help?
It clears once the control senses Door 2 closed. When the door is shut and the number lingers, the Door 2 switch or the gasket fit needs a look from us.
Something else going on with your ice machine?
A technician finds the cause at your bar or lanai and puts the price in writing before any part comes out.