U-Line Outdoor Nugget Ice Maker Code 11: Water Too High
The number 11 on a nugget ice maker from the U-Line Outdoor Collection tells you the reservoir holds too much water. The machine is not freezing ice quickly enough to use it up.
What does U-Line outdoor refrigeration code 11 mean?
A bare 11 on the panel of a UONB115 or UONP115 in the U-Line Outdoor Collection signals a high water level. The reservoir has more water than the control expects, because nugget ice is not forming quickly enough to consume it. No letter precedes the number. For as long as 11 is lit, ice output falls behind what you would normally get. The low-water reading on these same machines is 12.
11 at a glance
- Code
- 11
- Appliance
- U-Line outdoor refrigeration
- Applies to
- U-Line Outdoor Collection nugget ice makers
- Type
- Needs attention soon
- Can you clear it yourself?
- Sometimes, after the safe checks below
- Most likely cause
- The reservoir level reads high
What you may notice with 11
- The number 11 shows on the display
- Less ice arrives in the bin than usual
- The reservoir looks fuller than normal when checked
- Water may stand where it normally drains away
How the outdoor refrigeration detects 11
A nugget ice maker pulls water into a reservoir and then freezes it into ice. The control watches the level in that reservoir and compares it with the amount it expects at each stage of the process. When the machine makes ice at its normal pace, the water drops as ice forms and fresh water refills it, so the level stays inside a steady range.
If ice production slows, the incoming water is not used up, and the level creeps above what the control expects. The control then puts 11 on the panel. The number is printed without a letter, as with the other Outdoor Collection messages for doors, water and the pump. Because level sensing and the ice cycle depend on each other, a high reading can come from the supply side, from slow ice making, or from the reading itself.
Likely causes of 11
- The reservoir level reads high
- Ice forms more slowly than water arrives
- The level reading disagrees with the actual reservoir
Can you keep using the outdoor refrigeration with 11?
Leave the unit off while you check the basics. The number 11 on its own is no hazard, but the ice supply falls behind while water stays high. Outdoors, standing water also becomes a problem if the weather turns cold, so do not leave the unit running if you see water pooling or leaking. If 11 comes back after a restart, switch the unit off and have it looked at.
What you can safely check
- Turn the ice maker off at its control, then cut its power at the plug or breaker before checking anything.
- Make sure the machine stands level on its pad.
- Clean debris or packed ice out of the bin opening.
- Run your eye along the supply hose for pinching or a fitting that has worked loose.
- Wait a few minutes, then switch the machine on.
- If 11 returns, contact us.
What our technician does for 11
- Check the water level reading against the actual reservoir level
- Test whether ice making is slow enough to leave water standing
- Inspect the supply side for a fitting or valve that lets too much water in
How to keep 11 from coming back
- Keep the unit level on its pad so water settles evenly in the reservoir.
- Clear packed or frozen ice from the bin opening before it slows ice making.
- Check the supply line fittings from time to time, especially after storms or when the unit has been moved.
Technical reference
- Code
- 11
- Appliance
- U-Line outdoor refrigeration
- Control family
- U-Line Outdoor Collection nugget ice makers
- 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 outdoor refrigeration error codes
11 questions
What does 11 mean on an outdoor unit?
The reservoir water level reads high. Ice forms too slowly, water piles up in the reservoir, and the panel shows 11.
Is 11 the reverse of 12?
Yes. On the same machines 12 marks too little water and 11 marks too much. Seeing 11 sends us to find out why the reservoir stays so full.
Does cold weather play a part in 11?
Machines kept outside live through big temperature swings, and sluggish freezing leaves water behind. We examine the level reading together with the ice cycle.
Is the number 11 related to 12?
They form a pair for the water level on these models. The number 11 means the level reads high, and 12 means it reads low. Only one of the two shows at a time.
Will 11 go away if I wait?
It may, if ice making catches up and the level settles. If water stays high and the number returns after a restart, the level reading and the ice cycle both need to be tested.
Need help with 11?
A technician finds the cause at your bar or lanai and puts the price in writing before any part comes out.