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Error code reference

U-Line Ice Maker Error Code CL

Cleaning cycle reminder

U-Line codesU-Line ice maker codes

Cleaning cycle reminder — displayed approximately every six months to remind user to clean the unit.

First step from the service manual

Initiate cleaning cycle or override by pressing and holding up, down, and light buttons for 10 seconds.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What CL means on a U-Line ice maker

The CL code on a U-Line ice maker is not an error or fault condition. It is a time-based maintenance reminder that the unit's internal clock triggers automatically after approximately six months of operation. The display is designed to prompt the user or technician to perform a routine cleaning cycle, which helps prevent mineral scale buildup, biofilm accumulation, and ice quality degradation over time. Because the reminder is purely calendar-driven, it does not reflect any detected sensor fault, refrigerant issue, or mechanical failure.

The system that generates this reminder is a simple elapsed-time counter built into the control board's firmware. Once the counter reaches the six-month threshold, the CL code is pushed to the display and will remain visible until the cleaning cycle is completed or the reminder is manually overridden. No operational components, such as the compressor, water inlet valve, or thermistors, trigger this code. It is strictly a housekeeping notification tied to the unit's internal timer logic.

To clear the CL code, the technician or homeowner can either run a full cleaning cycle through the unit's cleaning mode or override the reminder by pressing and holding the up, down, and light buttons simultaneously for 10 seconds. Running the actual cleaning cycle is the recommended approach, as it resets the timer and addresses the underlying maintenance need. Simply overriding the display without cleaning will clear the code but will not reset the six-month counter properly for the next maintenance interval.

Source: manufacturer service documentation.

Common causes of CL

  1. 01

    Six-month maintenance timer elapsed

    Wiring / connection

    The most common and expected reason for the CL code is simply that approximately six months have passed since the last cleaning cycle or timer reset. This is normal operation and requires no parts or repairs.

  2. 02

    Cleaning cycle never previously performed

    Wiring / connection

    On newly installed units or units that have never had a cleaning cycle run, the CL code will appear at the first six-month interval. Running the initial cleaning cycle will clear the code and establish the ongoing reminder schedule.

  3. 03

    Previous reminder was overridden without cleaning

    Wiring / connection

    If the CL code was dismissed in the past by holding the button combination rather than running a full cleaning cycle, the reminder may reappear sooner or persist. Completing a proper cleaning cycle is the correct resolution.

  4. 04

    Control board timer reset after a power interruption

    Wiring / connection

    A prolonged power outage or a hard reset of the unit can cause the internal elapsed-time counter to behave unexpectedly, potentially triggering the CL reminder earlier than the normal six-month interval.

See the test procedure for each cause

Frequently asked questions about CL

What does CL mean on a U-Line ice_maker?
The CL code is a routine cleaning cycle reminder that appears on the display approximately every six months. It is not a fault or error code and does not indicate a broken component. The unit's control board tracks elapsed time and uses the CL display to prompt periodic maintenance. Clearing it requires either completing a cleaning cycle or pressing and holding the up, down, and light buttons for 10 seconds.
How do I fix or clear the CL code on my U-Line ice maker?
To clear the CL code, press and hold the up, down, and light buttons simultaneously for 10 seconds to override the reminder. For the best result, run the unit's full cleaning cycle before using this override, which addresses the actual maintenance need and properly resets the internal timer for the next six-month interval.
Is it safe to keep using my U-Line ice maker when CL is showing?
Yes, the CL code does not indicate a mechanical failure or safety hazard, and the unit will continue making ice while the reminder is displayed. However, it is best practice to complete the cleaning cycle promptly, as mineral scale and biofilm buildup can affect ice quality and long-term component performance if maintenance is repeatedly skipped.
Will resetting the unit clear the CL code on a U-Line ice maker?
A standard power cycle or reset will generally not clear the CL code, since the reminder is stored in the control board's firmware and is tied to the elapsed-time counter rather than a live fault condition. To clear it, you must either complete the cleaning cycle or use the specific button combination: press and hold the up, down, and light buttons for 10 seconds.
How much does it cost to address the CL code on a U-Line ice maker?
Because the CL code is a maintenance reminder and not a component failure, there is typically no repair cost involved. If you choose to hire a technician to perform the cleaning cycle, service call and labor fees can range from roughly $75 to $200 depending on your location and the service provider. Cleaning supplies for a DIY cleaning cycle are generally inexpensive.

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