BUNN Slush Machine Message CLEAN DUE NOW: Cleaning Overdue
CLEAN DUE NOW means the cleaning is overdue, and the display will not clear until the machine is cleaned. Clean the dispenser using the cleaning procedure.
Medium: the machine is overdue for cleaning, which affects food safety until it is done.
- Code
- CLEAN DUE NOW
- Maker
- BUNN
- Equipment
- Slush & frozen drinks
- Applies to
- Ultra NX frozen beverage dispenser
What does BUNN CLEAN DUE NOW mean?
The Ultra NX dispenser keeps a cleaning schedule, and CLEAN DUE NOW is the message for a cleaning that is overdue. It is stronger than the daily reminder CLEAN DUE TODAY. The Use and Care Guide's table of warnings and error messages says the display will not clear until the machine is cleaned, and the action is to clean the dispenser per the cleaning procedure. Acknowledging the message, power cycling or pressing buttons will not remove it. The cleaning has to be carried out and confirmed. The guide does not say whether the machine stops dispensing while the message is up, so follow the instruction on the display. The reason for the rule is food safety: a barrel and product path that is not cleaned on schedule can hold residue and bacteria. Having the Cleaning Card at the machine, or opening the Cleaning Guide on the LCD, keeps the steps in order.
Affected models and control systems
BUNN Ultra NX frozen beverage dispensers. Other BUNN frozen drink machines use different messages.
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
- CLEAN DUE NOW stays on the display
- Message does not clear after a restart
- Staff cannot clear it by pressing keys
Possible causes
Likely causes — what usually sits behind CLEAN DUE NOW on this control. A technician confirms which one it is before any part is replaced.
- Scheduled cleaning not completed in time
- Cleaning started but not finished and confirmed
- Cleaning Card not at the machine, so steps were skipped
- Cleaning done on a different dispenser than the one showing the message
Safe checks before calling for service
- Find the Cleaning Card, or hold the Center Dot for 5 seconds to open the Cleaning Guide on the LCD.
- Follow the cleaning steps in order and do not skip the sanitizing step.
- Confirm the cleaning at the end on the display.
- If CLEAN DUE NOW stays on afterward, note which step you reached and call.
How a technician diagnoses CLEAN DUE NOW
- Confirm the message and the last cleaning date.
- Walk through the cleaning guide on the LCD to see whether it completes.
- Check the barrel, auger, seals and product path for residue.
- Check the control's cleaning counter and clock.
- Reset or correct the schedule if it is wrong.
- Cleaning involves an auger, a refrigerated barrel and sanitizer concentrations that must be right.
- The cleaning counter and clock are part of the control setup.
- Residue left in seals or the product path is a food safety matter.
How CLEAN DUE NOW differs from similar codes
CLEAN DUE NOW is the overdue message. CLEAN DUE TODAY is the earlier reminder.
Technical reference
- Maker documentation
- BUNN owner support
- Edition
- 58028.0000 B 2/22
- Models / control
- Ultra NX frozen beverage dispenser
- Section
- Warnings & Error Messages table, side 1
- 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 BUNN slush & frozen drink error codes
Can I clear CLEAN DUE NOW by power cycling?
No. The guide says the display will not clear until the machine is cleaned.
Is the machine broken?
No. It is a cleaning schedule message.
Where are the steps?
On the Cleaning Card or in the Cleaning Guide on the LCD.
Need help with BUNN CLEAN DUE NOW?
A technician confirms the cause on site and gives you the price in writing before any work starts.