Meiko M-iClean - Error 51: Detergent Dispenser Low or Empty

⚠️ Caution / Monitor Closely
Warning: The information provided here is for educational purposes only. Working with commercial kitchen equipment involves high voltage, gas, and high temperatures. We strongly recommend contacting a certified service technician for any repairs. We are not responsible for any damage or injuries resulting from DIY repair attempts. This information is provided 'as is' without any guarantees of completeness or accuracy.

TLDR

On your MEIKO UM, UM+, US unit, error code 51 indicates that the detergent dispenser is low or completely empty. To resolve this, you must refill the detergent container and then prime the dosing system to ensure detergent flow to the wash chamber. This will allow the machine to resume normal washing operations.

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Technical Details

Repair Steps:

  1. Check Detergent Level: First, visually inspect the external detergent container or the internal detergent compartment on your MEIKO UM, UM+, US machine. Confirm if the detergent level is low or completely empty.
  2. Refill Detergent: Carefully refill the detergent container with the appropriate commercial dishwashing detergent, adhering to safety guidelines for chemical handling. Ensure the suction lance is fully submerged in the detergent.
  3. Prime the Dosing System: After refilling, it’s crucial to prime the detergent dosing system to remove any air from the lines. Consult your MEIKO UM, UM+, US operator’s manual for specific instructions on how to manually prime the detergent pump or activate an automatic priming cycle through the machine’s control panel.
  4. Inspect Suction Line and Filter: If the error persists after refilling and priming, power off the machine and carefully inspect the detergent suction line for any kinks, blockages, or air leaks. Check any inline filters for debris and clean them if necessary.
  5. Verify Dosing Pump Function: If you are a qualified technician, and the issue persists, briefly observe the detergent dosing pump during a wash cycle or priming. Listen for its operation and look for signs of detergent movement through transparent lines. A faulty pump or a persistent airlock can prevent detergent delivery.
  6. Check for Leaks: Examine the detergent lines and connections for any signs of leaks that might be causing detergent loss or air ingress into the system. Tighten connections or replace compromised hoses as needed.
  7. Reset and Test: Once these checks are complete, restart your MEIKO UM, UM+, US unit and initiate a wash cycle to confirm the error has cleared and detergent is being dispensed correctly.

Common Questions:

Q: Why does my MEIKO UM, UM+, US unit’s detergent run low so quickly?

A: High usage, incorrect detergent concentration settings, or even a small leak in the dosing lines can cause detergent to deplete faster than expected. Regularly check for leaks and ensure your machine’s chemical settings are optimized for your water conditions and soil load.

Q: How do I prime the detergent dispenser on my MEIKO UM, UM+, US machine?

A: Priming procedures vary by model. Typically, you’ll find a dedicated “prime detergent” function within the machine’s control panel menu, or it may involve a specific button combination or holding a start button after refilling. Always refer to your MEIKO UM, UM+, US operator’s manual for exact instructions.

Q: What if the detergent container is full, but error code 51 still appears?

A: If the container is full, but the error persists, it usually indicates a problem with the detergent delivery system. This could be a blocked suction line or filter, an airlock in the dosing pump, or a faulty detergent dosing pump itself. A qualified technician should investigate these components.

When to call a technician

Consider calling a certified technician if:

  • The error keeps coming back after you've tried the steps above.
  • You're not comfortable doing the checks or repairs yourself.
  • You notice unusual noise, smell, or behaviour.
  • Equipment is under warranty and you want official service.
  • You need the unit back in service quickly with minimal downtime.

Need Professional Help?

Our certified technicians can help you on-site.