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Tips and essentials for the restaurant, foodservice and HVAC spaces in one place.

CMA Dishwasher Deliming

CMA Dishmachine Logo - CMA Dishwasher Deliming

If you started to notice white or grayish crusty spots building up on a CMA Dishmachine unit, then it’s probably mineral build-up. It’s important to delime your CMA dishwasher in order to get rid of these. Otherwise, mineral deposits can build up on your dishes, heating elements, spray arms and other internal components, which can cause a unit to be less efficient or malfunction.

Deliming a dishwasher can be really easy to do and doesn’t require much in the way of supplies. The following instructions for CMA dishwasher deliming should work for units, such as the L-1X or any of the CMA Dishmachine UC models like the UC50e or the UC65e

Supplies

CMA Dishmachine Deliming Instructions

Be sure to delime a commercial dishwasher regularly to avoid scale build up, or it could result in damages to equipment or dishes getting dirtier than before. Use the following steps to properly delime your unit. 

  1. Drain the unit - You will need to manually drain the unit.
  2. Fill the unit - Fill the unit with fresh, clean water.
  3. Add deliming solution - Follow the solution’s directions to add it to the unit.
  4. Close the door - Be sure to securely close the unit’s door.
  5. Start deliming cycle - Begin the deliming cycle on the unit and let it run.
  6. Inspect interior - Once cycle is completed inspect the interior of the unit for any remaining deposits.
    1. Note: If there’s still mineral deposits present after running the cycle, repeat steps 1 through 5.
  7. Drain and refill the unit - After the deliming process is done, drain and refill the unit again.
  8. Run the unit - Let the unit run through a normal cycle without dishes to ensure all deliming solution is rinsed out. Then drain and refill again.

Need some more guides for your commercial dishwasher? Check out our large selection of CMA Dishmachine manuals and diagrams for tips specific to your model.

Please contact a local authorized service agent who can help with these specific units and all your commercial kitchen equipment needs.