KitchenAid Dishwasher Error Code tCL: How to Fix It

Easy 2-3 hours (mostly waiting time) Low Severity Verified June 2026
Error Code
tCL
Brand
KitchenAid
Product Type
dishwasher
Severity
Low
DIY Difficulty
Easy
Estimated Fix Time
2-3 hours (mostly waiting time)
The tCL error code on your KitchenAid dishwasher is a maintenance reminder that appears when it's time to run a Self Clean cycle. This isn't actually an error - it's your dishwasher telling you it needs a thorough cleaning to remove mineral buildup and food residue that can affect performance.
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Tools You'll Need

How to Fix Error Code tCL

  1. Remove all dishes and dishware

  2. Check and clean the dishwasher filter

  3. Add dishwasher cleaner or vinegar

  4. Start the Self Clean cycle

  5. Let the cycle complete

  6. Wipe down interior surfaces

  7. Reinstall the filter and racks

Parts You May Need

Dishwasher cleaner tablets
Check Price on Amazon
Dishwasher cleaner tablets
Check Price on Amazon
Dishwasher cleaner tablets
Check Price on Amazon
Dishwasher cleaner tablets
Check Price on Amazon
Dishwasher cleaner tablets
Check Price on Amazon
Dishwasher cleaner tablets
Check Price on Amazon
Dishwasher cleaner tablets
Check Price on Amazon
Dishwasher cleaner tablets
Check Price on Amazon
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When to Call a Professional

Contact a KitchenAid technician if the tCL code persists after completing the Self Clean cycle, if the dishwasher won't start the cleaning cycle, or if you notice unusual noises, leaks, or poor cleaning performance even after the maintenance cycle.

Frequently Asked Questions

How often should I run the Self Clean cycle on my KitchenAid dishwasher?
KitchenAid recommends running the Self Clean cycle once a month or whenever the tCL code appears. If you have hard water or wash heavily soiled dishes frequently, you may need to clean more often.
Can I use the dishwasher normally while the tCL code is showing?
Yes, the tCL code is just a reminder and won't prevent normal operation. However, running the cleaning cycle will improve your dishwasher's performance and help prevent future problems.
What happens if I ignore the tCL error code?
Ignoring the tCL reminder can lead to reduced cleaning performance, longer cycle times, spotty dishes, and potential buildup of bacteria and odors. Eventually, mineral deposits could damage internal components.
Can I use bleach instead of vinegar for the Self Clean cycle?
No, never use bleach in your KitchenAid dishwasher. It can damage rubber seals and stainless steel components. Use white vinegar or a commercial dishwasher cleaner specifically designed for this purpose.
Why does my KitchenAid dishwasher show tCL every few weeks?
The frequency of the tCL reminder depends on your usage and water quality. Hard water areas may see this code more often. If it appears very frequently, consider installing a water softener or using rinse aid to reduce mineral buildup.