⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: CLN Difficulty: Easy
Problem: The heat exchanger is undergoing an automatic self-cleaning cycle.
How to Fix CLN Error (Step-by-Step)
- This symbol indicates that the dryer’s automatic self-cleaning cycle for the heat exchanger is active.
- No action is required from you. This is a normal maintenance function.
- The cleaning process will run automatically during the drying cycle.
- Do not interrupt the drying cycle or turn off the power while this is in progress.
- The ‘CLN’ indicator will disappear once the self-cleaning process is complete.
- You can continue to use your dryer as normal and confirm the error stays cleared during a full test cycle.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
Most DIY parts are $50–$250. If you have a quote, use the total.
More options (for a better recommendation)
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Bosch error codes: Bosch Error Codes


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