⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: All LEDs on simultaneously Difficulty: Moderate
Problem: Diagnostic test mode active
How to Fix All LEDs on simultaneously Error
- This indicates the dishwasher has entered Service Diagnostic Mode.
- Press ‘Cancel’ or open and close the door to exit.
- If it won’t exit, unplug the dishwasher for 1 minute to reset.
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Kenmore error codes: Kenmore Error Codes


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