KitchenAid Vent Hood Display C: Charcoal filter cleaning reminder

What C means

On KitchenAid vent hoods with a display that can run in recirculating mode with a charcoal filter, a C shown while the fan runs means the charcoal filter needs cleaning. The hood counts 120 hours of fan operation before showing it. The hood is working as designed; the letter is a filter reminder. Wash and reactivate the charcoal filter, then reset the reminder from the control.

Common causes of C

120 hours of fan operation reached
Charcoal filter loaded with cooking residue
Reminder not reset after the last cleaning

✓ One safe check you can try

1. Turn the hood off and let the light and fan stop. 2. Remove the charcoal filter. 3. Wash and reactivate it as the filter instructions describe. 4. Refit it. 5. Press and hold FAN for 3 seconds to reset. In vented mode, pressing + and - together disables the alarm. If C returns right after a reset, call us.

! Why to stop there

The reminder is a filter message, so it normally needs no repair.
A reminder that returns immediately after a reset suggests a control issue we can test.
Our quote is in writing before work starts, and the repair has a 30-day warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Range Hood codes

FKitchenAid Vent Hood Display F: Grease filter cleaning reminder

CC questions

How many hours before C appears?

After 120 hours of fan operation the display shows C while the fan runs. That is the signal to wash and reactivate the charcoal filter, and it only matters if your hood recirculates air through one.

How do I reset the reminder?

After cleaning the filter, press and hold FAN for 3 seconds. The reminder then clears and the hour count starts again from zero, so C will not return until another 120 hours of use.

Can I turn the alarm off?

In vented mode the alarm can be disabled by pressing + and - together. If your hood runs in recirculating mode, keep the reminder switched on and clean the filter when it shows.