F4Warning
KitchenAid Dishwasher F4 Error Code
The detergent dispenser or rinse aid dispenser is not operating correctly.
Common causes
- Mechanical blockage in dispenser door
- Failed dispenser motor or solenoid
- Wiring issue
How to fix it
- Clear any dried detergent from dispenser
- Manually open and close dispenser door to check movement
⚠ When to call a pro: If dispenser does not open during cycle, the dispenser assembly likely needs replacement.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.