KitchenAid Dishwasher Error 6-4
⚡ Quick Answer: The KitchenAid dishwasher error 6-4 indicates a malfunction related to the float switch or a water circulation issue. Symptoms include the dishwasher ... ✅ DIY Fixable
What Does Error 6-4 Mean?
The KitchenAid dishwasher error 6-4 indicates a malfunction related to the float switch or a water circulation issue. Symptoms include the dishwasher filling and draining without spraying water through the spray arms, resulting in cycle stalls. Additionally, an overfill condition may occur, leading to water accumulation beneath the unit. Addressing the float switch activation or fault is essential for resolving this issue.
Common Symptoms:
- Dishwasher fills and drains but does not spray water through the spray arms before cycle completion. %2BKitchenAid%2BDishwasher%2Bcode?utm_source=chatgpt.com))
- Error 6‑4 code displayed and the wash cycle stalls without water circulation. %2BKitchenAid%2BDishwasher%2Bcode?utm_source=chatgpt.com))
- Possible overfill condition with water accumulation beneath the unit.
Possible Causes
- Float switch activation or fault (medium)
How to Fix Error 6-4
DIY Fix Check for float obstruction and proper float movement
- Turn off and unplug the dishwasher.
- Access the float assembly inside the dishwasher bottom.
- Ensure nothing is obstructing the float’s movement.
- Gently move the float up and down to confirm free motion.
DIY Fix Inspect under-unit for water accumulation
- Power off the dishwasher at the breaker.
- Pull the dishwasher out from under the counter carefully.
- Check for any water pooled underneath.
- Dry any water found and inspect for leaks in hoses or fittings.
Technician Only Test float switch and circulation pump
- Disconnect power and remove access panels.
- Use a multimeter to check float switch continuity.
- Test circulation pump electrical function according to service manual specifications.
- Replace faulty float switch or circulation pump as needed.
Parts needed: Float switch, Circulation pump
- If water is detected under the unit and you cannot identify the source of leakage.
- If the error persists after checking the float switch and circulation components.
Next step
Choose the next step for 6-4
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Float Switch
Detects the maximum water level to prevent overflow and potential flooding.
- Typical part-only price
- $15 - $40
- DIY difficulty
- Easy
- Estimated time
- 10-20 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Dishwasher Circulation Pump
Circulates pressurized water through the dishwasher spray arms during the wash cycle.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 60W |
|---|---|
| component | Drain Pump Assembly |
| resistance | 10-30 ohms |
| part_number | W10837080 |
| voltage_rating | 120V AC |
Common Questions
What does 6-4 error mean on KitchenAid dishwasher?
Error 6-4 indicates a float switch malfunction or water circulation issue, causing cycle stalls without water spraying.
Can I fix KitchenAid dishwasher 6-4 error myself?
Yes, check for float obstructions and ensure proper movement. Inspect for water accumulation beneath the unit.
How much does it cost to fix 6-4 error?
Estimated repair cost ranges from $80 to $350, including parts and labor, depending on your region.
When should I call a technician for 6-4?
Call a technician if you detect water under the unit or if the error persists after checking the float switch and circulation components.
Data last verified: 2026-07-26
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