KitchenAid Dishwasher 6-4 error code
- Dishwasher
On KitchenAid dishwashers, error 6-4 indicates: Wash motor electrical problem — the wash pump motor is not running or communicating. Start with a 5-minute power reset at the breaker, then follow the dishwasher-specific checks below before ordering replacement parts for 6-4.
Reviewed August 2025 · sources below
Safe to keep using?
Use caution
This issue may worsen during use — limit operation and address promptly.
- • Turn off the water supply before disconnecting hoses.
4 product recalls may apply
Brand-level matches — verify your model.
Show
4 product recalls may apply
Brand-level matches — verify your model.
- Notice
CPSC, Whirlpool Corporation Announce Recall of Dishwashers
Feb 2005 · Confirm your model
- Notice
Dishwasher Recalled by Whirlpool
May 1996 · Confirm your model
- Notice
Whirlpool Will Retrofit Below-Counter Dishwashers
Jul 1989 · Confirm your model
- Notice
Dishwasher Model Number Correction for Whirlpool Modification
Aug 1988 · Confirm your model
Next step
Still seeing 6-4?
Show a photo or describe the symptom. Answer a few safety-first questions and see whether a part is needed.
Free guided checks · No account required · Don’t open live electrical, gas, or refrigerant equipment
How to fix 6-4
- Unplug the dishwasher or turn off power at the breaker before inspecting any components.
- Reset KitchenAid 6-4: leave power off for 5 minutes, restore power, then restart. Confirm whether 6-4 returns.
- Check the most common cause for 6-4: Wash motor electrical problem — the wash pump motor is not running or communicating.
- Inspect hoses, connections, and visible wiring for damage, clogs, or loose fittings.
- If a reset and basic checks don't clear the code, the fix often requires a replacement part (see recommended parts below).
- Reassemble, restore power, and run a test cycle. If 6-4 returns, the faulty component likely needs replacement.
Call a pro when: Call a technician if you smell burning, see sparking, hear grinding from the motor, or the code returns after replacing the suspected part.
What 6-4 means
Wash motor electrical problem — the wash pump motor is not running or communicating.
Buy the replacement part
Likely causes
Food debris starves the wash motor and trips the 6-4 code.
Check: Remove the lower rack and clean the filter and sump.
Est. cost: $0–$0
Glass or bone fragments lock the impeller.
Check: With power off, confirm the impeller spins freely.
Est. cost: $70–$110 · DIY ~6/10
Part: Dishwasher Circulation Pump (MPN W10876537)
The motor windings or control circuit fail after years of use.
Check: If the impeller is free and 6-4 returns after a reset, the motor likely needs replacement.
Est. cost: $90–$160 · DIY ~8/10
Guided repair checklist
Complete the safe checks one at a time. Progress is saved for this browser so you can continue later.
0 of 6 checks recorded
Recommended next action
Start with this check before considering replacement parts.
Check 1 of 6
Unplug the dishwasher or turn off power at the breaker before inspecting any components.
Did the repair resolve the issue?
Restoring repair progress…
Questions about 6-4
What does 6-4 error code mean on a KitchenAid dishwasher?
Wash motor electrical problem — the wash pump motor is not running or communicating.
How do I reset KitchenAid dishwasher 6-4?
Unplug the dishwasher or switch it off at the breaker for 5 minutes, then restore power and restart. A reset clears a stored 6-4 after a glitch, but the code will return if the underlying fault is still present.
What part do I need for KitchenAid 6-4?
Often yes — error 6-4 frequently points to a failed component. Check the recommended parts below for direct replacements.
Can I fix KitchenAid error 6-4 myself?
Many 6-4 errors can be fixed DIY if you're comfortable with basic tools. Start with the reset and steps above. If the issue involves electrical components or the code returns after replacing parts, call a professional.
KitchenAid 6-4 on specific models
Other KitchenAid Dishwasher codes
Prevent this problem next time
- Clean the dishwasher filter weekly
- Scrape plates before loading
- Run hot water at the sink before starting a cycle
Sources
Manufacturer meaning
Wash motor electrical problem — the wash pump motor is not running or communicating.
FixApplianceCode guidance
Clean the filter and check the wash pump for debris before replacing the motor.
Source type: Service documentation
Source: KitchenAid dishwasher service documentation
Last reviewed: 2026-08-23
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
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