Kitchenaid Dishwasher Error 8-4

⚡ Quick Answer: The KitchenAid Dishwasher error code 8-4 indicates a malfunction related to the drain pump or float switch. Typically, this error is signaled by a bli... ✅ DIY Fixable

What Does Error 8-4 Mean?

The KitchenAid Dishwasher error code 8-4 indicates a malfunction related to the drain pump or float switch. Typically, this error is signaled by a blinking clean light pattern of 8 flashes followed by 4. It may prevent the dishwasher from starting or cause it to stop mid-cycle. Users might notice standing water or unusual noises during operation, suggesting a blockage or malfunction in the drainage system or float switch.

Common Symptoms:

  • Clean light blinking in pattern: 8 flashes then 4 flashes
  • Dishwasher may not start or may stop mid‑cycle
  • Standing water or signs of water under the base
  • Possible intermittent pump activity

Possible Causes

  • Float switch triggered by water under the dishwasher base (medium)
  • Drain system restriction or drain/pump malfunction (medium)

How to Fix Error 8-4

DIY Fix Check for water under the dishwasher and clear float switch

  1. Turn off power to the dishwasher at the breaker.
  2. Remove the kick plate/toe‑kick and inspect for water in the base tray.
  3. Dry any visible water around the float switch and ensure the float can move freely.
  4. Restore power and test a cycle.

DIY Fix Inspect and clear drainage path

  1. Turn off the dishwasher and disconnect power.
  2. Check the drain hose for kinks or visible blockages.
  3. Run water through the hose to verify flow.
  4. Clean the dishwasher filter and sump area of debris.
  5. Reconnect and run a test cycle.

Technician Only Inspect drain pump and float switch assembly

  1. Access the dishwasher lower panel and remove covers.
  2. Test the float switch and its wiring for continuity.
  3. Test the drain pump motor and impeller for operation and electrical continuity.
  4. Replace defective components as needed.

Parts needed: Float switch, Drain pump assembly, Associated wiring/connectors

🛑 When to Call a Pro:
  • If water continues to accumulate under the unit after drying and repeat errors occur
  • If drain pump or wiring tests indicate electrical faults
  • If user is uncomfortable accessing internal components

Technical Specifications

wattage 60W
component Drain Pump
resistance 10-30 ohms
part_number W10884390
voltage_rating 120V AC

Common Questions

What does 8-4 error mean on KitchenAid Dishwasher?

The 8-4 error indicates a malfunction in the drain pump or float switch, preventing proper operation.

Can I fix KitchenAid Dishwasher 8-4 error myself?

Yes, you can check for water under the unit and clear the float switch. Inspect the drain hose for blockages.

How much does it cost to fix 8-4 error?

The estimated repair cost ranges from $50 to $250+, depending on parts and labor.

When should I call a technician for 8-4?

Call a technician if water continues to accumulate under the unit or if electrical faults are detected.

Data last verified: 2026-03-25

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