How to Fix Maytag Dishwasher Error 6-4

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⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: 6-4 Difficulty: Moderate

Problem: Float Switch Open / Stuck

How to Fix 6-4 Error

This error indicates the float switch, which detects the water level, is stuck in the open (up) position.
Open the dishwasher and locate the float assembly (a plastic dome or cylinder) in the bottom of the tub.
Check for any debris or food particles that may be holding the float up. Clean the area thoroughly.
Lift the float up and down to ensure it moves freely.
If the float is free but the error persists, the electrical switch underneath it has failed. Disconnect power, access the switch from below the tub, and replace it.

OEM Part #: W10195039 (Float Switch)

Estimated Market Price: N/A

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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Estimated repair cost (parts, or parts + labor) Most DIY parts are $50–$250. If you have a quote, use the total.

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