How to Fix Maytag Dishwasher Error 4-1

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

Error Code: 4-1 Difficulty: Moderate

Problem: Drain Check Valve Failed

How to Fix 4-1 Error

This is a duplicate of error F4E3, indicating a failed drain check valve within the wash motor assembly. Disconnect power.
Pull the dishwasher out and lay it on its back to access the components underneath.
The check valve is not sold separately. The entire wash motor/circulation pump assembly must be replaced.
Disconnect hoses and wiring from the old motor, remove it, and install the new one.
Reconnect everything securely and set the dishwasher upright.

OEM Part #: Model Specific (Main Control Board)

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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