How to Fix Maytag Dishwasher Error E4

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

Error Code: Dishwasher Difficulty: Easy

Problem: Communication problem between water level sensor and main computer

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix Dishwasher Error

Turn off power at the circuit breaker.
Remove the lower access panel and control panel.
Inspect all wire harness connections between the water level sensor and control board.
Check for damaged, corroded, or loose connectors.
Test the continuity of the wiring harness with a multimeter.
Clean all electrical contacts with electrical contact cleaner.
If wiring is intact, suspect control board failure.
Replace the control board assembly if necessary.
Reconnect all harnesses and secure connections.
Power up and run diagnostic tests to verify communication.

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OEM Part #: W10134017

Estimated Market Price: $30-60

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

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Appliance Type

Appliance Age

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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Browse all Maytag error codes: Maytag Error Codes