How to Fix LG Dishwasher Error P4

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

Error Code: P4 Difficulty: Easy

Problem: Download Cycle: Night Care. Quietly washes dishes overnight.

How to Fix P4 Error

Indicates the ‘Night Care’ cycle has been downloaded.
No repair needed.
This cycle takes longer but runs the wash pump at a lower speed to reduce noise.
Ideal for running the dishwasher while sleeping.

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.

Is it under warranty?

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