How to Fix Samsung Dishwasher Error 3

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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: Moderate

Problem: Flash code 3: Door switch malfunction; switch stuck open or wiring fault (non-display models)

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix Dishwasher Error

Unplug dishwasher from electrical power.
Ensure door closes fully with firm click. Check door strike plate alignment on frame.
Remove inner door panel or control console to access door switch assembly near latch.
Test door switch continuity with multimeter: switch must CLOSE when door is pressed shut.
If switch fails continuity test: disconnect wiring harness.
Remove mounting screws securing switch assembly. Extract old switch.
Install new door switch using OEM part DD64-00001A. Verify actuator arm aligns with door latch.
Reconnect wiring harness securely. Reassemble door panels.
Restore power. Test by opening/closing door while observing control response.
Start cycle to confirm dishwasher operates only when door is fully closed and latched.

OEM Part #: DD64-00001A

Estimated Market Price: $26

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

Get the ‘Secret Service Mode’ Cheat Sheet for your Samsung model. Includes an easy-to-read list of every error code and quick diagnostic tips.

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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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