How to Fix Samsung Dryer Error 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: Dryer Difficulty: Hard

Problem: Flash code: 4 flashes = Communication error between boards (non-display models)

⚖️ Repair Decision

⚠️ CHECK WARRANTY / AGE

$100 – $250 Range

How to Fix Dryer Error

UNPLUG dryer from electrical power for 10 minutes to reset electronics.
Remove top panel, control panel, and rear access panel to expose all internal wiring harnesses.
Reseat every connector between main control board and other components. Press firmly until audible click.
Clean all connector pins with electrical contact cleaner and lint-free swab. Allow 5 minutes drying time.
Inspect entire harness routing for pinched wires, rodent damage, or abrasion near metal edges. Repair damaged sections.
If error persists after reseating: replace main control board using OEM part DC92-01003A.
Transfer all connectors to new board one-by-one. Secure board with mounting screws to 5 in-lbs torque.
Restore power. Enter diagnostic mode per model instructions to verify communication with all subsystems.

OEM Part #: DC92-01003A

Estimated Market Price: $175

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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EPA Section 608 Certified Technician with 18+ years experience.