Samsung Washer Error Code DC4

DC4 is a door check error that appears when the washer's power switch has been turned on and off repeatedly in a short period of time, generating enough heat to trigger a protective fault in the door lock circuit. It is not typically caused by a single broken component, but rather by the thermal effects of excessive power cycling. The code is noted as difficult to reproduce under controlled conditions because it depends on a specific pattern of user behavior.

A reset can clear the DC4 code if the underlying cause was simply thermal buildup from power cycling. Unplug the washer, wait at least 10 to 15 minutes, then plug it back in. If the error reappears during normal operation without repeated on/off switching, a reset alone will not resolve the issue and further diagnosis is needed.

If the fault clears after cooling and a reset, there is no repair cost. If the door latch assembly needs replacement, parts and labor typically range from $80 to $200 depending on the model and service provider. A main control board replacement is more expensive, generally ranging from $150 to $400 or more for parts and labor combined.

In many cases, yes. The first step is to stop cycling the power and allow the washer to sit unplugged for 10 to 15 minutes so internal components can cool down. After cooling, plug the unit back in and start a cycle normally. If the error returns without repeated power cycling, inspect the door latch and wiring harness, and consider having the control board evaluated for heat damage.

You should not attempt to run a wash cycle while DC4 is active, as the code indicates the door lock circuit is in a fault state. Running the machine with an unresolved door fault could mean the door is not properly secured during operation. Allow the unit to cool, attempt a reset, and confirm the door latches and locks correctly before resuming use.