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Error code reference

LG Washer Error Code DC

Door check

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What the DC error code actually means

The DC error means your LG washer detected a problem with the door lock and cannot confirm the door is properly closed and secured. This could be a wiring issue, a faulty door latch mechanism, or physical damage to the door hook from being pulled open forcefully. The washer will not run until the problem is resolved to prevent operating with an unsecured door.

Diagnostic procedure

The full DC procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check whether the door lock switch unit is inserted and not damaged; check wire disconnection.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of DC

Ranked by how often they cause this code
  1. 1Loose or disconnected door lock switch wiring
  2. 2Defective door lock switch assembly
  3. 3Deformed or damaged door hook
  4. 4Incorrectly connected switch terminal
  5. 5Worn switch contact points

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Questions people ask about DC

What does DC mean on a LG washer?
DC stands for door check and indicates the washer's control board cannot confirm the door is properly locked. The fault points to the door lock switch circuit, which may involve a disconnected wire, an incorrectly seated terminal, a defective switch, or a physically damaged door hook. The machine stops operation as a safety measure until a valid door lock signal is detected.
Is it safe to use my LG washer when the DC code is showing?
No, you should not attempt to bypass or force the washer to run while the DC code is active. The error exists specifically to prevent the machine from operating with an unsecured door, which could result in water leaking onto the floor or the door opening during a spin cycle. Resolve the door lock issue before resuming use.
How much does it cost to repair a DC error on an LG washer?
If the repair is limited to reseating a loose wire connector, there is no parts cost involved. Replacing a door lock switch assembly typically costs between $30 and $80 for the part depending on the specific model. If a technician is needed, expect to add $100 to $200 in labor, bringing a professional repair to a total range of roughly $130 to $280 depending on location and service rates.
Can I fix the DC error myself?
Some DC errors can be resolved without professional help. Start by firmly pressing the door closed and checking that the door hook is not visibly bent or broken. Then inspect the wire connector at the door lock switch to ensure it is fully seated and no wires are loose. If the switch itself has failed internally, replacing the door lock switch assembly is a moderately involved repair that a confident DIYer with basic appliance repair skills can complete.
Will resetting the washer clear the DC error code?
A reset may temporarily clear the code display, but the error will return if the underlying problem has not been fixed. To reset, unplug the washer for about one minute and then plug it back in. If the DC code reappears when you try to start a cycle, the door lock switch circuit still has a fault that needs to be diagnosed and corrected.

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