Samsung Washing Machine Error LO
⚡ Quick Answer: The Samsung Washing Machine LO error code indicates a failure in the door lock mechanism, preventing the machine from starting a cycle. Symptoms may i... ✅ DIY Fixable
What Does Error LO Mean?
The Samsung Washing Machine LO error code indicates a failure in the door lock mechanism, preventing the machine from starting a cycle. Symptoms may include the door appearing closed yet still displaying the error, the door not unlocking post-cycle, or the error showing immediately when attempting to run the washer. Common causes include the door not being fully closed or a faulty door latch/switch. To address this, check for obstructions and ensure the door is securely latched.
Common Symptoms:
- Machine will not start a cycle
- Door appears closed but error persists
- Door won’t unlock after cycle completion
- Error appears immediately when attempting to run washer
Possible Causes
- Door not fully closed/latched (medium)
- Faulty door latch/door switch or wiring issue (medium)
How to Fix Error LO
DIY Fix Check Door Closure and Obstructions
- Ensure the washer is powered off and unplugged.
- Open the door and inspect the door seal and latch area for any debris or clothing caught in the seal.
- Close the door firmly until it clicks into place and the latch engages securely.
- Plug the washer back in and attempt a wash cycle to see if the error clears.
Technician Only Inspect and Replace Door Lock Assembly or Door Switch
- Disconnect power and move the washer to a serviceable location.
- Remove the washer’s front panel or door assembly as per model-specific service instructions.
- Test continuity of the door switch and lock assembly with a multimeter.
- Check wiring harness connections between the door lock/switch and main control board for secure fit.
- Replace the faulty door lock or switch assembly if testing confirms a defect.
- Reassemble and test the washer to confirm error resolution.
Parts needed: Door lock assembly, Door switch, Wiring harness/connectors
- If the LO error persists after ensuring the door is properly closed and no obstructions are present.
- If the door latch mechanism or switch shows electrical faults during testing.
- If there are signs of damage to the door or lock components that require part replacement.
Next step
Choose the next step for LO
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Door Lock Assembly
Secures the door shut during operation for safety and signals the control board to run.
- Typical part-only price
- $30 - $75
- DIY difficulty
- Easy
- Estimated time
- 10-20 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Door or Lid Switch
Detects whether the appliance door or lid is safely closed before operation.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Model-compatible Washing Machine parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
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Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Washing Machine Cleaner Tablets
Routine tub-cleaning supplies for residue and odor control. They do not repair a mechanical, drainage, or electronic fault.
Braided Washer Inlet Hoses
A maintenance replacement option for visibly worn external fill hoses. Verify thread size, length, and hot/cold connection requirements.
Washer Drain Hose Holder
Helps secure an external drain hose at the standpipe. It does not correct an internal pump or control fault.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does LO error mean on Samsung Washing Machine?
The LO error indicates a door lock failure, preventing the machine from starting.
Can I fix Samsung Washing Machine LO error myself?
Yes, you can check the door closure and remove any obstructions.
How much does it cost to fix LO error?
Repair costs range from USD 50 to 150 for parts, plus labor.
When should I call a technician for LO?
Call a technician if the error persists after checking the door or if there's visible damage.
Data last verified: 2026-07-31
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