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LG Washing Machine Error Code tCL

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 10, 2026
✓ Low Severity 🔧 Easy DIY

Tub clean reminder — drum needs cleaning

The most common cause of the tCL error on a LG washing machine is drum clean cycle due after ~30 washes (~70% of cases); start with: run the tub clean cycle.

💰 DIY cost: $0–$15 👨‍🔧 Pro cost: $0–$0
LG Washing Machine error code tCL on the display panel
How the tCL code appears on a LG washing machine display

What Does Error Code tCL Mean on a LG Washing Machine?

Tub clean reminder — drum needs cleaning.

tCL is a periodic maintenance prompt, not a fault code. The control board tracks completed wash cycles and displays tCL after roughly 30 cycles to recommend running the Tub Clean routine, which flushes residual detergent, hard-water scale, and biofilm that cause odor and mildew. Unlike genuine error codes (such as drain or motor faults), tCL does not interrupt washing and clears once a full Tub Clean cycle finishes. It reflects usage counting only, not any sensed mechanical or electrical problem.

Models affected: Most LG front-load and top-load washers with a dedicated Tub Clean cycle, including models such as WM3900HWA, WM4000HBA, WM3400CW, WT7300CW, WM8100HVA, WM4500HBA, and WT7900HBA.
What owners report: Owners commonly report tCL appearing on the display or as a blinking indicator after a stretch of frequent loads, and it can seem alarming despite being harmless. A common quick win is running the empty Tub Clean cycle with a cleaner tablet or bleach; if the reminder lingers afterward, owners often find a power cycle or holding the Tub Clean button clears it.

What Causes Error Code tCL?

Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:

  1. 1
    Drum clean cycle due after ~30 washes 70% of cases
  2. 2
    Reminder not cleared after running Tub Clean 30% of cases

How to Fix LG Washing Machine Error Code tCL

🔧 Easy DIY Est. time: 10–20 min
⚡ Safety first: Unplug the appliance before opening any panels or touching internal components.
  1. 1

    Run the Tub Clean cycle

    Select 'Tub Clean' on the cycle selector. Add a washing machine cleaner tablet or 1 cup of bleach to the empty drum (not the dispenser) and run the full cycle.

    🔩 Affresh or LG washing machine cleaner
  2. 2

    Clear the reminder

    The tCL indicator clears automatically once a Tub Clean cycle completes. If it lingers, press and hold the Tub Clean button for 3 seconds or power cycle the washer.

How to Reset Error Code tCL

Run a complete Tub Clean cycle. The tCL counter resets automatically after the cycle finishes.

Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.

Full LG washer reset guide → Enter diagnostic mode →

Did this guide fix your appliance?

When to Call a Professional

Tub Clean is a maintenance reminder, not a fault. No professional service needed.

Average professional repair cost for this issue: $0–$0

Find Replacement Parts

Use these links to find the exact replacement parts for your LG Washing Machine:

🔩
Search PartSelect
LG Washing Machine repair parts
🔧
Search RepairClinic
Step-by-step video guides

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More LG Washing Machine Error Codes

OE Drainage error — water not draining within expected time UE Unbalanced load — cannot complete spin cycle IE Water inlet error — water not filling within expected time LE Motor locked — hall sensor or stator fault dE Door open or door lock failure FE Water overflow error — drum overfilling

Frequently Asked Questions

Can I keep using my LG Washing Machine when error tCL appears? +
Usually yes — tCL is a low-severity maintenance notice that rarely stops the washing machine from working, but clearing the underlying cause prevents it from escalating.
What most commonly causes tCL on a LG Washing Machine? +
Across reported LG washing machine repairs, the most frequent is drum clean cycle due after ~30 washes (70% of cases) then reminder not cleared after running Tub Clean (30%). Check them in that order before replacing any parts.
tCL keeps coming back after a reset — what should I check next? +
A reset only clears the stored tCL fault; if it returns, the maintenance problem is still present. Move on to the physical checks — run the Tub Clean cycle, then clear the reminder — since the code will reappear until the root cause is resolved. This is a beginner-friendly job needing only basic hand tools.
How much does it cost to fix LG Washing Machine error tCL? +
A DIY repair typically runs $0–$15 in parts, versus $0–$0 for a professional service call. Expect the work to take about 10–20 minutes.
Which LG Washing Machine models show error tCL? +
tCL is documented on Most LG front-load and top-load washers with a dedicated Tub Clean cycle, including models such as WM3900HWA, WM4000HBA, WM3400CW, WT7300CW, WM8100HVA, WM4500HBA, and WT7900HBA.. Other units sharing the same control platform can display it too, so the fixes here generally transfer across the series.

Sources & References

Content verified against manufacturer service documentation. Last verified: June 10, 2026.

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