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Samsung Dryer Error Code Clg

Reviewed by the ApplianceErrors Editorial Team · Verified against manufacturer service documentation · Last verified: June 11, 2026
⚠ Medium Severity 🔧 Easy DIY

Clog warning — exhaust duct restriction detected (early D80/D90 indicator)

The most common cause of the Clg error on a Samsung dryer is lint buildup in the exhaust duct (~55% of cases); start with: clean the exhaust duct.

💰 DIY cost: $0–$30 👨‍🔧 Pro cost: $100–$220 Save $100+ by doing it yourself
Samsung Dryer error code Clg on the display panel
How the Clg code appears on a Samsung dryer display

What Does Error Code Clg Mean on a Samsung Dryer?

Clog warning — exhaust duct restriction detected (early D80/D90 indicator).

Clg fires when the dryer's vent sensor detects that exhaust airflow has dropped below an acceptable threshold during operation. The control board compares measured back-pressure and airflow against expected values; sustained restriction triggers the warning. Unlike the D80/D90/D95 codes that display a specific restriction percentage, Clg is a simpler early-warning flag on models that show a text alert rather than a numeric readout. It differs from heater faults like HE, which relate to the heating circuit rather than airflow.

Models affected: Samsung dryers with a vent sensor and airflow self-check, typically models that also report D80/D90/D95 percentages (both electric and gas), roughly 2015 onward
What owners report: Owners commonly report Clg appearing after clothes take noticeably longer to dry or the drum runs hot. A quick win many describe is cleaning the exterior vent hood and the full duct run, which often clears it; false triggers can occur with a partly stuck flap or a crushed transition hose behind the unit.

What Causes Error Code Clg?

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

  1. 1
    Lint buildup in the exhaust duct 55% of cases
  2. 2
    Exterior vent hood blocked or flap stuck 20% of cases
  3. 3
    Duct run too long or with too many elbows 15% of cases
  4. 4
    Crushed transition duct behind the dryer 10% of cases

How to Fix Samsung Dryer Error Code Clg

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

    Clean the exhaust duct

    Disconnect the duct and clean the full run with a rotary brush kit; vacuum from both ends.

    🔩 Dryer vent cleaning brush kit ($15–$30)
  2. 2

    Check the exterior hood

    Go outside while the dryer runs — strong, warm airflow should exit. Clear the flap of lint, nests, or screening.

  3. 3

    Rerun the Vent Blockage test

    Use the dryer's vent check mode (empty drum, Time Dry per the manual) to confirm the restriction is cleared.

How to Reset Error Code Clg

After cleaning, run the vent blockage test cycle; the warning clears when airflow is restored.

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

Full Samsung dryer reset guide → Enter diagnostic mode → Symptom guide: Dryer not drying →

Did this guide fix your appliance?

When to Call a Professional

If Clg persists after a thorough cleaning, the in-wall duct run may need professional vent service.

Average professional repair cost for this issue: $100–$220

Related Error Codes

1 AC
Air circulation error — insufficient airflow detected through the drum
⚠ High Severity
HE
Heater fault — drum not heating or overheating
⚠ High Severity

Find Replacement Parts

Use these links to find the exact replacement parts for your Samsung Dryer:

🔩
Search PartSelect
Samsung Dryer repair parts
🔧
Search RepairClinic
Step-by-step video guides

External links — ApplianceErrors.com is not affiliated with these retailers.

More Samsung Dryer Error Codes

tE Thermistor (temperature sensor) failure OD Vent blockage detected bE2 Button error — a control-panel key is stuck 9C1 Power supply error — abnormal/low line voltage 9E1 Line voltage abnormality — supply voltage out of range AC Communication error — main and sub control boards not communicating

Frequently Asked Questions

Can I keep using my Samsung Dryer when error Clg appears? +
You often can for a cycle or two, but the airflow issue behind Clg will keep interrupting normal operation until it is fixed. Plan the repair rather than ignoring the code.
What most commonly causes Clg on a Samsung Dryer? +
Across reported Samsung dryer repairs, the most frequent is lint buildup in the exhaust duct (55% of cases), exterior vent hood blocked or flap stuck (20%), then duct run too long or with too many elbows (15%). Check them in that order before replacing any parts.
Clg keeps coming back after a reset — what should I check next? +
A reset only clears the stored Clg fault; if it returns, the airflow problem is still present. Move on to the physical checks — clean the exhaust duct, then check the exterior hood — 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 Samsung Dryer error Clg? +
A DIY repair typically runs $0–$30 in parts, versus $100–$220 for a professional service call, so handling it yourself saves around $100. Expect the work to take about 10–20 minutes.
Which Samsung Dryer models show error Clg? +
Clg is documented on Samsung dryers with a vent sensor and airflow self-check, typically models that also report D80/D90/D95 percentages (both electric and gas), roughly 2015 onward. 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 11, 2026.

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