Samsung dryer CLg: The vent test detected restriction

Documentation checkedBy ErrHiveUpdated October 28, 2026

THE SHORT ANSWER

The vent test detected restriction.

CLg is a Vent Blockage test result. Clear the exhaust restriction before returning to normal drying.

First safe check

Confirm the message appeared at the end of a vent test.

Applies to

Samsung dryer families covered by the cited US guidance. Match the full model number and exact display; this is not an exact-model compatibility claim.

Before you start

Do not bypass the door switch, run with disconnected exhaust, or open electrical or gas components. Stop for smoke, scorching, or a gas odor.

Go to safe checks

WHAT YOU MAY NOTICE

Symptoms to record

The dryer displays CLg.

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 2 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

Inspect the exhaust route
Check the accessible duct for crushing and arrange a proper lint cleanout, including inaccessible sections.
What to note
The vent can exhaust without a known obstruction.
Repeat the supported test
With the drum empty and cool, repeat the model’s Vent Blockage test after cleaning.
What to note
A normal result is obtained before relying on normal drying.

THE DETAILS MATTER

Scope & troubleshooting notes

How to interpret this result

C80/C8 and C90/C9 are severity displays in the same vent-test family. They are consolidated here because the owner action is the same: correct restricted exhaust, then verify.

YOUR NEXT DECISION

When to stop and get help

Stop drying with unresolved restricted exhaust, scorching, or an abnormal burning smell; arrange cleaning or service.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

Samsung support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

Samsung dryer error codes
Samsung US · Manufacturer support · Checked Oct 28, 2026
Heating errors; temperature errors; voltage errors — Samsung US dryers; codes vary by model
Run a Vent Blockage test on your Samsung dryer
Samsung · Manufacturer support · Checked Oct 28, 2026
Test preparation and results — Samsung US consumer support; check the model manual before applying a procedure.
Clothes are not dry after a Samsung dryer
Samsung US · Manufacturer support · Checked Oct 28, 2026
Vent test results; HC; 9C1 — Samsung vented dryers with the relevant test

ErrHive is an independent information resource, not an authorized representative of Samsung. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.