Error code · Dryer

Samsung Dryer Code Ct: Temperature Out of Range

Ct appears on Samsung dryers with a digital display during the Vent Blockage test. It means the dryer is below freezing or above 104 degrees F, which is outside the range where the test can read…

Low risk · DIY check OK

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Code: Ct
Appliance: Dryer
Brand: Samsung
Warranty: 30-day workmanship

What Ct means

Ct appears on Samsung dryers with a digital display during the Vent Blockage test. It means the dryer is below freezing or above 104 degrees F, which is outside the range where the test can read correctly. The dryer is not broken. The test needs the dryer at normal room temperature. You will see Ct when you start the test in a cold garage or a very hot space.

Common causes of Ct

A dryer kept in an unheated garage, porch, or cold room
A very hot laundry area that pushes the dryer past 104 degrees F
A dryer just moved in from a cold truck or storage

✓ One safe check you can try

1. Leave the dryer and the door closed at room temperature for one hour. 2. If the room is hot, let it cool first. 3. Run the Vent Blockage test again. 4. If Ct stays after the room is comfortable, stop and have it checked.

! Why to stop there

If Ct persists at room temperature, the dryer may be reading the temperature wrongly.
We compare the dryer's reading with the actual air temperature around it.
We quote in writing first, and our repairs carry a 30-day workmanship warranty.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dryer codes

AE3 / AE4 / AE5 / E3Samsung Dryer Code AE3 / AE4 / AE5 / E3: Control Communication Error tE3 / tC5 / tCS / 1 tC / 1tC5 / 1tCSSamsung Dryer Code tE3 / tC5 / tCS / 1 tC / 1tC5 / 1tCS: Heat Sensor Reading 9E1Samsung Dryer Code 9E1: Supply Voltage Problem bC2 / 6E2 / 6C2Samsung Dryer Code bC2 / 6E2 / 6C2: Stuck Control Button d0 / 1 DC / 1 dFSamsung Dryer Code d0 / 1 DC / 1 dF: Door Not Registering Closed 1 HC / 1 FC / 1 ACSamsung Dryer Code 1 HC / 1 FC / 1 AC: Prefix Variants tS / tC / tE / tOSamsung Dryer Code tS / tE: Temperature Sensing dC / dE / dF / doSamsung Dryer Code dE / dF: Door Problem

CtCt questions

Why does my dryer show Ct?

It is telling you the dryer is too cold or too hot for the Vent Blockage test, below freezing or above 104 degrees F. It is a condition to wait out, not a failure.

How long should I wait before retrying?

Let the dryer sit at room temperature for about one hour, then run the test again. That gives the cabinet and the sensor time to reach a normal range.

Does Ct mean my vent is blocked?

No. Ct only says the test could not run. Once the dryer is at a normal temperature, the test can run and tell you whether the vent is clear or needs cleaning.

Book a visit

Still unsure about Ct?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 561-5298