Samsung Dryer Error Code 3

Error code 3 on a Samsung dryer signals a door switch error, meaning the control board is not receiving confirmation that the door is properly closed. This prevents the dryer from starting as a safety measure. The issue can be either a door that has not latched fully or a door switch that has stopped functioning correctly.

Resetting the dryer by unplugging it for a minute or two may temporarily clear the display, but if the underlying problem is a faulty door switch or a damaged latch, the code will return as soon as you attempt to run a cycle. A reset alone is not a fix and should only be used as part of diagnosing whether the error is intermittent or consistent.

If the fix is simply closing the door properly or clearing debris from the latch, there is no parts cost. A replacement door switch part typically falls in the range of $10 to $35 depending on the model. If you hire a technician for diagnosis and repair, expect total service costs in the range of $75 to $175 depending on your location and the technician's rates.

Start by pushing the dryer door firmly closed until you hear a click, then try restarting the cycle. If the error returns, inspect the door latch and strike for damage, and check the wiring connections at the door switch. If those checks pass, test the door switch itself with a multimeter for continuity and replace it if it fails the test.

No. Error code 3 is a safety interlock error and the dryer will not run while it is active. The door switch exists to ensure the drum cannot spin while the door is open. Do not attempt to bypass the switch, as doing so removes an important safety barrier and could result in injury.