Samsung Dryer F1 Error Code: Causes and Fixes

Editorially reviewedUpdated 2026-02-20

Quick answer: Control relay fault

What you’ll notice

Dryer stops and will not restart; control board has flagged a relay fault.

Samsung Dryer Code F1 low severity
Samsung models: The lint filter sits in the door opening on all Samsung DV series dryers. The exhaust duct exits at the lower-rear. Samsung's Vent Sensor actively measures airflow restriction throughout the cycle and directly generates D80/D90 readings when blockage reaches threshold.

Common causes

  • Power surge damaged a control relay
  • Loose connector on the relay board
  • Control board failure

Step-by-step fix

  1. Unplug for 5 minutes and retry.
  2. If recurring, reseat harness connectors on the control board.
  3. Inspect the board for burn marks.

Tools you may need

Screwdriver set

Prevention

  • Use a surge protector on the dryer outlet.

When to stop DIY

Replace the control board if the fault persists and harness connections are secure.

FAQ

What does F1 mean on Samsung dryer?

F1 usually indicates: Control relay fault.

Can I keep using the appliance with F1?

Use caution. Severity is low. Replace the control board if the fault persists and harness connections are secure.

How long does this fix usually take?

Typical first-pass troubleshooting takes 5 minutes (reset); 30+ minutes (board inspection).