What Extra Low and 20 min lights blinking Means
On Samsung dryers without a digital display, problems appear as blinking indicator lights, and Samsung’s US article on blinking lights maps the Extra Low and 20 min lights blinking together to an invalid power source frequency, the same problem a display model shows as FC or FE. Samsung’s step is to restart the cycle and request service if it persists.
Common Causes of Extra Low and 20 min lights blinking
- Generator or inverter supply with an unstable frequency
- Control board misreading the supply
🔧 One Safe Check You Can Try
Restart the cycle. If the dryer is on a generator or inverter, the frequency of that supply is the likely cause and the lights should stop once utility power returns. On utility power with the pattern persisting, Samsung directs owners to service.
⚠ Why You Shouldn't Go Further Than That
- Supply frequency is not adjustable at the dryer; a board that misreads it is replaced.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.