Samsung Dryer FC Error — Power Frequency Fix

What it means

Samsung dryer FC is the frequency error.
Samsung's exact wording: 'These codes mean that there is an invalid power source frequency.'
Household power should be a stable 60Hz in North America (50Hz in much of the rest of the world) — if the dryer reads anything significantly outside that, it logs FC and stops the cycle to protect the motor.

Affected Models

Samsung DVE45 / DVE50 / DVE52 series electric dryers
Samsung DVG45 / DVG50 / DVG52 series gas dryers
Samsung DV9000T / DV9100T Smart Dial series
Samsung BESPOKE AI laundry dryers
Samsung FlexDry and WashTower units (shared dryer module)

Common Causes

Brief grid frequency dip during the cycle
Dryer plugged into an inverter or generator with poor frequency stability
Dryer wired to wrong voltage/frequency standard for the region after a move
Failing inverter or motor control board reading frequency incorrectly
Severe voltage drop being misread as a frequency issue

How to Fix It

Restart the cycle.

Press POWER to turn the dryer off, wait 30 seconds, turn it on, and restart the cycle.
FC is often a transient grid event that doesn't recur.
Confirm you're on grid power, not a generator.

Portable generators and battery inverters often produce power with poor frequency stability — fine for lights and small appliances, not for a dryer's motor control electronics.
If you're on backup power, expect FC and wait for grid power to return.
Verify the dryer matches the regional standard.

A dryer bought for North America (120/240V at 60Hz) won't work on a 230V/50Hz European supply and vice versa.
If you've recently moved internationally, this is the issue and a transformer alone won't fix it.
Call an electrician if FC repeats on grid power.

If you're certain you're on standard grid power and FC keeps appearing, the household supply itself may be unstable.
An electrician with a power-quality logger can confirm whether the supply frequency is drifting or whether the issue is inside the dryer.

When to Call a Professional

If FC clears after restarting the cycle and doesn't return, treat it as a one-time grid event.
If FC keeps appearing on every cycle, the dryer's power supply needs attention from an electrician — not a Samsung service call.

Frequently Asked Questions

Why would frequency be wrong if the house lights are working fine?

Lights and small appliances tolerate frequency drift of a few percent without noticeable effect.
The dryer's motor speed controller, in contrast, locks to grid frequency precisely — a drift of even 1-2Hz that's invisible to your eyes will trigger FC.
Inverter-based generators, battery backups, and some solar setups in island mode are the common culprits when grid power itself is fine.