Demo (Showroom) Mode On, Cooling Disabled

What it means

This code appears on Samsung refrigerators with a digital display when the showroom demo mode is on; it is not a fault. In this mode the lights, display and buttons work, but the compressor does not run, so there is no cooling. It is usually cancelled by pressing and holding a button combination that varies by model, as shown in the user manual. The same code can mean something else on other brands.

Models covered: Samsung refrigerators with a digital display; the code usually flashes on the temperature display. Codes differ between some series.

Related codes: 21E22E23E5E

Symptoms4

• OF OF flashes on the temperature display.
• The interior light works but the fridge does not cool.
• No sound of the compressor running; on some models only the fans run.
• Often noticed on a new fridge delivered from a showroom, or after buttons were pressed by accident.

Possible causes4

• Demo mode left on by the showroom when the fridge was delivered.
• Mode turned on by accident by holding control panel buttons, for example while cleaning or by children.
• Mode turned on during an earlier test or service and not cancelled.
• A rare control board fault that stops the mode from being cancelled.

How to diagnose5

1. Confirm the letters on the display, and that the light works while there is no cooling.
2. Look up how to cancel demo mode in the user manual for your model, because the buttons and hold time differ between models.
3. If you do not have the manual, use the model number on the label inside the fridge to get it from Samsung or customer service.
4. After cancelling, make sure the display shows normal temperatures and the compressor starts.
5. If the mode comes back by itself or will not cancel even when following the manual, a technician unplugs the fridge before checking the control board.

How to fix5

1. Cancel demo mode with the button combination given in your model manual, usually two buttons held together for several seconds.
2. Move food to a cool place for now if the fridge has been without cooling for a long time.
3. Let the fridge run with the doors closed until it reaches the set temperature before loading it fully.
4. Ask customer service for help if the manual method does not work.
5. A technician checks the control or display board if the mode keeps returning by itself.

There is usually no cost at all because the mode is cancelled from the buttons; the only cost is a technician visit if it cannot be cancelled or keeps returning.

Prices are rough estimates including the part and the technician’s fee, and vary with brand, model and part source.
Prices last updated: September 2026

Frequently asked questions