- Appliances
- Refrigerators
OF OF
Samsung OF OF on a refrigerator: demo mode with cooling off
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
OF OF (also O FF or OFF OFF) means the Samsung fridge is in demo or shop mode, with cooling switched off. It is not a fault: hold the top two buttons on the left (three on newer models) for 5 to 8 seconds until you hear a chime.
Safety first
Stop and check this first
- In OF OF mode the fridge does not cool even though the lights work. If food has been kept like that, check its temperature with the CDC rule before eating it.
Safe checks you can perform
- Switch demo mode off
- Food temperature
- Cooling really returns
Leave these tasks to a qualified professional
- Do not attempt this professional task: Check if cooling does not return
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Check if cooling does not return
What they doIf OF OF does not clear with the buttons or the fridge still does not cool, Samsung service checks the panel and the control.
They must show youthe mode switched off and the temperature falling.
In writingwhat stopped the mode from exiting and the repair done.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Checks and evidence, step by step
Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
- 1
Switch demo mode off
No special tools
Procedure
- Who:
- you.
- How:
- hold the top two buttons on the left side of the panel together (three on newer models) for 5 to 8 seconds, until you hear a chime, as Samsung instructs.
- Result that matters:
- OF OF disappears and the panel shows temperatures.
- If it disappears:
- the fridge cools again; give it time and watch the temperature.
- If it does not:
- check in your model's manual which buttons it uses and repeat; if it stays, contact Samsung.
- Evidence to keep:
- a photo of the panel before and after.
Evidence: Samsung USA refrigerator error codes · Common Samsung refrigerator error codes and their meaning
- 2
Food temperature
No special tools
Procedure
- Who:
- you.
- How:
- put an appliance thermometer in the fridge and another in the freezer, and keep the doors closed while the fridge gets back to temperature.
- Result that matters:
- the CDC sets 40 °F (about 4 °C) or below in the fridge and 0 °F (about -18 °C) or below in the freezer.
- If the readings are within range:
- the food is still protected; check the thermometers again every few hours.
- If the fridge is above 40 °F:
- with the door closed, the CDC gives the fridge 4 hours at most and a full freezer 48 hours (24 if half full). Frozen food that still has ice crystals or is at 40 °F or below can be refrozen. When in doubt, throw it out without tasting it.
- Evidence to keep:
- a photo of each thermometer with the time and a list of what you threw away.
Evidence: Keep Food Safe After a Disaster or Emergency
- 3
Cooling really returns
No special tools
Procedure
- Who:
- you.
- How:
- a few hours after leaving the mode, check with the thermometer that the temperature is falling.
- Result that matters:
- the fridge cools after the mode is switched off.
- If it falls:
- demo mode was the whole cause.
- If it does not fall even though OF OF is gone:
- there is another problem; request service.
- Evidence to keep:
- two readings with the time.
Evidence: Samsung USA refrigerator error codes · Keep Food Safe After a Disaster or Emergency
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Samsung
- Product type
- Refrigerators
Known code variants
- modo demo frigorífico Samsung
- O FF
- OFF OFF
- OFOF
- Samsung fridge demo mode
- Samsung OF OF
- Samsung OF OF frigorífico
What it means
Samsung explains that OF OF, O FF and OFF OFF show Cooling Off mode, the demo mode used in shops: the panel and lights work, but the fridge does not cool. Samsung says no service is needed. To exit, it asks you to hold the top two buttons on the left side of the panel (three on newer models) for 5 to 8 seconds, until a chime sounds. While it was active the food was not kept cold, so it is worth checking.
Warnings and stop conditions
- Mediumeditorial warning
In OF OF mode the fridge does not cool even though the lights work. If food has been kept like that, check its temperature with the CDC rule before eating it.
Evidence: Samsung USA refrigerator error codes · Keep Food Safe After a Disaster or Emergency
Symptoms and causes
Probable causes · in order
- Demo mode switched onConfirmed
This is Samsung's explanation for OF OF. You can confirm it because the panel responds but there is no cooling, and it clears when you switch the mode off with the button combination.
Evidence: Samsung USA refrigerator error codes · Common Samsung refrigerator error codes and their meaning
Virtual technician
Does OF OF still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Samsung USA refrigerator error codes
Samsung · official_doc
- 2
Common Samsung refrigerator error codes and their meaning
Samsung · 2026 · official_doc
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