As a homeowner, it’s reasonable for you to expect your appliances to continue working correctly after a power outage. Unfortunately, that doesn’t always happen. If you have a Samsung fridge in your kitchen, for example, you might find that it doesn’t resume cooling once the power comes back on right after an outage.
If your Samsung fridge fails to cool down after a power outage, start by performing a power reset by turning the breaker OFF/ON or by pressing POWER FREEZE and POWER COOL until you hear a chime. Failing that, check your compressor last. If it’s quiet and not even trying to start, your problem is at either the inverter board or the main control board.
In the following sections, we’ll walk you through each step of the process to troubleshoot your Samsung fridge that won’t cool down after a power outage.
Step One: Perform A Power Reset
After an outage ends and the power comes back on, your fridge should be working as it usually does. Of course, depending on how long the power outage lasted, your fridge may need extra time to cool back down to its set temperature.
However, if the fridge isn’t cooling down even after an hour or two, you’ll need to start troubleshooting the issue.
Perform a simple power reset. What that means is you’ll be shutting off the power to the fridge again temporarily. To do this, find the dedicated breaker for your fridge and shut it off.
Once it’s off, leave it alone for at least five minutes. When that time has passed, you can then flip the breaker and power up your Samsung fridge.
What does this do?
Well, just like anything with electrical or electronic components in them, sometimes the most straightforward fix is to turn it off and then back on again.
This allows all of the components inside the fridge to do a power reset and hopefully function normally again.
Step Two: Reset The Main Control Board
After performing a power reset, you should leave the fridge alone for 30 minutes. That should give it enough time to cool down significantly.
However, if performing a power reset doesn’t help, then the next step in your troubleshooting process would be to reset the main control board. Let’s take a closer look at what that is and how you’ll perform that reset.
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What it is:
Firstly, let’s get on the same page about what the Main Control Board is. Simply put, that’s the brain of your Samsung fridge. It takes the form of a circuit board with plenty of electronic components on it.
That control board is responsible for coordinating and powering all of the fridge’s different components, including the cooling system that keeps the temperatures low inside the fridge’s compartments.
How to perform the reset:
- To reset the Main Control Board in your Samsung fridge, press the Power Freeze and Power Cool buttons together and hold them until you hear a chime. That should be enough to reset the Main Control Board and get it working again.
- However, if that doesn’t work for you or if you’re unsure of the steps, it’s always an excellent idea to refer to the user manual that came with the fridge.
- In there, you’ll find more detailed instructions that are specific to the Samsung fridge model that you have. Simply follow those instructions and reset the Main Control Board as needed.
Resetting the main control board should be enough to get it working again. If not, move on to Step Three.
Step Three: Check The Compressor
Suppose resetting the Main Control Board didn’t help, and the fridge remains warm even after another 30 minutes. If that’s the case, then the next step you can take to troubleshoot the issue is to check the compressor.
First, let’s do a quick recap:
Earlier, we mentioned that the Main Control Board is like the brain of your Samsung fridge. Well, the compressor is like the heart.
As its name suggests, its job is to compress the refrigerant and help it circulate throughout the fridge’s cooling system. When it works correctly, it’ll help lower the temperature inside the fridge compartments and keep them cold.
To troubleshoot this part, pull the fridge out slightly and locate the compressor. Typically, you’ll find it at the back of the fridge, closer to the ground.
1. Listen To The Compressor
Listen carefully for any sounds. If the compressor is giving off a gentle hum, that means it’s still working. You should give your fridge more time to cool down (30-60 minutes) before continuing to troubleshoot it.
However, suppose the fridge compressor is silent. In that case, there are two possible problems: the inverter board or main control board may have failed.
2. Check If The Main Control Board Failed
Earlier in Step Two, we already explored the function of the Main Control Board. Suppose resetting it didn’t help and the compressor doesn’t seem to be working.
in that case, there’s also the possibility that the board is simply not functioning correctly anymore.
Why it fails:
There are several reasons why your fridge’s Main Control Board might fail or get damaged. Some of the more common reasons include simple wear and tear, which is more likely if the fridge has been in use for many years.
Besides that, moisture or excessive heat may have found its way to the control board and damaged it.
Related: Why Samsung Fridge Is Leaking Water?
However, suppose you have just experienced a power outage. In that case, the higher likelihood is that the Main Control Board for your fridge may have been shorted out.
You see, power surges are very common when power is restored after an outage, and that can mean bad news for your household appliances that are still plugged in.
How to fix:
Replacing the main control board can be pretty tricky. First of all, you’ll need to get your hands on the correct replacement part. To find that, please refer to the fridge’s User Manual and any technical sheet that may have come included with the appliance.
Once you have it, it can be fixed by:
- Disconnecting the power supply to the fridge to avoid any risk of injury or electrocution.
- Following the user manual, locate the access panels you’ll need to remove to reach the existing Main Control Board.
- You’ll want to take a picture of the board to use as a reference later.
- Then, remove any screws that hold the board in place, as well as any wire harnesses connected to it.
- Put in the new board, and connect it back the same way.
- If you’re unsure about anything, refer to that photo that you took earlier. That will be a very helpful guide for you to use when replacing the screws and any electrical connectors.
3. Failed Inverter Control Board
Besides the Main Control Board, there is also another component called the Inverter Board.
This board serves a similar function to the Main Control Board, though it is only dedicated to the compressor. What that means is that it coordinates the compressor’s activities and supplies power to it when necessary.
So, if you’ve tried all of the previous troubleshooting steps yet the compressor isn’t switching on. There’s a good chance that the problem is with the Inverter Control Board.
Why it fails:
As mentioned earlier, the Inverter Board is similar to the Main Control Board, though it only serves the compressor. Because of that, it can also fail for similar reasons.
Firstly, the board may have become faulty as a result of natural wear and tear after being in use for so many years. Plus, it’s also possible that water or excess heat may have damaged its components.
However, given that we’re discussing a Samsung fridge after a power outage, it’s possible that the board was damaged by an electrical surge when the power was restored.
How to fix:
- Start by disconnecting the power supply to the fridge to prevent injury or electrocution.
- The inverter control board will be located somewhere towards the back of the Samsung fridge, hidden behind an access panel. To be sure, refer to the User Manual or any technical sheet to locate and identify that panel.
- Remove the screws that hold the panel in place, so you can gain access to the inverter control board. This board also has plenty of electrical connectors attached to it, which is why taking a photo is an excellent idea to use as a reference later.
- Disconnect the electrical connectors one at a time, and depress the tabs that hold the board in place.
- Place the new board in place, and refer to the reference photo that you took earlier when replacing the electrical connectors.
- Seeing as how there are a lot of different electrical connectors, it’s crucial to arrange them nicely before you replace the access panel that you opened earlier. That will prevent any further problems in the future, such as those caused by loose electrical connectors.