Roku Low Power / Insufficient Power – How to Fix?

Roku, one of the most renowned streaming players, has displayed a low power error, per some Roku users. If you are somebody who has their Roku streaming stick plugged into their TV’s USB port and is facing a similar issue of Roku Low Power or insufficient Power, we have some solutions for you! 

How to Fix Roku Low Power?

Start by trying to plug in your Roku in another USB port in your TV because it is often observed that different USB ports have different power capabilities.

Roku Low Power

Try using the Roku power cord.

One of the most straightforward fixes can be to use a Roku power supply adapter. You can try unplugging Roku from your TV’s USB port and plug it in the Roku power supply adapter and further plug it into a wall outlet.

Another critical factor is to make sure that the charging cord or cable you are using meets the power need of your device because if it does not meet the power specs of your device, it might not work.

So, the next time you see an online ad to buy a charging cable at a lower price, please remember that they might not provide the required amount of Power.

Power consumption of Roku

Statistically, Roku sticks and streaming players have been observed to use a small amount of energy and do not have a heavy power demand. For instance, watching any 4K content on a Roku streaming device will use about 3 to 4.5 watts.

Your Roku will consume some power even when it is not directly being used, or you are not streaming anything on it because there is no option to switch off your Roku. It consumes around 2 watts of energy because it is plugged directly into a wall outlet and uses electricity.

The USB port provided on the back of your TV is responsible for producing Power. However, it can only produce a limited wattage. The broad power output range varies from 2.5 to 7.5 watts, depending on your selected TV version. You are provided multiple USB ports on the back of your Roku TV, but not all can produce the same outage.

The more significant issue comes into play when the power outage and the supply do not match, just like when the TV’s USB port only offers you 2.5 watts of Power for your Roku ultra, which needs a hefty 4.5 watts for streaming efficiently. 

You can avoid this issue by plugging the Roku Power cord/adapter provided within the device’s box directly into the main source power outlet, which would provide more than enough Power required for the Roku Ultra to stream smoothly.

There is always the option of plugging your Roku into a USB port of different power capabilities to see if that fixes your problem. 

As mentioned, Not all USB ports offer the same power outage, and there are good chances that switching and plugging into a port with similar output will get your problem resolved.

How to Know if your Roku is running Low on Power

You can find multiple signs that would help identify if your Roku device is not getting the appropriate power supply.

The best way to identify this is an automatic pop-up alert on your TV stating “low power” or Insufficient power.” This would be the easiest way to figure it out.

The other evident way to know if your Roku device is getting enough Power is to look at the device itself. If there is a constantly blinking red LED light, it would indicate an inadequate power supply. Keep on the lookout for a small blinking light on your Roku.

The sure shot way of figuring out if your Roku is getting enough Power is if it constantly crashes and is unstable at times or becomes unresponsive in the middle of a task. 

Your Roku will act in a lot of unresponsive ways and will be causing problems if it faces low Power problems. Using a recommended power supply will ensure your Roku works like a brand-new product with no glitches or issues.

A multitude of times, it is seen that if your Roku is blinking red, you will notice it behaving strangely and unresponsively. These issues are intertwined and move hand in hand.

Clearing the cache of your Roku device

Sometimes it gets difficult to understand the main problem why your Roku is Acting in a different than usual way, why it keeps constantly crashing out of the blue, or why it has become slower by day.

People usually link these issues with power supply problems or defective products. Still, it is a very slight issue that can be addressed in a few minutes without having to be an expert.

Suppose you have plugged your Roku into a recommended outlet with an adequate power supply with the recommended adapter or cord. In that case, you still face issues like it becoming unresponsive and sometimes crashing.

You might have to try clearing the cache. It takes only a few seconds, makes your streaming experience even smoother and better, and makes your Roku work as smooth as butter.

There have been many prominent issues of Roku functioning involving Buffering and lagging of stream or blue screens or even getting a frozen screen at times. These problems can be instantly resolved by clearing the cache and restarting your device.

If at any of the times you experience these problems. You can resolve it by following these simple steps on your remote locate and pressing the HOME button to go to the main screen.

Take a breather for a couple of seconds and then follow these combinations of buttons to reset your device’s cache easily(make sure to press the buttons non-stop, one after another ). Press the Home Button 5 times, followed by Up a single time, Rewind 2 times, and Fast Forwards twice.

The device will do the rest of the process by itself. It might take some time, and you might see it reboot a couple of times which is normal. When your home screen is displayed, let it stay for some time before you use your Perfectly Fine and smooth Roku again.

If you’re experiencing any of these, start pressing the Home button on your remote to get to the main screen.

Following these steps would help clean the cache of your Roku, and that’s it! You can now use your Roku just like previously, with hopefully no more problems.


Suppose there is a constant pop-up on your TV or a small blinking LED light on Your Roku. It indicates “low Power,” and it also means you have plugged into a USB port of your TV which does not supply adequate Power!

You have to switch the power supply from the Port to the recommended Roku power cord/adapter, which plugs directly into the wall socket and provides enough Power.

Always be on the lookout for clear indications like constant crashes, frozen screens, unstable responses, glitchy working, heating of the device itself, and most importantly, pop-up alerts. They are all signs of Low Power.

If you have used the recommended power supply methods and still face some of these issues regularly, you just might have to clear the cache of your Roku to make it run smoothly.


Why do I get pop-ups of insufficient Power?

If you constantly get “insufficient power” or “Low Power” pop-ups on your TV, in most cases, it is because you are powering your Roku directly through the TV USB port. Switch this by plugging your Roku directly into a wall socket with recommended cable/ adapter provided in the box, and your device should work just fine.

Is it safe to use a different power adapter Roku?

It is recommended to use the Power adapter/cord provided in the box of your Roku. However, It is safe to use a power adapter that provides a specific voltage of 5VDC or 12VDC for a Roku. The current running through the adapter can be considerably higher than the stated unit. Which, in some cases, would cause overheating or crashing at some point.

Other Troubleshooting Queries

  1. Why Samsung TV Won’t Turn On.
  2. What Does TV 14 Mean?
  3. Samsung TV won’t connect to WiFi
  4. No Sound in Vizio TV.

If you have a different approach to resolving these issues or some ways that worked for you, let me know in the comments below.

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