If you are struggling with a TCL Roku TV that keeps turning on and off by itself after a few seconds, then you are not alone.
Your TCL Roku TV probably becomes stuck on the red TCL Roku logo screen, and then turn off by itself again. It doesn’t stop there, the TV keeps restarting while it remains stuck in the same boot loop.
In this troubleshooting guide, I will show you 3 proven methods to fix a TCL Roku TV that keeps turning on and off by itself.
Whether you have the TCL 3 Series, TCL 4 series, TCL 5 series or TCL 6-Series, one of these methods will help you fix the issue.
Without any further ado, let’s get into it!
TCL Roku TV Keeps Turning On And Off
If your TCL Roku TV keeps turning on and off by itself, you need to reset it. To do that, locate the reset button on the TV. Press and hold it for 20 seconds, then release it. The TV will reboot and it will stop turning off by itself.
Now, let’s look at each fix (including the reset) in more detail.
1. Power Cycle Your TV
If your TCL Roku TV keeps restarting but remains stuck on logo and never boots completely, then the first thing you want to do is simply power cycle it. This is also known as a soft reset.
Here’s how to power cycle your TCL TV:
- While your TCL Roku TV is on and stuck in the reboot loop, unplug the power cable directly from the power outlet
- Leave it unplugged for 60 seconds
- While unplugged, press and hold the power button on the TV for 30 seconds
- Plug the TV back into the power source
- Turn it on using the remote controller or the power button on the TV
If it’s still stuck in the reboot loop, try the power cycle again but this time, wait for 10 minutes after unplugging it before plugging it back in. Just be patient, a lot of users were able to fix it by waiting for up to 10 minutes.
If the issue is caused by a software glitch, a simple power cycle (soft reset) will fix it.
Otherwise, if it’s still turning on and off by itself, then you need to reset it to factory settings (hard reset).
2. Perform a Hard Reset
If your TCL TV still keeps turning off and on by itself after a soft reset, then you need to perform a hard reset (factory reset).
From what I’ve seen, a lot of users who had the same issue were able to fix it by doing this.
That said, you can reset your TCL Roku TV to factory settings.
Since the TV won’t even boot up completely and you can’t access the settings, the only way to do this without a remote controller is to actually use the reset button on the TV.
If you hadn’t noticed, there’s a reset button on your TCL Roku TV close to the HDMI port (it has a label ‘Reset’ next to it).
Here’s how to reset TCL Roku TV that keeps turning on and off by itself:
- First, locate the physical reset button on your TCL Roku TV (at the back of the TV, usually close to the HDMI port). You will need a pin or any tiny object to push the button. This is the same for TCL 3 Series, TCL 4 series, TCL 5 series and TCL 6-Series.
- Once you locate the reset button, press and hold the button firmly for about 10-20 seconds while your device is powered on. When it shuts down, keep holding down the reset button until it powers on and shows the TCL Roku TV logo again. Then, you can release the button
- When the factory reset is complete, the TV will reboot twice and finally turn on without turning off again by itself
Now, go ahead and set up your TCL Roku TV again – select language, select mode of use, setup network connection or skip it.
Then, you are good to go.
3. Replace Faulty Capacitors
Another reason why TCL Roku TV keeps turning on and off by itself is damaged capacitors on the TV panel, usually on the main board. W
hat you simply need to do is replace the faulty capacitors with capacitors with same rating.
NOTE: Before you start, make sure you unplug your TV and leave it unplugged for 30 seconds. Also, press the power button on the TV for 30 seconds.
This will help discharge the capacitors before you open up the TV panel (they can be dangerous otherwise).
Now, here’s a step-by-step process of what you need to do:
- Remove the screws and open the back cover of the TV.
- Next, unplug all the cables going into the main board like the speaker cable, Wi-Fi module cable e.t.c
- Then, do a quick visual inspection to see if there is any faulty capacitor. It’s quite easy to see this.
If a capacitor is faulty, some of the signs you might see include:
- The capacitor is bulging at the top
- The capacitor is leaking
- Corrosive layer on one or both legs of the capacitor
NOTE: The capacitor may be faulty and not show any visual sign. Hence, the most accurate way to check in such case will be to use a multimeter to check the voltage, and compare it to the expected/labelled voltage of the capacitors.
If you see a wrong voltage reading on the multimeter, then it is faulty even if there is no visual sign.
Now, here’s how to remove the faulty capacitor(s):
- Carefully take note of the pin on the board that the capacitor is attached. You should do the removal with a soldering iron (do not force pull it out)
- With the heated soldering iron, carefully apply pressure from the back of the board on the pin for the faulty capacitor until it melts.
- Then, you can go ahead and remove it.
While replacing the capacitor, you should know the following:
- The new capacitor must be placed in exactly the same orientation as the old damaged one
- Ideally, you should replace the capacitor with a new one that matches the ratings (Voltage, Temperature and Micro farads). In case where you can’t get the exact value for the 3 ratings, you can get one that has voltage and temperature that is higher that that of the old capacitor but not lower. The micro farad can also be slightly higher, but not lower.
Once you have gotten the new capacitors, replace the old faulty one you removed using a soldering iron.
Remember: The capacitor needs to be placed exactly how the old one was placed.
- Once replaced, plug back all the cables you had disconnected from main board and assemble the TV back
- Now, plug in the TV, turn it on and the TV should fire up right away. The TCL Roku TV should now stop restarting by itself
If you can’t do this on your own, you can get it repaired. Depending on your location, it should cost between $100 – $200.
If that fixes the issue for you, great!
Otherwise, you will need to replace the main board and maybe the power board too.
4. Contact TCL Roku TV Support
If you have tried all the methods discussed in this guide, your TCL Roku TV should have stopped restarting on its own.
However, if the issue still persists, the only thing you can do is to contact TCL Roku for support.
The official help line is 1-877-300-8837.
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So I got tv programed turned off all cec and devices disabled and it will play for a wile then turns on and off