Table of contents(15)+
- 01The 30-Second Test
- 02Fix 1: Rule Out the Sleep Timer and Auto Power-Off Settings
- 03Fix 2: Check Whether Another Device Is Turning Off Your TV
- 04Fix 3: Inspect the Power Supply, Outlet, and Cords
- 05Fix 4: Rule Out Overheating
- 06Fix 5: Confirm It's a Shutoff, Not a Restart Loop
- 07Roku TV Shutoffs: Causes at a Glance
- 08When to Stop Troubleshooting and Contact Support
- 09Frequently Asked Questions
- 10Why does my Roku TV turn off by itself?
- 11Why does my Roku TV keep turning off and on?
- 12How do I stop my Roku TV from turning off automatically?
- 13Does my Roku TV have a sleep timer?
- 14Can another device make my Roku TV turn off?
- 15Related Guides
We've walked through this complaint across Hisense, TCL, Insignia, and Onn Roku TVs — including the Hisense R6, R7, and R8 series. The pattern repeats: a TV that worked fine for months suddenly shuts off on its own. Sometimes it happens once a day. Sometimes it happens every few minutes. In nearly every case, the cause is a setting or a connected device — not a broken TV.
The 30-Second Test
Before you try every fix, watch what happens the next time your TV shuts off.
Does the screen go fully black with no logo and no standby light? That's a true shutoff, and the fixes below apply.
Does the Roku logo flash back up a few seconds later? That's a restart, not a shutoff. It usually points to a pending software update instead.
If you're seeing a restart loop, read our guide on why a Roku keeps restarting instead of working through this list.
Before you start: is your remote part of the problem? Lost, dead, or buried in a couch — you don't need it to check these settings. HiRemote's free browser-based Roku remote works with any Roku-powered TV, including Hisense, TCL, Insignia, and Onn. Go to hiremote.app/hisense-roku-tv-remote, type your TV's IP address, and you're controlling it in 30 seconds. No app or account required.
Fix 1: Rule Out the Sleep Timer and Auto Power-Off Settings
Most Roku TVs include a sleep timer you — or someone else using the TV — can set from the settings menu. Many also have a separate automatic power-saving feature that shuts the screen off after a long stretch with no input or video signal.
Open your TV's settings and look for a section related to power, energy, or sleep timer. The exact wording and location vary by brand and software version. Check menus labeled System, Power, or Energy Saving if the first one you try comes up empty.
Turn off any sleep timer you find. If there's an automatic power-saving or no-signal shutoff option, disable it from the same menu.
When it won't help: if your TV turns off within a few minutes of active use, with every timer and power-saving option already off, a timer isn't your problem. Move to the next fix.
Fix 2: Check Whether Another Device Is Turning Off Your TV
Many Roku TVs support HDMI-CEC, a feature that lets a connected soundbar, game console, or streaming stick share power commands with your TV. When one of those devices shuts down or enters standby, it can tell your TV to turn off too — even though nothing touched the TV itself.
Check the settings on each HDMI-connected device for an option related to HDMI control, power sharing, or linked power. Turn it off on one device at a time and watch whether the shutoffs stop.
If you can't find the setting, unplug each HDMI device one at a time instead. Plug them back in individually to isolate which one is responsible.
When it won't help: if the TV still turns off with every HDMI device unplugged, HDMI-CEC isn't the cause.
Fix 3: Inspect the Power Supply, Outlet, and Cords
A shutoff that looks random can come from the power side instead of the TV's software. Check that the power cord is fully seated in both the TV and the wall outlet, then try a different outlet if one is nearby.
Avoid plugging the TV into a power strip or smart plug that runs on a schedule or a voice routine. Those cut power on their own timer, and that looks exactly like the TV turning itself off.
A loose or slightly damaged cord can also cause shutoffs that only happen when the cord gets bumped or the room warms up.
When it won't help: if the TV won't come back on at all, even after confirming power, that's a different problem. See our guide on a Roku TV that won't turn on instead.
Fix 4: Rule Out Overheating
Roku TVs include thermal protection that can shut the set off if it runs too hot. This shows up most in enclosed cabinets, against a wall with no gap behind the TV, or in direct sunlight.
Give the TV a few inches of clearance on every side, especially near the vents, and make sure nothing blocks airflow behind it. Dust buildup inside the vents traps heat over time, so a gentle vacuum of the back panel can help too.
When it won't help: if the room is cool and the shutoff happens within a few minutes of turning the TV on, overheating probably isn't the issue.
If one of the fixes above solved it, you're done. If you're tired of hunting for a lost or broken remote just to check a setting, there's a faster option. HiRemote's free iPhone app covers Hisense Roku TV (R6, R7, R8 series), plus VIDAA, Google TV, and Fire TV Edition. It pairs over Wi-Fi in 30 seconds and is free to download on the App Store.
Fix 5: Confirm It's a Shutoff, Not a Restart Loop
Some reports of a Roku TV "turning off" are actually a restart triggered by a pending software update. The screen goes black, then the Roku logo reappears a few seconds later.
That's a separate issue with a separate fix, covered in the 30-second test above. A true shutoff — black screen, no logo, no standby light — is what Fixes 1 through 4 address.
If you've confirmed a real shutoff and none of the fixes above worked, the cause is more likely a hardware fault than a setting.
Roku TV Shutoffs: Causes at a Glance
| Cause | How It Usually Shows Up | Fix |
|---|---|---|
| Sleep timer or auto power-save | Shuts off at a consistent time or after idle use | Fix 1 |
| HDMI-CEC from another device | Shuts off right after a soundbar, console, or stick powers down | Fix 2 |
| Power supply, outlet, or smart plug | Random timing, often tied to a schedule or loose cord | Fix 3 |
| Overheating | Happens after extended use or in a closed cabinet | Fix 4 |
| Restart loop (software update) | Roku logo reappears a few seconds after the screen goes black | Fix 5 |
When to Stop Troubleshooting and Contact Support
If you've worked through all five fixes and the TV still shuts off on its own, the issue is likely internal hardware rather than something you can adjust from a menu. That's especially true if the TV is still under warranty.
Check your TV's age and warranty status before opening anything yourself, since that can affect your repair options. Roku's own support site has general troubleshooting steps if you want a manufacturer-side second opinion: support.roku.com.
Frequently Asked Questions
Why does my Roku TV turn off by itself?
Your Roku TV most often turns off by itself because of an active sleep timer, an automatic power-saving setting, or another HDMI-connected device sending it a shutdown signal through HDMI-CEC. Loose power cords, a shared power strip on a schedule, and overheating cause it less often. Check the sleep timer and any connected HDMI devices first, since those two causes account for most reports of a Roku TV shutting off unexpectedly.
Why does my Roku TV keep turning off and on?
A Roku TV that turns off and back on, rather than staying off, is usually restarting instead of shutting down — look for the Roku logo appearing briefly during the cycle. That pattern points to a pending software update or a memory issue, not a power problem. If you see the logo each time, the fix is different from the shutoff causes covered on this page.
How do I stop my Roku TV from turning off automatically?
Start by turning off any sleep timer and automatic power-saving option in your TV's settings menu, since those cause most automatic shutoffs. Next, check whether a soundbar, game console, or streaming device connected by HDMI is set to control your TV's power, and disable that option on the connected device instead. If shutoffs continue after both checks, move on to power and overheating causes.
Does my Roku TV have a sleep timer?
Most Roku TVs include a sleep timer you can set from the settings menu, along with a separate automatic power-saving feature that isn't the same thing. The sleep timer turns the TV off after a set period you choose, while the power-saving setting shuts it off after long inactivity with no signal. Check both settings, since either one can explain an unexpected shutoff.
Can another device make my Roku TV turn off?
Yes — a soundbar, game console, or streaming stick connected by HDMI can turn your Roku TV off if it uses HDMI-CEC, a feature that lets linked devices share power commands. When one device shuts down or enters standby, it can send that same command to your TV. Check each connected device's settings for an HDMI control or power-sharing option, and disable it if you don't want that behavior.
