A TCL Q6 that restarts by itself, will not stay on or turns off after a few minutes has a power, software or heat cause, and a methodical check finds it. Start with the power: plug the TV straight into a wall outlet, not a power strip or an extension cord, since a surge protector that is tired or overloaded drops the voltage and makes a TV restart. Check the plug and the cord for damage. A TV that restarts at the same moment as another appliance, such as an air conditioner, points to a circuit problem, and an electrician can check it.
The checks in more detail
Unplug the TV for a minute and hold the power button to drain it, then plug it back in. Check that the TV has air around it, because a TV stood in a tight cabinet runs hot and may shut down to protect itself; leave several centimetres on every side and clear the vents. Software causes follow. A TCL Google TV restarts when an app crashes the system, so check which app was running at the restart; clear its cache and update or reinstall it, in Settings, Apps. Keep the TV updated in Settings, System, About, System update, as TCL fixes boot loops with patches.
HDMI-CEC devices can switch the TV on and off, so a soundbar or console that sends commands may seem to make the TV restart; turn CEC off for a test. Check the Sleep timer and Auto power off settings, in Settings, System, Power and energy, since a timer you forgot turns the TV off. If the TV restarts in a loop with the logo, wait for it to finish, and if it will not, try a factory reset from the recovery menu, which erases everything, after consulting TCL support. Disconnect USB devices and HDMI devices one at a time to find a faulty one.
A TV that restarts with nothing connected, on a good outlet, after an update and a reset, has a failing power board, which TCL support can repair under warranty. Note when it restarts and what is playing. Check the date of purchase and the warranty, which for TCL TVs is typically a year, and keep the receipt. If the restart looks like a power board fault, support will ask for a video of the problem and the serial number from the label, so record the restart once and note the time before you call, which makes the call short.
Differential
Likely causes of “TCL Q6 QLED TV keeps restarting or will not stay on”, and how to tell them apart
- 1
A weak outlet or power strip
What separates it The TV restarts at random
How to confirm Plug straight into a wall outlet
- 2
Heat and blocked vents
What separates it It shuts down after a time
How to confirm Give it air and clear the vents
- 3
An app crash
What separates it A restart while an app runs
How to confirm Clear its cache, update or reinstall it
- 4
CEC or a sleep timer
What separates it The TV turns off by itself
How to confirm Turn CEC off and check timers
- 5
A failing power board
What separates it Restarts with nothing connected
How to confirm Contact TCL under warranty
Before you touch a setting
Record this first — changing settings destroys the evidence
- When it restarts
- What is playing
- The outlet and strip
- Devices connected
Try in this order
0 of 6 completedPlug straight into the wall
ReversibleNot a strip.
Unplug for a minute
ReversibleHolding power.
Give it air
ReversibleClear the vents.
Check apps and updates
ReversibleClear the failing app.
Turn CEC off
ReversibleAnd check timers.
Contact TCL
ReversibleIf it still restarts.
Model-specific
What is true of this model and not of its siblings
- Wall outlet
- Test without a strip.
- Heat
- A tight cabinet makes it shut down.
Stop boundary
When this stops being a self-service repair
- !If it restarts with nothing connected on a good outlet, contact TCL
- !If it is stuck in a boot loop, ask support about recovery
- !Check the warranty
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why does my TCL Q6 keep restarting?+
A weak outlet, heat or a crashing app.
Can CEC cause it?+
Yes.
Should I use a surge strip?+
Test without one.