Symptoms
- No lights or display when powering on
- Power light flickers but soundbar doesn't fully start
- Remote power button doesn't work but front panel does
- Soundbar turned off unexpectedly and won't restart
Likely causes
- CommonPower cable or adapter not fully connectedA loose power connection can prevent the unit from starting.
- CommonOutlet or power strip not providing powerA dead outlet or a power strip switched off will leave the soundbar unresponsive.
- CommonRemote battery dead or remote out of rangeIf only the remote power button fails, the issue is the remote, not the soundbar.
- PossibleInternal power supply faultA failed internal power supply component prevents the unit from starting even with good outlet power.
- Less commonFirmware corruption from a failed updateA failed software update can leave some soundbars unresponsive until a factory reset.
What to do
- Check that the power cable/adapter is fully plugged into both the soundbar and a working outlet.
- Test the outlet with another device (like a phone charger) to confirm it's providing power.
- Try the power button on the soundbar itself rather than the remote to rule out a remote issue.
- If using a power strip or surge protector, make sure it's switched on and its own indicator light is lit.
- Unplug the soundbar, wait 60 seconds, then plug it back in and try powering on again.
- Check the manual for a reset procedure (often holding the power button for 10+ seconds) if the unit is fully unresponsive.
- Try a different power outlet entirely, in case the original outlet or its circuit is the problem.
Tools and parts
Power adapterSearch: “soundbar power adapter replacement”
When to call a pro
If the soundbar won't power on with a confirmed working outlet and cable, the internal power supply has likely failed and needs professional repair or replacement.
Safety
Use caution
Never open the soundbar's internal power supply yourself; if outlet and cable are confirmed good, leave internal repairs to a professional.