Fix & connect
Most “broken” subwoofers are a pairing or settings problem, not a hardware one. Find your symptom and work through the steps in order.
- Pair a Samsung subwoofer to a soundbar
ID Set, blue-light codes, and manual pairing, step by step.
- Samsung subwoofer not working
No sound, no power, or dropouts — diagnose it in order.
- Samsung sub: blue light but no sound
What the solid blue light actually means.
- Pair a Sony subwoofer to a soundbar
Link button pairing for HT-A and SA-SW series.
- Sony subwoofer won't turn on
Power, standby, and reset checks in order.
- Reset a Sony soundbar
Soft reset, factory reset, and when to use each.
- Pair an LG subwoofer to a soundbar
The paperclip pairing button and what the LEDs mean.
- Connect an LG soundbar to a TV
HDMI ARC, optical, and Bluetooth — best to worst.
- Wireless subwoofer not working (any brand)
The universal diagnosis order before you buy anything.
- Subwoofer humming or buzzing
A constant hum is almost always a ground loop — fix it in order.
- Vizio subwoofer not working
Re-pair a Vizio wireless sub to the soundbar, and fix no-sound.