Planning a cold‑weather trip and wondering if your heated vest is up for it? Heated vests are designed to keep you warm, comfortable, and worry‑free. But like any bit of tech, things can occasionally go wrong. If your heated vest stops working, don’t panic—most issues are easy to sort without calling customer service or replacing the vest.
1. Check the Power Connection
Start with the basics. Make sure the battery is fully charged and firmly connected to the vest’s power cable. A loose connector is one of the most common reasons heated vests won’t turn on.
Quick tip
Unplug and re‑seat the cable, check for kinks, and wipe the battery contacts with a dry cloth.
2. Inspect the Battery
Charge the battery with a known working cable and wall adaptor. If it won’t hold charge or feels unusually warm while charging, it may need replacing. Avoid third‑party batteries not designed for your heated vest model.
Charging advice
Let the battery cool for 10–15 minutes after a full charge before reconnecting it to the heated vest for best performance.

3. Test the Power Button
Many heated vests require a long press to activate. Hold the button for 3–5 seconds. If no lights appear, try again after confirming the battery is charged and properly seated.
4. Examine the Heating Zones
Put the vest on and give it 30–60 seconds. Heating zones—usually back and chest—need a moment to warm. If only part of the vest heats, you may have a wiring issue or uneven power delivery.
Diagnostic step
Cycle through low/medium/high. If LEDs respond but there’s no warmth, the issue may be with the heating elements.
5. Try Another Battery (If You Have One)
If you own a compatible spare, swap it in. This quickly shows whether the fault lies with the heated vest or the battery.
6. Look for Visible Damage
Check inside and out for wear, cuts, or damage—especially around the power port and heating panels. If the vest was washed, confirm the battery was removed first. Moisture can cause electrical problems.
Washing reminder
Follow the care label, remove the battery, cover the port, and let the heated vest fully air‑dry before use.
7. Reset the System
Some heated vests benefit from a soft reset: disconnect the battery for 60 seconds, reconnect, then power on again to clear internal error states.
8. Check for Indicator Lights
Most heated vests include LEDs for power and heat levels. If lights don’t respond, power may not be reaching the system. If they blink in a pattern, check your manual—patterns can indicate error codes.
LED basics
Solid = on; slow blink = level change; rapid blink = fault (see your heated vest manual).
9. Still Not Working? Try These Next Steps
If nothing above works, consider whether it’s a product defect, battery age, or external damage.
For heated vests still under warranty, trusted brands like GOKOZY usually offer support. To speed things up, prepare:
- Your order number or receipt
- Clear photos or a short video of the issue
- Notes on how the vest was used, charged, washed, and stored

Explore GOKOZY’s heated vests to find reliable options backed by responsive support and quality service.