Charger Red LED

How to Fix It

1. Try a different USB-C cable.

   Cheap or data-only USB-C cables are surprisingly common and cause silent charging failures.
   Use a known-good cable from a recent phone or tablet.
   If a different cable lights green, the original cable was the issue.

2. Try a different wall adapter.

   USB hubs and laptop USB ports often deliver less current than the puck wants.
   Plug the puck into a wall adapter rated 5V / 1A or higher.
   A phone charger usually works.

3. Reseat the ring.

   Lift the ring off the puck.
   Wipe both the ring's inner contacts and the pogo pins on the puck with a dry microfibre cloth.
   Place the ring back on so the contacts align with the pins.
   The puck is magnetic — it should snap into place.

4. Clean the contacts.

   Skin oils, sweat, and lotion build up on the inner ring contacts over months of wear.
   Wipe firmly with a soft cloth and a tiny amount of isopropyl alcohol.
   Let dry fully before placing on the charger.

5. Inspect the pogo pins.

   Look at the small spring-loaded pins on the puck.
   They should sit slightly proud and depress smoothly when pushed.
   Stuck pins lose contact with the ring.
   Gently exercise each pin with a wooden toothpick — never metal.

6. Try a different USB port.

   Plug the puck into a different wall outlet, a different room.
   If a different outlet works, the original outlet or its breaker is the issue.
   If multiple outlets fail, the puck or cable is at fault.

7. Contact Oura for a new puck.

   If cable, adapter, contacts, and pins all check out but the LED still does not light green, the puck has failed.
   Oura sells replacement chargers and ships warranty replacements for newer rings.
   Contact support.oura.com with the order number.