Hi 19ted43,
We have an article we'd like to share with you that contains some steps you can try. We'll place the link with the steps below.
If your left or right AirPod isn't working - Apple Support
If there's no sound in one AirPod
1: Make sure that your charging case is fully charged.
2: Place both AirPods in your charging case and let them charge for 30 seconds.
3: Open the charging case near your iPhone or iPad.

4: Check the charge status on your iPhone or iPad to make sure that each AirPod is charging
.
5: Put both AirPods in your ears.
6: Play audio to test both AirPods.
7: If an AirPod still isn't working, reset your AirPods or contact Apple Support.
Once you have tried all the steps, including number 7 and reset your AirPods, if they are still not working, use this link above for contacting Apple Support.
Take care!