How would you troubleshoot a hearing aid that is whistling?Updated a month ago

If your hearing aid is whistling, there are a few things you can try to fix the problem. First, make sure that the hearing aid is properly inserted in your ear and that the ear dome is the right size for your ear canal. If the hearing aid is not inserted correctly, it can cause a whistling sound.

Next, check to see if the volume on your hearing aid is too high. If the volume is turned up too high, it can cause a whistling sound. Try turning the volume down a bit and see if that helps.

Also, check if there is a lot of earwax inside the ear canal, this can also cause whistling. If you find earwax, you can remove it with a soft brush or by using earwax removal drops.