What is an appropriate action if a hearing aid begins to squeal continuously?

When a hearing aid begins to squeal continuously, it is commonly indicative of feedback, which can occur due to a few different reasons. Checking for a loose earmold is an appropriate action because a loose fit can allow sound to escape, leading to feedback that causes the squealing noise. Ensuring that the earmold is seated properly within the ear can help eliminate this issue.

Addressing feedback is crucial in maintaining the effectiveness of the hearing aid and ensuring the user can hear clearly without disruptive noises. By focusing on the fit and seal of the earmold, you can often resolve the problem without needing more invasive measures. Other options, such as changing the battery or resetting the device, may not directly address the issue of feedback caused by a loose earmold.