Description
Diagnose, maintain, and repair hearing aids, earmolds, and assistive listening devices; fabricate and modify custom shells; perform performance testing and adjustments; and educate users on care and operation.
- • Inspect and troubleshoot hearing aids to identify mechanical or electronic faults.
- • Fit hearing aids and earmolds for comfort and retention; make physical and acoustic adjustments as directed by audiologists.
- • Clean devices, remove wax and debris, and replace domes, wax guards, tubing, and batteries.
- • Read work orders, audiograms, and device specifications to determine required parts, settings, and tools.
- • Solder and replace microphones, receivers, battery doors, controls, and flex leads under magnification.
- • Assemble, re-shell, or fabricate earmolds and custom shells using acrylic or silicone and precision hand tools.
- • Take ear impressions safely and prepare molds for casting or 3D scanning and printing.
- • Drill vents, bore tubing, and shape shells or earmolds to prescribed contours and sizes.
- • Glue and UV-cure shells and seals; ensure proper moisture and dust protection.
- • Lay out and mark component placement, venting, and cuts using templates, calipers, and microscopes.
- • Test device performance in a hearing aid test box to verify output, frequency response, distortion, and battery or charging function.
- • Perform firmware updates and basic device configuration with manufacturer software per clinic protocols.
- • Polish and finish earmolds and shells; smooth and buff edges for comfort and appearance.
- • Maintain, calibrate, and repair lab and test equipment such as UV units, micromotors, vacuums, and couplers.
- • Instruct patients in insertion, operation, cleaning, charging, and routine care of hearing aids and accessories.
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Healthcare & Human Services
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Tasks & skills:
O*NET occupational data (work activities, skills, knowledge).
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This site includes information from O*NET by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under the CC BY 4.0 license. Career Clutch has modified some of this information for student readability. USDOL/ETA has not approved, endorsed, or tested these modifications. O*NET® is a trademark of USDOL/ETA.
Last reviewed: Jan 2026
