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Physical damage (dropped, cracked, wet)
A dropped, cracked or wet hearing aid needs careful handling. Do not glue a broken case, bend a snapped wire or use a hairdryer to dry an aid. Water can damage both electronics and batteries. If the device is hot, swollen or badly damaged, stop using it and do not charge it. For a lightly damp, intact aid, a manufacturer-approved drying kit may help. A cracked shell, snapped wire or submerged rechargeable aid should be assessed by the clinic.
What type of hearing aid do you have?

Possible causes and checks
Dry a lightly damp, intact aid
A little surface moisture may be removable safely.
Read these checksHave a submerged aid checked
Water immersion may damage internal electronics or the battery.
Read these checksBook a professional repair
Physical damage needs professional assessment.
Read these checks