똑똑똑똑똑똑똑소리 열팽창 수축에의한 소리는 구분가능합니다...

 

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비슷한증상 게시글 링크 올립니다...

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  2. https://cafe.naver.com/nfsclub12/1396939?art=ZXh0ZXJuYWwtc2VydmljZS1uYXZlci1zZWFyY2gtY2FmZS1wcg.eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjYWZlVHlwZSI6IkNBRkVfVVJMIiwiY2FmZVVybCI6Im5mc2NsdWIxMiIsImFydGljbGVJZCI6MTM5NjkzOSwiaXNzdWVkQXQiOjE3Mzk5MzUyNzk5OTZ9.bIl6OO3Xb32wErP6Z-cRAj4b9_6TupXQk94gKE5ZIFA