u have a circulating pump on the heater.

来源: borisg 于 2024-10-17 03:46:40 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (36 bytes)
回答: 热水器发噪声怎么处理？ 由 ChurchDoris 于 2024-10-16 19:25:38

the pump is probably dying.

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