Question about Amtrol ST-5-C THERM-X-TROL ASME Expansion Tank, 2 Gallon

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Short buzzing noise every few seconds from hotwater tank

Short buzzing noise every few seconds all night and day is driving me mad can you advise what the issue is ?

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I have this problem on my Amtrol ST-5-C Therm-X-Trol ASME, the buzzing sounds seems getting louder. I had to contact the local Amtrol dealershop and they got it replace. Hope this helps.

Posted on Jun 16, 2013

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It maybe that there is a small leak at the connection.try to remove the tank and put teflon tape on the connection.this may fix the problem.if this does not fix the problem,it may be possable that the amtrol has a pin hole in it.this may hve to be replaced.good luck with your project

Posted on Sep 29, 2009

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