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Water Whisperer
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Discussion Starter #1
Not me whining about water heaters, I like 'em, but a new customer just called about her hot water taps making the water heater do a high pitched sound every time.

I've never had this before, I think.

Nat gas, 50 gal. Any ideas? I'm going there tomorrow.
 

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8,808 Posts
Test the pressure.
 

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Water Whisperer
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3,627 Posts
Discussion Starter #3
Pressure test at the tank, maybe needs a expansion tank.
 

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Water Whisperer
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Discussion Starter #6
I did a warrantee replacement on an A.O.Smith water heater the other day...
The heat trap dielectric nipples were squeling....
Yep, I remember doing that last century.
 

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Water Whisperer
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Discussion Starter #8
Thank you!

No work, huh?
 

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i've run into this a lot around here. debris in the prv causes everything to produce a high pitched hum. sometimes they're still working, just trapped some junk in them and need to be cleaned out. if not that, it could definately be those damned heat trap nipples. i usually replace them with brass ones when i install the heater because i've had them foul up on me before.







paul
 

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Water Whisperer
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3,627 Posts
Discussion Starter #11
It was the _ing mixing valve for that there hydroponic heating system. Easy 500.00 change-out.
 

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I've had a new water heater squeal like a 747 on approach. Pinhole in the element or something like that. Only does it while it's heating.
 
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