Very Noisy Water Heater - Plumbing - DIY Home Improvement | DIYChatroom

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing


Thread Tools Display Modes
Old 10-12-2010, 06:48 PM   #1
Join Date: Aug 2008
Posts: 175
Rewards Points: 163

Very noisy Water Heater

My 15 month old electric HWH recently began making a very loud sound like water rushing through a valve when it was heating the water. A plumber friend came over and determined the noise was coming from the lower heating element.
He pulled it out and it had some white mineral deposit on it, maybe 1/16" thick. He replaced it with a new one and all is back to normal. The element still heated the water ok but just don't understand why the deposit would result in such a loud noise. It was so loud that it woke me up at 1:00AM today.
Would like to understand how this can happen. My friend didn't know why so would appreciate any insight you can offer.


kb3ca is offline   Reply With Quote
Old 10-13-2010, 07:56 AM   #2
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 7,971
Rewards Points: 1,548

The mineral deposit insulates the element from the water somewhat but it develops cracks as the element heats up. Water seeping through the cracks in the layer of mineral deposits boils and sizzles, making noise.


The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit.
AllanJ is offline   Reply With Quote
Old 10-13-2010, 09:04 AM   #3
Join Date: Aug 2008
Posts: 175
Rewards Points: 163

Thanks Allen. I was thinking about this over night and somewhat concluded the same answer. My thoughts were that there was water between the mineral deposit and the element and since it was in a semi-enclosed space next to the element that the water was boiling and making that noise. However, my previous water heater never made any noise over 19 years in the same house and I have a water softener. Maybe the softener is going bad. Think I'll have the water tested for hardness to see what's going on
. Thanks for your response.
kb3ca is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
water heater drip kdange1 Plumbing 6 10-29-2014 05:26 PM
How to properly drain and flush a hot water heater? speedster1 Plumbing 9 04-17-2012 09:55 PM
A blocked water line causing water to loose heat? Snav Plumbing 6 05-07-2010 02:18 PM
Water heater pressure relief valve confusion Flt_Simulation Plumbing 4 07-11-2009 10:02 AM
No Expansion Tank for Water Heater vasanvasan Plumbing 4 12-13-2007 11:16 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1