- Home


Air Conditioners | Dehumidifiers | Dishwashers | Disposals | Dryers | Freezers | Humidifiers | Ice Makers | Microwave Ovens | Ovens, Ranges, Stoves | Refrigerators | Trash Compactors | Washers | Water Filters

FAQs | Contact | Apprenticeship | Parts | Model Number Help | Newsletter | Beer

Find Appliance Parts & Diagrams Here
Enter a model number, part number, type of appliance, brand, or even a part description.

365-day return policy on all parts ordered through this site!


 Moderated by: RegUS_PatOff, appl.tech.29501 Search Our Sites for More Info!
New Topic Reply Printer Friendly
Not Enough Hot Water  Rate Topic 
AuthorPost
 Posted: Mon Feb 20th, 2006 08:31 pm
  PM Quote Reply
1st Post
wizguber

 

Joined: Tue Sep 6th, 2005
Location: Bristow, Virginia USA
Posts: 20
Flavorite Brew: Rolling Rock
Status: 
Offline
Greetings Samurai Appliance Gurus !

I come again with questions about my hot water tank.  It's an AO Smith, 50-gal unit fed with natural gas.  Unit was installed in 1999 with new house...yeah the warranty just expired.  To get nice hot water, have been turning up the thermostat little by little.  Currently, is set at the absolute max temp, but the hottest water we get out of the tap (closest sink) is 143F.  With extra folks in the house this weekend, noticed that we ran short of hot water sooner than normal. 

The pilot and burner all look good.  Nice clean flame, good distribution.  Heater flame seems to cycle on/off just fine.  Went to Smith's website and technical bulletin says for low temps to "check the thermostat" and the dip tube.  Short of draining the tank and making a hell of a mess, is there an easier way to do these things ?

Also, at ~7years old, do you folks recommend spending the $100 for a new thermostat (from Smith's website)?  And, if I'm going to take the time to drain the tank and do repairs, should I consider any other overhaul items?

Thanks in advance.

Dave

 

 

Back To Top PM Quote Reply  

 Posted: Mon Feb 20th, 2006 10:29 pm
  PM Quote Reply
2nd Post
ratherbfishin



Joined: Wed Feb 15th, 2006
Location: Georgia USA
Posts: 104
Flavorite Brew: ice tea
Status: 
Offline
check your dip tube,  its plastic and can deteriorate over time. would explain  prematurely running out of hot water.  check faucet screens at  your sinks for crumbled plastic. it will  look similar to powder laundry detergent.  it causes incoming water to be dumped into top of tank rather than the bottom.  the tube can be purchased at a  plumbing or home improvement store, it's inexpensive.   because you're saying the temp starts at 143 degrees it sounds as if you're heating ok.    damaged dip tube would cause  incoming  cold water mixed with outgoing hot water at top of heater, reducing the temp.    

Last edited on Mon Feb 20th, 2006 10:45 pm by ratherbfishin



____________________
"ratherbfishin"
Back To Top PM Quote Reply

 Posted: Sat Feb 25th, 2006 04:31 pm
  PM Quote Reply
3rd Post
russotto
Grasshopper
 

Joined: Sun May 15th, 2005
Location:  
Posts: 9
Flavorite Brew: 
Status: 
Offline
This guy seems to like water heaters as much as the Samurai likes beer: http://www.waterheaterrescue.com/.

What worked for me when I had a similar problem is a "power flush". Set the heater control to pilot (or off). Shut off the inlet and open a hot tap. Drain the tank. Close the hot tap and open the inlet. Now your tank is part-filled with compressed air. Open the drain valve -- a lot more sediment gets blown out of there than with a regular drain. Close the drain valve again and open a hot tap to get the air back out of the system. Once the air is out, turn the heater back on.

Back To Top PM Quote Reply  

 Posted: Sun Mar 12th, 2006 06:05 pm
  PM Quote Reply
4th Post
MrTeach
Grasshopper
 

Joined: Sun Mar 12th, 2006
Location:  
Posts: 1
Flavorite Brew: 
Status: 
Offline
Wow...that seems like you want to give me the keys to the palace...you trust me to blow compressed air through my water tank and out the lines and not find my water heating flying through my house and 150 feet into the air?  IF I follow your directions I'll be okay, what if I forget one part of your directions like the typical husband who is not mechanically inclined and wants to fix the water heater so his wife doesn't get just 4 inches of hot water in her tub...my house was built in 1989, and most of our city water comes from wells, and it is very hard water...I drained it last year, and it didn't seem to do much at the time...that's the problem...

Back To Top PM Quote Reply

 Posted: Sun Mar 12th, 2006 09:10 pm
  PM Quote Reply
5th Post
kdog
Fellow, Academy of Sublime Masters of Appliantology


Joined: Sun May 8th, 2005
Location: Calgary, Alberta Canada
Posts: 2560
Flavorite Brew: dickens cider
Status: 
Offline
if your tank is 7 years old,and you have extremely hard water,chances are good that it has a build up of minerals around the bottom(since minerals deposit when heated) as well as around the thermostat rod. this causes the thermostat to react to temperature changes more slowly(since the deposits act as an insulator), you have a couple of options here- you can simply know this and work around it by running your hot water until the burner fires up which will heat the tank in approx 20 min- then you should have plenty of water available for bath/shower/laundry etc. - you can replace the affected parts which will result in about the same labor cost of having the tank replaced(still leaves you with an old tank) or you can replace it outright. i would try to live with it as it is by forcing it to start prior to using large amts of hot water,and keep your eye peeled for a sale on a decent replacement tank so you can replace it eventually.



____________________
Can Ye spare some 'cutter me brutha ?

http://web.me.com/zenzoidman/kdog/
Back To Top PM Quote Reply  

 Posted: Fri Mar 31st, 2006 01:53 am
  PM Quote Reply
6th Post
The Seven
Master Appliantologist
 

Joined: Tue Mar 29th, 2005
Location: Canada
Posts: 181
Flavorite Brew: 
Status: 
Offline
The 40 gal gas water heater was unable to supply enough hot water.
The old dip tube is crack.
The original joints were all soldered and needed to be cut.
A new two-end compression joint is used for easy connection without soldring.
Replaced with a new dip tube and the water heater returns to normal.

Attachment: Dip_Tube DSCN4142.jpg (Downloaded 41 times)

Last edited on Fri Mar 31st, 2006 03:36 am by The Seven



____________________
The Seven
Back To Top PM Quote Reply

 Posted: Wed May 17th, 2006 01:30 pm
  PM Quote Reply
7th Post
curtiscrowell
Senior Apprentice Appliantologist
 

Joined: Mon May 15th, 2006
Location:  
Posts: 6
Flavorite Brew: 
Status: 
Offline
Note that AO Smith had a recall on dip tubes several years ago (less than 10). The old tubes disintegrated.  White plastic, symptoms were as described above with seemingly insufficient hot water.

Back To Top PM Quote Reply  

Current time is 05:09 pm Tell a friend about this page... all your other friends are doing it!  
- > Do-It-Yourself Appliance Repair Help > General Appliance Topics > Not Enough Hot Water Top



Find Appliance Parts & Diagrams Here
Enter a model number, part number, type of appliance, brand, or even a part description.

365-day return policy on all parts ordered through this site!

FAQs | Contact | Apprenticeship | Parts | Model Number Help | Newsletter | Beer

Your Sometimes-Lucid Host:
- Home
"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly, spilling my steaming entrails onto your floor."


UltraBB 1.17 Copyright © 2007-2008 Data 1 Systems
Page processed in 0.1198 seconds (36% database + 64% PHP). 26 queries executed.

Web Analytics