Question about Stiebel Eltron TEMPRA 24 Tankless Water Heater

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Shower is hot- bathtub is not- tempra tankless hot water heater

Hot water is not a problem anywhere but my bathtub- the shower is hot. my other bathroom, the bathtub is hot and the shower is hot. Thoughts?

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  • Stiebel Eltron Master
  • 5,089 Answers

1) Test for crossover:
http://waterheatertimer.org/Crossover.html

2) Add a comment and say what you discover

Posted on Dec 30, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

  • 308 Answers

SOURCE: hot water tap only warm water in bathroom but hot in kitchen

Usually when you are having a problem at only one fixture, and not any others it is a sign that you have a faulty fixture. Hope this helps.

Posted on Jul 16, 2009

SOURCE: tempra 12 the when you

I am a free answerer, and I specialize in giving you resources for free.
The paid answerers may have a person who knows your product and the problems associated with your model.

I only see the questions where people have not paid.
Each day I see 20-25 unanswered questions about tankless water heaters.
And the day before, the same number of unanswered questions about tankless products.
The number of questions shows the complexity of the machines, and the inability of the manufactures to take care of their customers.
The manufacturer will refer you to the installer.

http://www.thetankatwaterheaterrescue.com/forums/forum3/

There are not many ways a do-it-yourselfer can fix a tankless.
In contrast with tankless, tank-type water heaters have generic troubleshoot steps that lead to a quick diagnosis, and same-day repair of almost any brand. Most times a tank-type heater repair can be DIY.

Posted on Oct 31, 2010

packrat1948
  • 528 Answers

SOURCE: Specifications sheet for Stiebel Eltron Tempra 24

hope this is what you need.
http://www.stiebel-eltron-usa.com/techdata_tempranew.html

http://www.stiebel-eltron-usa.com/pdf/install_tempra_tempraplus.pdf

Posted on Feb 04, 2011

kel1guy2002
  • 3740 Answers

SOURCE: I installed a dhc tankless heater, but when I open

Hi and welcome to FixYa, I am Kelly.

What is happening is that your cold water flow is greater in volume (gals per min) than your hot water. So when you open the cold water it is mixing with the hot water inside the faucett or shower plumbing and actually reverse flowing back into the hot water heater plumbing. The reverse flow slows the water flow sensing turbine inside the heater and it is thinking that there is not any water flow. (There isn't actually due to the equalization of water pressure when you open the cold water faucett) Since this is a safety feature of the tankless heater to keep it from overheating, it shuts off.
Somewhere in the hot water plumbing there is a major restriction. It may very well be the internal plumbing of the tankless hot water heater or the flow detector design.

There are 2 ways to correct this. The easy way would be to restrict the available cold water flow. You can do this by installing another shut off valve inline with the cold water plumbing and just not open the valve all the way. You would have to adjust the setting so that the hot and cold water can be on at the same time and the hot water heater stays on. The hard way is to locate the hot water flow restriction and eliminate it.
It is possible.... if you have a flow restrictor in a shower head or a screen in a faucett areator that they are partially clogged. Clean any flow restrictors and screens then see how the hot water heater performs before you start modifying plumbing.

Thanks for choosing FixYa,
Kelly

Posted on Apr 10, 2011

heatman101
  • 43501 Answers

SOURCE: my tempra20 plus will only deliver 90egree water

Hi,
Is this a new install? Or is it an existing heater that all of a sudden went cool?

If it is new, then the water flow is too much and you need to cutback on the amount of water that can flow through...
If it is an existing install then a heating element has gone bad...

heatman101

Posted on Aug 16, 2011

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