Question about Stiebel Eltron TEMPRA 24 Tankless Water Heater

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No hot water from our tankless Tempra 24

We have 2 Tempra water heaters less than a year old. Both started giving problems. The red light would not come on on one the right side. When I tapped on the flow sensor it would start to heat. Off and on. The company sent me new sensors. I replaced the most troublesome one on the right. Cut the unit back on and now none of the sides work. No hot water at all. Breakers are on, circuit buttons on top are not tripped, water pressure is good and does flow through units, comes out cold at facet. Checked the filter, nothing found. Company is closed now through Monday. I am left with cold water until then or later! Any other advise you can give me to check out?

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  • erland_schul Dec 26, 2008

    I check that line yesterday. It is the filter located at the bottom of the plumbing connections, right? The slated screw with hex. Removed filter and washed it out. Could see nothing major.

  • erland_schul Dec 26, 2008

    Any other suggestions?



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Have you cleaned and rinsed out the pipes in the heater, use a gallon of viniger and 3 gallons of water and circulate it for a half hour thru the heater.

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Posted on Dec 21, 2009

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Check the inlet water line there should be a fine mess filterthat need to be cleaned it is on the inlet

Posted on Dec 26, 2008

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1 Answer

Tempra 24 installation. No hot water. No power led on fron cover. Is the led supposed to be on all the time or just when water is ran?


First, check the circuit breaker. Also, did you upgrade to heavier wiring and a double 60 circuit breaker when you had this installed?

Aug 15, 2014 | Stiebel Eltron TEMPRA 24 Tankless Water...

1 Answer

Should the red lights be flashing or be on steady


A solid light is what you actually want.
If you have a blinking light, the unit is unable to keep up with the flow of water.
Slowly turn on the hot water for your bathtub until the light starts to blink to find your limit. in other words your tankless heater is too small for your needs.
The 24 model is more for houses with showers or slower flow.
The 36 or higher model has 3 sets of heaters to be used with a bath, higher flow.

Jan 20, 2013 | Stiebel Eltron TEMPRA 24 Tankless Water...

1 Answer

No warm water at the tap


What kind of water heater do you have?
Gas or electric, tank or tankless or solar or condensing or hybrid etc
If the water hot at the water heater?
If water is hot at water heater, then you might have plumbing problem like crossover.
http://waterheatertimer.org/Crossover.html

Add a comment for possible troubleshoot.
Copy following link for tank-type electric troubleshoot.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Copy following link for tank-type gas water heater:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

Aug 18, 2012 | Stiebel Eltron TEMPRA 24 Tankless Water...

1 Answer

My shower is not hot enough unless I turn the cold water on in the tub at the same time


You might have a plumbing problem.
1) Faulty check valve
2) Crossover at single handle faucet
Read: http://waterheatertimer.org/pdf/No-Error-Code.pdf

Add a comment with your experience so others with same-similar problem can benefit.

Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Mar 31, 2011 | Stiebel Eltron TEMPRA 24 Tankless Water...

1 Answer

Tempra 12 the when you turn off the water the heating unit does not turn off then it gets hot and pop the reset


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.

Oct 31, 2010 | Stiebel Eltron TEMPRA 24 Tankless Water...

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