Question about Stiebel Eltron TEMPRA 24 Tankless Water Heater

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The heating element continues to heat even after the hot water tap is turned off thus popping the thermal switch. The red light is off on front of unit but you can hear the water heating. Any ideas?

Unit should not continue to heat water after hot water tap turned off. After several seconds it gets too hot and pops the thermal switch. Any remedies or thoughts on why this is happening would be appreciated.

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  • Stiebel Eltron Master
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Check the pressure control that switches the element on or off
if it is faulty then it switches on when the tap is turned on dropping the pressure but it will not recognize that the increase in pressure when the tap is turned off so it keeps heating the water.

Posted on Apr 07, 2015

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Posted on Jan 02, 2017

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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

blackmar
  • 235 Answers

SOURCE: The unit is no longer heating the water. The red

This will be a thermostat or element problem. The red light tells us that you have power to the unit. If you are handy you can test the thermostat and the element with a continuity tester. A voltmeter may also be used. This will tell you where the fault lies.

Posted on Mar 06, 2011

co7196
  • 3433 Answers

SOURCE: stiebel eltron 12 the thermal breaker keeps

Hello; I can't clain any formal training or education in electrical, But, I am a home owner and Mechanic so I'll give this a try. Thermal switches are in the norm based on the bi- metal concept/ Automotive flashers are in essence thermal switches. Of course there are electronic types that contain points and a coil, we can forget those since we aren't doing a car or truck, let alone turn signal. OK, moving on. As you know,excessive continuous heat generated by a excess load will destroy the bi-metal strip which serves as a bridge in the circuit. A defective flasher will increase in speed as it gets older and used heavily. Anyway, to the point. I've experience thermal switches that cease to function if trip too often or were tripped by an excessive load. Although resettable initially, it's thermal tolerance gets shorter and shorter until eventually you get irritated enough to ask someone on Fix-ya for some input. No problem. I reccommend replacing the breaker with or of same amperes. You may want to verify the load by checking the appliance data plate just in case it's the straw the breaks the circuit I hope I helped you and I apologize for the analogy used. Thanks for using fix-ya. Good Luck _Ned_t

Posted on Apr 04, 2011

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