Question about Stiebel Eltron TEMPRA 12 Tankless Water Heater

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How do I reset the thermal cut out for my Dimplex FX20N bathroom heater?

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Atwood 6gal self ignite wont stay lit


Are you sure of model number, as it doesn't indicate electronic ignition. That said, if you do have electronic ignition, there is a small thermal cut-out in power line (brown wire) to thermostat terminal. It is inside the clear plastic sleeve and is connected between power wire and thermostat. Pull it apart and remove that thermal cut out temporarily and just connect wire direct to thermostat terminal where other end came off. Now try it, if it ignites and runs good, replace that thermal cut out. If no better, get back to me. That thermal cut out is a safety device in case of flame up, so be sure to replace it once diagnosis confirms it is defective.

Jan 06, 2013 | Atwood LP Gas Water Heater 6 Gal 96117...

1 Answer

High temperature thermal cut-out has tripped


Type, model, brand, age of water heater, and general installation of water heater are unknown.

1) Electric tank-type water heater: replace thermostats and test elements.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

2) Gas tank-type: replace gas control valve, clean air intake screen/ location varies by brand:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

3) Tankless: call service technician, or replace tankless with tank-type and save money long-term.

4) Add comment and describe water heater using label located on side of unit, and include what you are doing to 'reset' the thermal cut-out.

Jan 04, 2013 | Water Heaters

1 Answer

Bosch AE-9.5 keeps tripping the reset


All resets and breakers trip with high heat.
Do you mean the tankless unit is tripping the 40 amp circuit breaker?
Or the thermal cut-out, located on unit, is tripping?

Is this a new installation?
Or was the tankless working before and stop working?

Copy following link to check wiring.
AE 9.5 requires 40 amp breaker and 6 gauge wire.
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html

If the unit is tripping the thermal cut, -out, then product manual says to call Bosch or service technician.
Call Bosch 866-330-2729
http://waterheatertimer.org/pdf/Bosch-Powerstar-AE3.4-7.2-9.5.pdf
Thermal cut-out can trip if water flow is too low.
Try changing power selector screw from Hi to Lo so only 1 element is ON. See diagram page 6 of manual.
Adjust the 'outlet service valve:' The manual recommends that a ball valve be installed between hot outlet and faucet. Adjust the valve so more water flows to faucet.
Remove aerator, clean aerator, don't use low flow restrictions or low flow shower heads, replace leaky faucet cartridge on single-handle faucet.

Aug 29, 2012 | Bosch AE-9.5 PowerStar 1.5 GPM...

1 Answer

Whirlpool water heater tco limit lockout


locate the thermal cut out check for continuity with a voltage meter, replace if open, some have a manual reset button on them.

Jan 15, 2012 | Whirlpool Water Heaters

2 Answers

My Tempra, 29 Plus quit heating. I checked the breakers and they are ON. Where is the thermal cut-out located ? How is it reset? What temperatue should I set on the dial?


Take off front cover, on the top of the two cylinders in there (the heating system) there will be a small red button. That is the Safety Thermal Cut out, depress that red button. It is similar to a circuit breaker. If the red LED comes on when you turn on hot water at a sink then that was the problem. I have on that trips periodically. Its annoying but not enough to replace the part yet. Good luck.

Feb 07, 2011 | Stiebel Eltron TEMPRA 24 Tankless Water...

1 Answer

How can I reset the thermal cut off


Take off front cover, on the top of the cylinder(s) in there (the heating system) there will be a small red button. That is the Safety Thermal Cut out, depress that red button. It is similar to a circuit breaker. If the red LED comes on when you turn on hot water at a sink then that was the problem. I have on that trips periodically. Its annoying but not enough to replace the part yet. Good luck.

Dec 05, 2010 | Stiebel Eltron TEMPRA 12 Tankless Water...

1 Answer

How can I reset the safety thermal cut out from my tempra 12


the diagram on this page shows the safety thermal cut-off on top of the heating vessel on the right, inside the unit, remember to electrically isolate before opening.http://www.tanklesswaterheaters.com/tempra12.html

Apr 11, 2010 | Stiebel Eltron TEMPRA 12 Tankless Water...

2 Answers

We used to have hot extremely hot water in both bathrooms. One day, the water became warm and ultimately cold in one of the bathrooms. Now, the water is also freezing in the bathroom where the water used...


Your check-valve has most likely failed at the switch.
The flow check valve works by opening when you turn the water tap. When it opens it closes a switch which turns on your heating elements. When this switch fails you will still have water flow, but no heat. Titan has parts for this but you will need to call their service Dept.
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or call
Toll free support pesonnel hours (EST): Monday-Friday: 9:00am - 5:00pm
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They also have an online support operator during normal business hours here
http://www.titanheater.com/livehelp/livehelp.php?department=2

Mar 24, 2010 | TitanNet TITANTANKLESS. COM PRESENTS THE...

2 Answers

Bosch PowerStar125 won't heat and I can't get one element to work


It sounds like you have a copper canister unit. Ohm out the elements in that one canister. the directions are on the websight for bosch, or I can walk you through it. But you will need a digital multimeter to do this. If you have a blown element in that one canister, then the tco will not reset.

Jan 01, 2009 | Bosch PowerStar AE125 AE125 Whole House...

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