Question about Stiebel Eltron TEMPRA 12 Tankless Water Heater

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Electric Water Heater Problem

My Electric Water Heater Doesn’t Heat Water. What Should I Do?

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When an electric water heater fails to heat water, either the power to the water heater has been interrupted or there is a problem with the controls or the heating elements. 1) Be sure electricity is being delivered to the appliance. Check the main switch on the water heater and the circuit breaker (or fuse) that serves the water heater. 2) Check the high-temperature cutoff in the water heater. Open the panel, and push the reset button. 3) If these steps don’t solve the problem, call an appliance repairperson.

Posted on Aug 27, 2008

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Why no power to pump?


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Does the water heater and furnance run on gas and electric?


If the units are in a RV then yes, they both may run on gas and DC (battery power). The furnace requires gas to provide heat and DC power to run the fan. A water heater may be gas or electric, but if gas, it requires gas to heat and DC power to ignite. If the water heater is electric it requires AC power to heat.

Oct 15, 2015 | Water Water Heaters

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Ticking sound top 1/3 of AOSmith Electric Water Heater


Replace heat trap nipples or inserts?
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#heat-trap
Factory Heat traps save $2-$9 per year but can cause noise, and you can make your own heat traps.
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html#heat-trap
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http://waterheatertimer.org/How-to-maintain-water-heater.html
Add a comment and say what you find

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1 Answer

Can I run the hot water heater with a generator


Yes.
Ordinary electric water heater can run on any voltage from any direction (excluding volt/amp ratings below what can heat element coil).

Voltages include single-phase, split phase, and 3-phase residential/commercial voltages with either 50 or 60 Hz.
http://waterheatertimer.org/How-to-wire-water-heater-for-120-Volt.html
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html#3-phase

Install line fuse.
30 amp fuse would be required to prevent wires from overheating, and eliminate fire hazard.

This information does NOT apply to energy-smart electric water heater with box on top of heater, or newer energy smart with electronics, or to hybrid water heaters, or heat pump water heaters with delicate electronic circuitry.

Why it works like this:
Ordinary electric water heater thermostats are mechanical bi-metal switches and respond to tank temperature, and are not operated by electricity.
Ordinary generic elecrtic water heater thermostats switch electricity on-off using mechanical bi-metal switch.
Heat elements are simple coil of thermal wire that gets hot when voltage is applied.
The element will get hot when power is applied.

Oct 29, 2012 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

No hot water


10-22-12
Copy following links to help identify product and download possible troubleshoot resources:

Tank-type gas
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html

Tank-type electric:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Rheem tankless:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Other types of water heaters include boiler, tankless electric, indirect, solar-assisted, solar, hybrid electric, heat pump, wood-burning, gas hybrid, 3-phase commercial electric.

Oct 21, 2012 | Rheem Water Heaters

1 Answer

I need the diagram american heat adk-3 6.4


You want wiring diagram? With recommended wire size?
This particular water heater is direct-wired into a wall box, and appears to be 240Volt 6500 watts. Connect water heater to 40 amp breaker and 8 gauge wire.
Look at nameplate on device for amp and wattage rating to confirm exact power requirement.
http://waterheatertimer.org/How-to-wire-Tankless-electric-water-heater.html

Or a general part illustration?
http://waterheatertimer.org/images/American-ADK-3-parts.jpg

Contact American Heat. 888-818-4328
Their support button and link to product manuals and literature seems rather null date 10-14-12 which could indicate a company in transition.
There is email form
http://americanheatus.com/index.php/contacts/

American Heat is NOT same company as American water heater company.

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I have a 1991 40 gl and it fell through the floor which is like 2 ft off the ground. turned the water off and replaced the pipes it has its own lever type power supply with the screw in fuses 30 amp (2) of...


You have 2 problems with several possible causes:
You have 10-year-old electric water heater that was reinstalled after falling down, and doesn't heat the water.
And you have no hot or cold water pressure, and no pipes are leaking.

1) First problem is lack of water pressure throughout house.
Turn on outdoor spigot nearest to water meter.
This spigot will tell you if problem is inside the house or between the house and meter.
If spigot runs full force, then you probably have clogged pipe where water heater connects to main cold line, or the main shut off valve got clogged with sediment that broke off inside the pipe when you were working on water heater.
Open and close shut off valve to see if that helps. Then disassemble pipes and track back the problem. Put pressure gauge on water heater drain valve to watch pressure drop when turning on indoor faucet.
Read following information:
http://waterheatertimer.org/Low-hot-water-pressure.html

Water heater doesn't work:
Test across wires at top of heater to see if you are getting correct voltage:
If tank is receiving correct voltage, then no hot water puts suspicion on upper element or upper thermostat, or both.
Open following link for electric water heater troubleshoot steps:
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

Jul 30, 2011 | RELIANCE ELECTRIC WATER HEATER

1 Answer

No hot water, checked ohms on both heat elements,top is 13.8 bottom is 13.4. i have 122volts to both elements and i played around with the heat adjustment on both top and bottom. over time could rusty well...


Marathon elements are specific to that water heater and can be ordered online, but generally are not at the local hardware.
Good to keep a couple spares around.
Marathon is 240Volt water heater.
Thermostats turn off one leg of the 240Volt circuit, so elements and themostats will always test for 120volts.
You removed wires off elements and tested each for continuity and tests showed elements to be good.
Test top two screws of upper thermostat and make sure you are getting 240V to the water heater.

If water heater has some hot water, then that says water heater is getting 240V, upper element is good, and remaining suspects are bad thermostats, bad lower element, or sediment build-up, or combination.

Open following link for troubleshoot run-down:
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

Water well.
If you have sediment build-up that reaches lower element, then water does not circulate around the element and water heater no longer heats very fast or accurately. If sediment is the problem, sooner or later the lower element will burn out.
Doesn't hurt to flush out the tank now and then, and vacuum out the sediment if that is problem.
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

Jul 10, 2011 | Rheem MR105245 Marathon Electric Water...

1 Answer

HOW LONG DOES IT TAKE AFTER INSTULATION TO HEAT WATER


Electric water heater typically makes 21 gallons hot water per hour.
Gas heater makes 41 gallons per hour.
If you use a timer on electric heater, it will make enough hot water for shower in about 15 minutes summertimer and 30 minutes wintertime. So incoming water temperature is a factor.

If your water heater is not full of water before turning on electricity, then elements will burn out.
Also the ECO might be tripped out: open top cover and push in red reset button.
How to troubleshoot electric water heater:
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

Apr 18, 2011 | RELIANCE ELECTRIC WATER HEATER

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