How Do I Reset My Stiebel Eltron Water Heater?

If you're looking for information on how to reset your Stiebel Eltron water heater, you found the right page. We've researched this method to find the answer for you.

Here's how to reset your Stiebel Eltron water heater.

  1. Turn off the power and circuit breaker.
  2. Remove the cover panel.
  3. Locate the reset buttons.
  4. Press the buttons until they click.

Keep on reading to learn more tips on how to reset your Stiebel Eltron water heater properly. We'll also tell you how a tankless water heater works, its advantages, and how you should care for your Stiebel Eltron water heater. Let's get this started!

water heater and shower in bathroom. - How Do I Reset My Stiebel Eltron Water Heater?

Resetting a Stiebel Eltron Water Heater

Electric water heater on the white brick wall in bathroom. modern style.

Stiebel Eltron water heaters have made our lives more comfortable and convenient. With their tankless and instantaneous water heaters, you can have hot water at your desired temperature right away. That's comfort and convenience at your fingertips. You just turn on the tap or shower, no more waiting for the hot water that you need for a relaxing bath after a hard day's work or for cleaning dishes with hard-to-remove dirt.

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They are very compact too so you won't have a problem with where to put them in your bathroom, kitchen, laundry area, or guest toilet.

As everyone who uses a water heater knows, it is such a hassle when you suddenly run out of hot water while you're taking a bath, especially when the weather is really cold. This leads you to worry about what has gone wrong with your Stiebel Eltron water heater.

But before you call for professional help, see if the problem can be resolved by simply resetting the water heater. Like other appliances, system glitches are possible and electrical signals can go out of order and out of your control. Good thing, there are many times when all you have to do to calm the haywire is just to reset the water heater. That's why every owner should know how to reset their electric water heater.

This can be quite complicated if you don't know where the reset buttons are so we're here to help you out.

Reset Buttons on Different Stiebel Eltron Water Heater Models:

Men hand regulate the power of hot water in Gas water heater.

The location of the reset button will vary depending on the unit model.

  • For Tempra and DHC-E models, the reset buttons can be found on the top portion of each copper heating vessel. Look for a small red or gray button.
  • For DHC models, look for the reset buttons at the heating vessel's top right portion.
  • For those with Mini models, the reset button can be found somewhere between the water connection pipe and the wiring block. It is a small, flat, round, and black button.

You can also look at your owner's manual or check their website to familiarize yourself with the different parts of your Stiebel Eltron water heater.

Now that you know where the reset buttons are, resetting your water heater is easy. Here's how.

Tools and Materials That You Need

  • Phillips screwdriver
  • insulated tool/pencil with an eraser or any slim and non-conductive material

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  1. For your safety, turn off the water heater. Put the switch off on the circuit breaker where it is connected.
  2. Use a Phillips screwdriver to remove the water heater cover. Set aside the screws in the meantime.
  3. Locate the thermal safety reset buttons on your unit.
  4. Use the insulated tool, a pencil with an eraser, or any slim non-conductive material that you have to press each of the reset buttons until you hear a clicking sound.

There you go! That's how you reset a Stiebel Eltron water heater. Make sure you close the cover and put the screws securely in place once you're done. You can now switch on the circuit breaker so you can use your water heater again.

Watch this video on how to reset a Stiebel Eltron water heater for your reference.

If resetting doesn't fix the issue, you better call Stiebel Eltron customer service for assistance. They can send someone over to take a look at your water heater and put it back in order.

How does a tankless water heater work?

master holds a thermostat from an electric boiler in his hand.

Unlike conventional water heaters that store heated water in a reservoir so that hot water is available when needed, tankless water heaters only begin heating the water upon demand. Their heating elements are designed to heat cold water in an instant. This is why they never run out of supply of hot water.

They can be powered by gas or electricity. Gas-powered tankless water heaters usually have a higher water flow rate than electric ones. The average flow rate is two to five gallons per minute. This is where its limitations lie, especially when you have a whole house model and several water outlets are used simultaneously. This is why it is important to install a water heater of the right size that should match your household's demand for hot water.

Other than this issue, tankless water heaters are seen as more energy and cost-efficient than their conventional counterpart.

Advantages of a Tankless Water Heater

Instant tankless electric water heater installed on grey tile wall with input and output pipe/outlet and elcb safety breaker system and silver shower.

Using a tankless water heater offers many benefits such as the following.

Energy Efficiency 

No heat is lost during storage or while on standby. They also have a lower operational cost and consume less energy since they only heat water when there's a demand for it.

You can also install them right next to your shower or faucet. This lessens the waiting time for your hot water supply and reduces heat loss from the point where water is heated to the point of use. 


These water heaters are compact. This means they won't eat up too much space in your bathroom, kitchen, or laundry area. There is no additional ventilation needed that's why you can install these units even in remote places in your home.

Value for Money

Tankless water heaters may have a higher upfront cost but they can generally last for 20 years compared to storage water heaters which have a lifespan of 10 to 15 years.

Reduced Repair Costs

When repairs are needed, their parts can easily be replaced so you don't have to spend too much on repair costs.

These are the benefits you stand to gain due to the efficiency and design of tankless water heaters. For households with a high demand for hot water, it is good to consider going tankless.

How do I care for my Stiebel Eltron water heater?

Your Stiebel Eltron water heater is a good investment and you should take good care of it to make it last longer. Here are some tips and recommendations for its maintenance.


Scales or mineral formations can clog up your water flow. It is advised that you descale your faucet aerators and showerheads regularly to prevent buildup.

Stiebel Eltron recommends mixing a quart of Flow-Aide with 1.5 gallons of water to flush the sediments out of the hoses of your water heater. Some use vinegar solution for this job. Check your manual for the procedure.

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Install a Filter or Water Softener

It is important to have your water quality tested. Some homes are serviced with hard water. This contains more minerals that can lead to sediment formation.

If you have hard water in your area, you can install a filter or water softener to prevent mineral buildup and extend the life of your water heater.

Clean or Replace the Filter Screen

Each Stiebel Eltron water heater comes with a filter screen. Check your manual to know its exact location since it varies depending on the model. They also have instructions on how to remove and put it back in place.

Dirt and minerals can also build up in this portion so it's best to have it cleaned regularly. You can use a vinegar or descaling solution. You can also buy a replacement if necessary.

Remember to shut off the circuit breaker when you perform any cleaning and maintenance on your unit. Always practice caution when handling your water heater to avoid burns, electrocution, and death.

Final Thoughts

It's important to know how to reset your Stiebel Eltron water heater. Many times, it'll save you from the hassle of calling a pro to have your water heater checked. With a simple reset, you can have your unit running in no time. 

Feel free to visit the following posts for some related reading:

What Happens When A Water Heater Goes Bad?

What Happens If Your Hot Water Heater Freezes?

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