How To Reset EcoSmart Tankless Water Heater & Fix Error Codes

EcoSmart is a great brand for a tankless water heater. But even so, you’ll need to reset it now and then. Usually, you’ll see an error code displayed on your water heater display and your water heater will stop functioning.

Then you’ll need to perform a reset to fix your EcoSmart water heater issues and run it again in that case.

In this article, we will discuss how to reset EcoSmart Tankless water heater. Plus, we will tell you what you need to do to stop the errors from occurring again. Because resetting is only a temporary solution. 

How To Reset EcoSmart Tankless Water Heater [4 Easy Steps]

Resetting the EcoSmart Tankless water heater is pretty easy and anyone can do it. Here are the steps.

Step 1: First, turn off all of your house’s hot water faucets.

Step 2: Turn your EcoSmart off. If your tankless unit has a remote, you can use it to turn off the unit. Otherwise, press the temperature control knob to turn it off.

Step 3: Make sure there is no electrical current in the unit by turning off the circuit breakers.

Step 4: Turn off the unit for 5 minutes. After that, turn the unit on.

Sometimes, even after you have reset your heater your LED will still show the error code. Other times, the water heater will run for a while but then show the error code again.

So, you’ll need to figure out how to get rid of the error code more permanently to end this cycle of continuously resetting your water heater.

Solutions To EcoSmart Error Codes That Require Heater To Be Reset

There aren’t that many error codes for the EcoSmart tankless water heaters. We’ll go through all of them here.

1. E1 Error Code

This error code indicates that the inlet thermistor in your device is not reading the correct temperature and may need a replacement.

Solution:

There is a way to bypass this error for a short time. But you’ll need to call in a professional to take a look at your inlet thermistor. Here’s how you can get hot water for the time being.

1.  Turn on the water so that the LED display illuminates and displays the E1 error.
2. Press and hold the round knob for 3/5 seconds before releasing it.
3. Your LED display should now read CE1 at this point.
4. Run the water for 2/3 minutes and check for hot water.

2. E2 Error Code

This error code indicates that the outlet thermistor in your device is not reading the correct temperature and may need a replacement.

Solution:

There is a way to bypass this error for a short time. But you’ll need to call in a professional to take a look at your outlet thermistor. Here’s how you can get hot water for the time being.

1.  Turn on the water so that the LED display illuminates and displays the E2 error.
2. Press and hold the round knob for 3/5 seconds before releasing it.
3. Your LED display should now read CE2 at this point.
4. Run the water for 2/3 minutes and check for hot water.

3. E3 Error Code

This error code indicates that both the outlet and inlet thermistor in your device is not reading the correct temperature and may need a replacement.

Solution:

To solve this error you may need to replace the outlet and inlet thermistor. But you can temporarily bypass this error code by performing this brief procedure.

1. Turn on the water so that the LED display illuminates and displays the E3 error.
2. Press and hold the round knob for 3/5 seconds before releasing it.
3. Your LED display should now read CE3 at this point.
4. Run the water for 2/3 minutes and check for hot water.

4. E4 Error Code

When the incoming water temperature is 150 degrees or greater, this error code will show up. 

This heater has two to four thermostats (depending on the type), all of which are rated at 140 degrees Fahrenheit. It is not designed to heat above 140 degrees Fahrenheit.

Solution:

If your control board displays this error code, decrease the incoming water temperature below 140 degrees Fahrenheit.

The LED display will glow with the desired set temperature once the machine receives water below 150 degrees.

5. E5 Error Code

In case the E5 error code appears on the LED control board, the desired volume of water is too high, and the Flow rate must be slowed.

Solution:

Aerators are installed in each sink, shower, and tub to regulate the flow of water. The range of flow rate should be the following.

• Sinks =1 – 2.5 GPM (gallons per min)  
• Showers = 1.5 – 3 GPM  
• Bathtubs = 3.5 – 8 GPM  
• Washing machines 1.5 – 2.5 GPM

If the LED control board displays an E5 error, reduce the amount of water flowing through the system until the LED display starts to read the desired degrees. 

Installing a flow restrictor or partially closing the incoming or leaving water valve is recommended for this. Flow restrictors are available from most hardware stores, online sellers, and EcoSmart directly.

6. S103 Error Code

Your unit may not be receiving the correct power to the system if the LED control board displays an S103 error code. To work properly, this heater requires a voltage of at least 208 volts.

Solution:

You need to ensure that the water heater is getting the correct voltage. Contact your electrical utility company.  When the heater receives the proper incoming power, the system’s LED display will show the desired temperature, and the water will begin to heat.

FAQ:

What would cause a water heater reset button to trip?

One of your heating elements may be faulty or worn out if your water heater reset button keeps tripping. The metal casing of the heating element may have cracked if the reset button on a water heater thermostat continues tripping.

How long should a tankless water heater last?

The majority of tankless water heaters have a lifespan of over 20 years. They also contain easily replaceable parts, allowing them to last for many more years. Storage water heaters, on the other hand, endure 10–15 years.

Do you have to drain your water heater once a year?

Draining your water heater at least once a year is generally a good idea. Although water heaters are relatively low-maintenance appliances, remember to empty yours regularly. This may aid in keeping the system working smoothly and the hot water flowing.

How long does it take to flush a water heater?

Flushing a water heater takes 10-20 minutes on average. It may take longer if you haven’t flushed your water heater in a long time.

Why is my hot water discolored?

Sediment and mineral build-up inside the heater are probably the most prevalent cause of colored hot water. The most common cure to this problem is to flush the tank of the water heater.

Conclusion

After you’ve taken care of the error code and reset your heater, your heater should resume its normal function. You may need to hire a professional based on the error code you’re having to deal with, and the complexity and persistence of the issue.

Hopefully, your water heater is up and running in no time. Enjoy the hot showers!