Your EcoSmart tankless water heater may occasionally show an error code. For instance, you will see an ‘E’ with a number next to it.
Error codes typical to EcoSmart tankless water heaters include:
- Error code E1 indicates an error on the inlet thermistor.
- An outlet thermistor issue is indicated by the error code E2.
- E3 error code: both thermistors are malfunctioning.
- A high temperature-related fault has the error code E4.
- A high flow rate error has the error code E5.
- Low voltage error, S103 error code.
Start by power cycling your device.
If you encounter any of these issues, use the following step-by-step instructions to resolve or reset them:
- Turn off every hot water tap in your house.
- Turn off your tankless EcoSmart water heater. If the EcoSmart device includes one, you can use it to turn it off. Turn it off using the temperature control knob if it doesn’t have a remote control.
- Deactivate the circuit breakers. Ensure the EcoSmart tankless unit doesn’t have any electricity flowing while you do this.
- Turn off your EcoSmart tankless water heater for five minutes.
- Once those five minutes have passed, turn on your EcoSmart tankless water heater.
By reading this post, you may learn how to resolve any EcoSmart tankless water tank problem code.
Fixing error codes on EcoSmart water heaters
You can follow the detailed troubleshooting instructions for each of the six problem codes in this section.
Temporary or quick solutions are also included in these tutorials for resetting and troubleshooting your EcoSmart tankless water heater. Until you can permanently fix your EcoSmart tankless device, you may use the hot water using fast remedies.
But it’s important to understand that not all of these remedies are foolproof. Therefore, speaking with a qualified specialist who can handle your problem is essential.
When the unit is not receiving power, one situation where these resetting instructions could not work is that. For instance, This may result from a power outage or surge. It can also be because the power board fuse blew out. In this case, looking for or contacting a qualified specialist to solve the problem is best.
However, if you are knowledgeable and skilled in circuits and wiring, you may repair it yourself. In these situations, you must remove the EcoSmart power board casing and replace the fuse. Amazon allows you to purchase a precise blown-out fuse.
Error code E1
The thermistor has made this mistake. For instance, if your EcoSmart tankless water heater unit displays the E1 error number, the EcoSmart intake thermistor is not reading the correct temperature, and you are being alerted to this. Therefore, you might need to permanently replace the inlet thermistor to fix this problem code.
Although if you lack the funds to repair the broken inlet thermistor, you shouldn’t worry. This is so that you may execute short-term troubleshooting. For this problem number, there is only a brief fix.
As a result, even if you address the issue, you must get a new inlet thermistor and find a long-lasting solution.
Follow these instructions step by step to fix an E1 error:
- Switch on the water. As a result, the LED display is switched ON and shows an E1 fault.
- For three or five seconds, depress the circular knob.
- Release the circular knob. When the knob is released, CE1 is shown or displayed on the LED display.
- Keep the water flowing for two or three minutes.
- See if you can get hot water.
You will receive hot water from your EcoSmart tankless water heater if you follow these instructions while waiting to buy the new component.
You should know that the heating temperature will default or factory reset to 125 degrees when your EcoSmart tankless water heater operates or functions operate or functions in the CE1 Mode, just like a regular or properly functional EcoSmart tankless water heater.
Important to keep in mind is that you won’t be able to alter the outlet temperature when in CE1 Mode. For instance, you must combine hot and cold water for a desirable temperature.
Error code E2
The outlet thermistor on the EcoSmart tankless water heater is malfunctioning. For instance, if your EcoSmart tankless water heater unit displays the E2 error number, the EcoSmart intake thermistor is not reading the correct temperature, and you are being alerted to this. Therefore, you might need to permanently replace the inlet thermistor to fix this problem code.
While you wait to buy a replacement part, you can temporarily fix this problem. Please be aware that this is simply a temporary solution to the problem.
Consequently, adhere to the following instructions to temporarily resolve, reset, or bypass the E2 error code on the EcoSmart tankless water heater;
- On-off the water valve. For instance, when the LED display is on, you will see that it says “E2 error.”
- For around three to five minutes, turn the circular knob.
- Open the circular knob. When the knob is released, CE2 is shown or read on the LED display.
- Keep the water flowing or running for two or three minutes.
- Verify whether you can get hot water.
You will obtain hot water from your EcoSmart tankless water heater if you follow these instructions, even while you wait to buy the new component.
You should be aware that the heating temperature will default or factory reset to 125 degrees when your EcoSmart tankless water heater is operating or functioning in the CE2 Mode, just like it would with a regular or properly functional EcoSmart tankless water heater.
Important to keep in mind is that you won’t be able to alter the outlet temperature when in CE2 Mode. For instance, you will need to combine some hot water with some cold water to get a desirable temperature.
Error code E3
The input and outlet thermistors on the EcoSmart tankless water heater are malfunctioning. For instance, the EcoSmart intake thermistor is not sensing the correct temperature if your EcoSmart tankless water heater equipment shows the E3 error number. Therefore, you might need to replace the inlet thermistor to fix this problem permanently.
While you wait to buy a replacement part, you can temporarily fix this problem. Please be aware that this is simply a temporary solution to the problem.
Consequently, adhere to the following instructions to temporarily fix, reset, or get around the EcoSmart tankless water heater’s E3 problem code;
- On-off the water valve. For instance, when the LED display is switched on, you will see that it displays the error code E3.
- For around three to five minutes, turn the circular knob.
- Open the circular knob. When the knob is released, the LED display displays or displays CE3.
- Keep the water flowing or running for two or three minutes.
- Verify whether you can get hot water.
You will obtain hot water from your EcoSmart tankless water heater if you follow these instructions, even while you wait to buy the new component.
You should know that the heating temperature will default or factory reset to 125 degrees when your EcoSmart tankless water heater operates or functions in the CE3 Mode, just like a regular or properly functional EcoSmart tankless water heater.
Important to keep in mind is that you won’t be able to alter the outlet temperature when in CE3 Mode. For instance, you must combine hot and cold water for a desirable temperature.
Error code E4
You won’t always be executing a reset when dealing with an E4 error code. There is a High-Temperature mistake. Consider that the E4 Error Code is being read or shown by the LED control board of your EcoSmart tankless water heater. The EcoSmart device indicates that the incoming water temperature is 150 degrees or above.
There are 2-4 thermostats on the EcoSmart tankless water heater. However, the quantity of thermostats depends on the tankless water heater model of your EcoSmart. All of the thermostats have a 140-degree rating.
It is neither rated nor intended for the EcoSmart tankless water heater to heat at temperatures above 140 degrees.
You must lower or reduce the incoming water temperature to read below 140 degrees if your EcoSmart tankless water heater displays an E4 error signal.
The display LED on your EcoSmart tankless water heater will turn on or light up with the desired set home temperature when the water temperature drops below 150 degrees.
Error code E5
Due to the high flow rate, E5 is an error. Your EcoSmart tankless water heater’s LED control board will show an E5 error signal if the targeted water volume is too high. As a result, you will need to reduce the flow rate.
Every bathtub, shower, and sink features an aerator. The aerator aids in managing the water flow.
- 1 to 2.5 litres per minute can be used in the sink.
- Water flow rates in the shower range from 1.5 to 3 gallons per minute.
- The bathtub can hold between 3.5 and 8 gallons of water every minute.
Follow these simple instructions to determine how much flow is presently passing through your EcoSmart tankless water heater system:
- Find the On button on the EcoSmart monitor.
- For around ten minutes, hold down the On button. You may access the diagnostic screen using this.
- Follow the three screens after the diagnostic menu has opened. You may accomplish this by counterclockwise turning the circular knob. There are three displays :
- First showing. The temperature of the intake water is delivered.
- The initial turn. It shows the temperature of the outflow water.
- The following turn. It displays the flow rate right now. One aspect of this
- The screen is where the decimal point is concealed.
You must reduce the amount of water going through the EcoSmart tankless system whenever the LED control board of your tankless water heater displays the E5 error code. Slow it down until the desired temperature is displayed on the LED display.
I advise you to install a flow restrictor to do this. Additionally, you may shut off the incoming and departing water valves.
Error code S103
S103 is a low-voltage mistake. If the LED control board for your EcoSmart tankless water heater displays the error number S103, the EcoSmart tankless unit is not getting enough electricity to operate.
The EcoSmart tankless water heater requires 208 volts or more for proper operation. As a result, you will need to test the electricity going into your EcoSmart tankless water heater.
Your EcoSmart system LED will show the chosen temperature whenever the EcoSmart tankless water heater receives the proper quantity of incoming electricity. Consequently, the water will begin to warm.
Guides for Other Tankless Water Heater Error Codes :
- Troubleshooting Tankless Water Heater Error Codes: Rinnai
- Troubleshooting Tankless Water Heater Error Codes: Rheem
- Troubleshooting Tankless Water Heater Error Codes: Navien
- Troubleshooting Tankless Water Heater Error Codes: Noritz
- Troubleshooting Titan Tankless Water Heater Problems
- Troubleshooting EcoSmart Tankless Water Heater Error Codes
- Troubleshooting Tankless Water Heater Error Codes: Bosch
