Before You Call for Service
Save time and money by reviewing these troubleshooting tips first. You might not need to call for service.
Water Does Not Get Hot
Ensure the power supply is on and working.
If the light does not come on, check if the reset button has been toggled into the reset position. The reset button is located on the back of your mini tank towards the bottom.
If the power button is illuminated but the water does not get hot at the sink, test for a plumbing crossover by shutting off the cold water supply to the water heater and opening the hot water tap (there should be no water flow). Any continuous flow indicates a crossover, which will need to be corrected.
If you are unable to determine a plumbing crossover, replacing the heating element may be necessary.
Power Button Not On
If the power indicator button light does not come on but the water gets hot, check for a faulty power indicator button bulb.
Check the reset button.
Brown Water
Brown or rusty water indicates a spent anode rod. Replace the anode rod.
Odor in Water
Smelly water could be due to an unusual reaction between local water and the heater's anode rod. Check the anode rod.
Water Is Too Hot
Turn the temperature knob to a lower setting, or use the app to set the temperature lower. If the water temperature does not lower within 60 minutes, the thermostat may need to be replaced.
Water Is Not Hot Enough
See "Adjusting Your Thermostat" on page 16 of the manual.
Water Is Leaking
Unplug the water heater from the 110/120V outlet.
Check and tighten any loose water fittings and/or the T&P fitting on the top of the tank as needed.
Remove the cover and inspect the heating element gasket to see if it is loose or damaged.
No Power
If the Mini does not seem to have power even though it is plugged in, check the reset button on the back of the Mini to make sure it is not toggled into the reset position. If the reset button is not toggled, please contact customer service for further assistance.
Wi-Fi Connectivity
When your Eccotemp SMARTHOME Mini Tank is connecting to WiFi, the power button on the front of the Mini Tank will blink red for up to 60 seconds while it connects. If it is unable to connect during that time, it will try again periodically for up to 15 minutes.
If your water heater does not connect to your WiFi, it will automatically set the temperature to the default of 118°F. Your app will indicate if your heater has connected successfully.
Error Codes on the Front Panel and the App
Your Eccotemp SMARTHOME Mini Tank can report 2 different errors. The app will explain how to interact with the water heater to diagnose and fix some problems. You can also look at the power button, which will blink in a sequence based on the error it is reporting.
Error Code 1: Thermostat Malfunction
When the ESH reports an E1 Error, the power button will blink blue once every three seconds until the issue is fixed.
If you have an E1 Error, please contact customer service.
Error Code 2: Rapid Temperature Increase
When the Mini reports an E2 Error, the power button will blink blue twice and then pause for three seconds before repeating until the issue is fixed.
A rapid temperature increase is typically caused by the Mini not being full of water. Disconnect the Mini from power, fill it with water, and reconnect it to power to resolve the issue. If the E2 error code is not resolved, please contact customer service for further assistance.
For further assistance, don't hesitate to reach out to our customer service team.