How to Resolve Issues with an Eemax Water Heater

Quck answer

To troubleshoot an Eemax, follow these steps:

1. Check the power supply: Ensure that the unit is properly connected to a power source and that there are no issues with the electrical outlet or breaker.

2. Check the water supply: Make sure that the water supply to the unit is turned on and that there are no blockages or restrictions in the water lines.

3. Reset the unit: If there are no power or water supply issues, try resetting the unit by turning off the power for a few minutes and then turning it back on.

4. Check for error codes: Eemax units often have error codes that indicate specific issues. Refer to the user manual or manufacturer’s website to identify and troubleshoot any error codes.

5. Contact customer support: If the above steps do not resolve the issue, it is recommended to contact Eemax customer support for further assistance.

By following these troubleshooting steps, you can identify and resolve common issues with an Eemax unit.


Eemax offers a wide range of electric tankless water heaters in the United States. If you are considering purchasing a product to control the water temperature in your kitchen or bathroom, Eemax may be a brand you are considering. However, even the most reputable brands, especially those dealing with complex heating processes, can experience problems. While it is recommended to have technical expertise when dealing with electronic devices, there are a few simple steps you can take to troubleshoot common issues with your Eemax water heater.

Step 1

If the indicator light does not turn on when you switch on the machine and open the hot faucet, check that the circuit breaker switch is turned on at the circuit panel. This indicates that no power is reaching the unit.

Step 2

If the indicator light does turn on, but you are not receiving any water or only cold water, adjust the temperature adjustment screw on the machine. Turn the screw gently, keeping in mind that the maximum temperature for the unit is at the five o’clock position. Increasing the temperature adjustment should result in hot water.

Step 3

If you are still not receiving hot water from a seemingly functional unit, replace the heating element. Heating elements are readily available, but you can contact Eemax technical support at 800-543-6163 to obtain the correct replacement number for your specific model of Eemax water heater.

Step 4

If your heater made a clicking sound when water flowed through it, but now only produces cold water, reset the high limit thermostat. This indicates that an Eemax safety feature, the high limit thermostat, has been tripped.

To reset the thermostat, switch off the machine at the circuit breaker and use a flat-head screwdriver to remove the cover of the heater. You will notice that each gray heating chamber is attached to a circuit board, and near that circuit board is the high limit thermostat. It appears as a small black device with two orange wires connected to it. Press the small red button on the device to reset this safety feature.

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