E3 error on LIfesmart heater

E1 is an error code that may be displayed on a Lifesmart infrared heater. It typically indicates a problem with the heater's thermostat or temperature sensor.
If you see the E1 error code on your Lifesmart infrared heater, it is recommended that you try the following troubleshooting steps:

1. Check the heater's power cord and ensure that it is securely plugged into a working outlet.
2. Check the heater's thermostat and ensure that it is set to the correct temperature.
3. Check the heater's air filter and ensure that it is clean and free of debris.
4. Check the heater's temperature sensor and ensure that it is properly connected to the heater.
5. If the above steps do not resolve the issue, it is recommended that you consult the heater's owner's manual or contact Lifesmart customer support for further assistance.

It is important to note that if the E1 error code persists, it is possible that the heater may be malfunctioning and may need to be repaired or replaced.

The power to the heater can be disengaged to prevent the heater from being accidentally or unintentionally powered on. This feature is primarily added to help prevent children from powering on the heater when it is not desired. • To engage the heater override function press and hold the HEATER ICON for 10 seconds. The symbol E3 will display and then go blank while beeping 3 times. The heater function is now locked. If the HEATER ICON is pressed again E3 will appear then fade.The Flame, Downlight and Timer functions will operate normally. Only the heater and blower are disengaged. • To unlock the heater function, press and hold the HEATER ICON for 10 seconds. The symbol E3 will display and then go blank while beeping 3 times. The heater function is now engaged.

Hello, Karen -

I have found several user manuals for Lifesmart heaters online and have looked through them.

None of the manuals I looked through mention reset buttons.

You have not stated the model number for your Lifesmart heater. If you choose Comment and type the model number in the Comment box, perhaps I can find the right manual for your heater and give you the link to download a copy of the manual.

Is your problem that while using your heater is suddenly turns off? If so . . . following is the information I found in the Lifesmart heater manuals (several different models:
(Quote)
Overheat Safety Feature
This heater is equipped with an overheat safety feature. When the internal components of the heater reach
a certain temperature that could cause overheating or possible ?re, the heater will automatically shut of
(End quote)

If that is the case with your heater, you will need to let it cool down before restarting it. You will need to make sure the Power button is turned to Off and then unplug the heater to allow it to cool down.

If you indicate the model of your heater, I will try to find the right user manual for you to download.

Best wishes.

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Here is a troubleshooting video. Hope it is useful

Does it matter if the thermostat is 120v or 250v?

Its eco mode aka turns off and on to save energy.

Replaced 301 80C 16A thermostat, purchased on ebay for $6.00, fixed problem. to Fix standing at front, Remove left side panel, two small screws hold thermostat in place. LifeSmart wants $36.00 for same part. Fixed problem.