Why My Lifesmart Heater Keeps Shutting Off + How To Fix [Solved]

There can be a few reasons why your Lifesmart infrared heater stopped working properly. Heater overheating, bad thermostat, electrical overload, and an over-powerful heater are the most common reasons why Lifesmart heater keeps shutting off.

Take a look at our guide for easy solutions to fix your heater ASAP. 

Why Lifesmart Heater Keeps Shutting Off [4 Easy Solutions]

We’ll now take a look at the solutions that are applicable for each of the different reasons why the Lifesmart infrared heater keeps shutting off.

To choose a solution that matches your situation best, first, you’ll need to identify which of these issues are causing your heater to keep shutting off. 

1. Overheating

The most common reason why heaters shut off is overheating. Your heater will show the E1 error code when it overheats. This fail-safe mechanism is there to protect the heater from damage caused by overheating.


To solve this issue you need to turn off and unplug your heater, wait for it to cool down and then plug it back in. When you turn the heater back on it should work just as fine as before.

But this solution is temporary if your heater is placed in a tight spot. When your heater’s air inlet and outlet are blocked by solid objects, that causes poor airflow to the heating system. Due to poor airflow, your heater tends to overheat often.

Make sure your heater’s air inlet and outlet are at least 3 feet away from any solid material that will obstruct airflow.

Now, let’s say your heater is positioned correctly and your heater still gets overheated after starting. In that case, check your heater’s filter. It must be dirty and blocking airflow. You need to clean it to fix your filter.

Take out the filter and check to see if it has a plastic frame or a cardboard one. Cardboard framed filters can’t be reused, so you’ll need a replacement.

Plastic framed ones can be reused. Wash it under a faucet or with a garden hose. Make sure all the dirt is removed and let it dry before replacing it in the heater.

2. Electrical Overload

Another reason why your heater keeps shutting off can be that your heater is being supplied with more voltage than its rating. When the heater is overloaded, the fuse is tripped, cutting off power to the entire unit.


Reset the circuit breaker. But if this issue persists, it’s most likely being caused by a broken motor. Heater motors are extremely complicated and if you don’t have any expertise in electrical work you may damage your unit for good. It is better to leave this one to the professionals.

A licensed electrician will figure out which heating component is causing the issue and fix it. 

3. Bad Thermostat

A faulty thermostat can misread temperature and cause your heater to shut down prematurely. And you may notice your lifesmart heater won’t turn on from then. This can happen because of a broken internal gauge in your thermostat. Sometimes due to the bad placement of the thermostat in your home, it functions poorly. 

Suppose, you’ve placed the thermostat at a spot that is usually hotter than the rest of the house. This will misdirect your thermostat into identifying temperature inaccurately. 


Make sure your thermostat isn’t broken. You can test the thermostat with a multi-meter. If your thermostat isn’t working properly and gives an abnormal reading on the multi-meter, you’ll need to get it replaced. You can easily find Lifesmart heater parts, which are compatible with your heater in the market. 

Also, ensure that your thermostat is in a place that represents the temperature of the entire room well. Placing the thermostat close to a draft or a hot spot is not ideal.

4. Over Powerful Heater

When your heater is too powerful for your house, the heater will shut off prematurely as the room will heat up very quickly. 


You’ll need to replace your heating system as there is no way to fix this improper installation. The heater is too big for your home. You’ll need to get a new one that fits perfectly with your home size.


Can you run infrared heater all night?

Infrared heaters are safe to leave on overnight. A good quality heater comes with safety features that shut off the heater when overheated or toppled over. Having said that, it isn’t a good idea to keep your heater on when you are away or asleep. You can never be too careful!

Can an infrared heater start a fire?

Infrared heaters don’t use fuels to heat your home. So, they don’t cause fires or make booming explosive noises due to delayed ignition. They’re much safer to use.

Will an infrared heater heat a room?

A good-sized infrared heater is good enough to heat your entire house. They’re pretty great at providing natural, deep warmth to your entire house.

What size room will a 1500-watt heater heat?

About 150 square feet of space can be heated by a 1500-watt heater. 10 watts of heating power is good enough to heat a square foot of space.

How much does it cost to run a 1500-watt heater for 24 hours?

It should cost you close to a little less than $5 to run a 1500-watt heater for 24 hours.


Hopefully, after reading our guide your Lifesmart heater keeps shutting off no longer. Stay warm and comfortable all winter! We’d love to help you out if you have any queries. Comment below and we’ll get back to you soon.

About William

William is the founder of Fireplacehubs.com. He has real life practical skills in fixing smoker & heating appliance issues. He loves to share his knowledge & helps others in fixing their appliances & saving their money. William firmly believes that anyone can repair his or her unit with the correct guidance & knowledge. See more at about us.

2 thoughts on “Why My Lifesmart Heater Keeps Shutting Off + How To Fix [Solved]”

  1. The power went on and off multiple times in the last few hours and now my heater will turn on and immediately turn off and will not run no matter what setting I put it on. I’ve tried unplugging it and holding the power button down to bleed out any capacitors and that didn’t work.. when I plug it back in and turn it on it will set to the default high 72 setting and turn off immediately


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