Comfort Zone Heater Not Working [7 Easy Fixes]

The most common reasons for your Comfort Zone heater not working are a tripped circuit breaker, heater not getting power, anti-tip sensor, overheating problem, clogged air filter, thermostat issue, and a dirty fan.

You can remedy this by ensuring a proper supply of electricity, turning off the anti-tip feature, cleaning or replacing the air filter, fan, and so on. Keep reading this article to find out about these problems in detail.

Table Of Contents

Comfort Zone Heater Not Working [7 Easy Fixes]

We’ll discuss the most common reasons why your heater isn’t working and how to fit them.

Fair Warning

Before you get started with the comfort zone heater troubleshooting guide, don’t forget to unplug your heater. 120 volts of current is required to run the heater. This power is high enough to cause serious damage to you.

1. Tripped Circuit Breaker

Be on the lookout for a tripped circuit breaker. Breakers tend to be worn out with time. A damaged breaker won’t supply enough current to your heater for it to turn on.


Check the breaker panel to find out if the breaker has been tripped. The first thing you can do is flip the breaker back and see if your heater is working.

If the heater doesn’t work, you could have a faulty breaker. Test it against other electronic appliances to see if it’s okay or not. You need to replace the circuit breaker if it’s permanently damaged.

2. Heater Not Getting Power

There are a number of reasons that can keep your heater from getting power. The most common issues are a faulty power outlet, wiring problems in your home, or the power cord of the heater being damaged.


There will likely be some black markings on the power outlet if it’s damaged. You can know for sure by plugging in other electronics and seeing if it works. If it doesn’t work, your power outlet has gone bad and you should replace it.

Inadequate wiring can lead to fires and cause accidents in your home. Call a technician and have him take a look to see if the wiring in your house is appropriate to run a comfort zone heater.

Make sure the power cord of the heater is okay. Look if the plug or the cord of the heater has been damaged or cut. If there are visible problems with the power cord, you should replace it before trying anything else.

3. Anti-Tip Sensor

The comfort zone heater comes with many safety features. The anti-tip sensor is one of them. This feature requires the heater to sit perfectly upright.

Tilting the heater even by a few degrees causes this feature to turn on and it’ll automatically shut off the heater.


This feature is only in place to protect your heater from catching fire. Turn off this feature if you don’t need it and check if the heater is working. Put the heater in an upright position if it works and you’re good to go.

4. Overheating Problem

The thermocouple in the heater monitors the temperature inside the heater. If the heater becomes too hot, the heater is turned off automatically.

This feature is more important than the anti-tip feature. So, it’s not a good idea to turn this feature off. The heater will be overheated and catch fire if this feature isn’t active. 


The first thing you can do is change the high limit of this safety feature. You can increase it to make sure that the heater only turns off when it reaches the highest possible temperature before shutting off.

But the recommended way to go about this is to wait for the heater to cool down. You can reset the heater and it should start again.

Keep your heater in the coolest part of your room and make sure it’s well-ventilated.

5. Clogged Air Filter

The air filter protects the heating coil of the heater from becoming dirty. It also ensures a steady supply of clean air to your room. With time, it will accumulate dust and become clogged.

A clogged air filter will reduce the flow of air to the heater. Less air will be able to pass through it and that will cause the heater to become overheated. The heater will turn off because of the safety feature.


This problem is not something you should worry about. The air filters are meant to be replaced from time to time and you can easily replace them. To get maximum use of your air filter, clean it as often as you can.

6. Thermostat Issue

The heater is set to turn off if your room reaches the temperature you’ve set in the thermostat. So, the heater will not turn on if the temperature on the thermostat is lower than the temperature in your room.

In an unfortunate scenario, your thermostat may be damaged. There could be problems with your thermostat switch and thermostat board. Programming errors can also cause the thermostat to malfunction.


You can just turn up the temperature in your thermostat if this is the problem. If you’ve reached the maximum temperature already, wait for the room to cool down and you’ll be able to turn it on again.

If you see the comfort zone heater thermostat not working, call in a technician. The average Joe won’t be able to detect the problem. Let alone solve it. The electrician will fix the problem.

7. Dirty Fan

A dirty fan will raise the temperature inside the heater and cause the heater to shut off. It’s easy to check if the fan is working properly. If you hear a spinning noise, the fan is working. Otherwise, it’s not.


Sadly, a dirty or malfunctioning fan is not an easy problem to fix for most people. You’ll need to unscrew your heater and take it apart to access the fan.

If your fan has gotten dirty, you can clean it with a cloth and your heater will run again. But the motor of the fan may also get damaged. In that case, you’ll have to replace it.


How to reset a comfort zone heater?

Turn off the heater and unplug it from the power outlet. Let it cool down for a minimum of ten minutes. That’s all you need to do to reset your comfort zone heater.

Why is my space heater blowing cold air?

Clogged air filters are the most likely culprit if your heater is blowing cold air. You can clean or replace the filter and your heater would work again.

How to check the heating element of the comfort zone heater?

You need a multimeter to check the resistance of the heating element. Having an open line across the heating element means that it’s gone bad and you’ll need to replace it.

How to clean your comfort zone heater?

You can clean the heater by cleaning the outside of the heater and the fan blades, fan motor, air filters, and heating element.


Now, you the reasons why your comfort zone heater not working and what you can do about it.

We hope the solutions we shared will be useful to you and you can get your heater up and running again. Leave a comment below if you have any questions for us.

Note: You can also read how to fix the Lasko heater won’t turn on problem.

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