Crossfire Smoke Alarm Problems [5 Easy Solutions]

The most common Crossfire Smoke Alarm problems are:

  • The smoke alarm keeps beeping.
  • The smoke alarm flashes light.
  • Giving false alarms.
  • And the carbon monoxide sensor stops working.

However, in our today’s Crossfire Smoke Alarm troubelshooting guide, we will break down the above issues with solutions. So, keep reading…

Crossfire Smoke Alarm Problems [5 Easy Solutions]

The smoke alarm problems are pretty generic. However, you can solve those all by yourself just by following the below solutions.

Note: Also read how to fix the smoke alarm that goes off when the heater turns on.

1. Crossfire Smoke Alarm Keeps On Beeping

Now, the alarm is designed to beep whenever there is a fire inside the house. Crossfire Smoke Alarms can detect smoke.

Infrared lights are scanning the smoke chamber every 4 seconds. So, if there is smoke in the air, the alarm will go on.

However, you might encounter continuous beeping for several reasons. First of all, the chamber might be dirty.

Secondly, your battery might be weak. Whatever the case is, you can solve it all by yourself. Follow the said instructions to find the best remedy.


  • Check the smoke chamber. If it is dirty, you will have to clean it. Follow the smoke chamber cleaning tutorial from the segment below.
  • Take out the alarm. Open the back compartment. Now, Crossfire Smoke Alarms use Lithium-Manganese batteries, which are designed to last for 20 years.
  • Due to several reasons, the battery might get affected. Check the connections and the voltage of the battery. If the readings are okay, you have some issues with the power circuit. 
  • If the voltage doesn’t appear to be right, you will have to replace the batteries. Call your dealer or consumer support to claim a warranty. 
  • You can still replace the batteries with standard 9 or 12-volt batteries. However, our experts don’t suggest this. 

2. Crossfire Smoke Alarm Flashing Lights

Now, there are 3 distinctive lights in your Crossfire Smoke Alarm systems. The first one is the power indicator light, which flashes ‘Green’. If it is flashing every 30 seconds or keeps on flashing, it means that the alarm is activated.

Now, the other 2 lights are the main lights for caution. Starting off with the yellow, it flashes to indicate a warning.

And the red flashes for several reasons. Follow the solution segment to find proper remedies. 


  • If the yellow light is flashing every 30 seconds, the alarm is indicating that the smoke chamber requires cleaning. In such cases, you will have to clean the smoke chamber.
  • If the red light is flashing every 30 seconds for a minimum of 7 days, then the alarm has a low battery problem. You will have to replace the battery.
  • If the red light is flashing with a horn chirp, then the smoke sensor has reached its end of life. In such cases, you will have to replace the alarm itself.
  • You might see a solid red light after 4 beeps of a horn. This will trigger when the remote signal goes on for a CO alarm. In such cases, you will have to quickly evacuate the house and call for help.

3. False Alarm

Your Crossfire Smoke alarm can trigger a false alarm for various reasons. For instance, clogged smoke chambers, steam from hot water, cooking smoke, or circuit failure can be possible causes. You will have to follow the solution to evade such an occurrence.


  • First of all, you will have to place the alarms in a proper place. Avoid placing the alarms in the bathroom, near the kitchen stove, and such sort. 
  • Check the smoke chamber on a weekly basis. You can easily avoid such problems if you do so.
  • In case of circuit failure, you have nothing much to do all by yourself. Call your technician or consumer support for further suggestions.

4. Battery Failure

Though Crossfire Smoke Alarms claim to have factory-grade batteries that will last up to 20 years, you may face some issues.

Some models come with both AC and battery backup. However, battery-only models will stop working if you have such battery issues.


  • In such cases, you will have to replace the battery. Call your dealer or consumer support to find a fresh unit of batteries. Replace the old ones, and you will have no issues.

5. Carbon Monoxide Sensor Not Working

This can happen for several reasons. Though the reasons might be indefinite, the problem is very alarming.

To solve this problem, you will have to hard reset the system itself. Follow the solution segment to perform a hard reset maneuver for your Crossfire Smoke Alarm system.


First, unmount the alarm from the ceiling.

  • If it is dual-powered, you will have to take out the power cable as well. If it is running only on batteries, take out the batteries.
  • Now, press and hold the test button for 20 seconds. You will hear a beep and the alarm will go out. 
  • Now, place the batteries back again, reconnect the cables and turn on the alarm. You will see a green light that indicated the alarm is activated once again.

How To Clean the Smoke Chamber of a Crossfire Smoke Alarm

Cleaning the smoke chamber of your Crossfire Smoke Alarm is very simple. The best part of this smoke alarm is the chamber itself.

The smoke alarm comes with a twist-lock smoke chamber. You can take it out and clean it. Follow the instructions to clean properly the smoke chamber of a Crossfire Smoke Alarm.

  • First, take out the smoke chamber. Take a soft cloth and clean the infrared sensors.
  • Now, take a cleaning solution and clean the smoke chamber. You can rinse it with water. However, you will have to dry it completely.
  • If the chamber is not that dirty, you can clean it with a vacuum brush as well.
  • Twist the chamber back in and remount the alarm. 


What is the life span of Crossfire Smoke Alarms?

Experts suggest that you should change your smoke alarms every 10 years. However, Crossfire claims that its batteries will last for 20 years. On the bright side, the company will replace the smoke alarms after 10 years upon the customer’s request. 

Where should you not place Crossfire Smoke Alarms?

You should not place the Crossfire Smoke Alarms near the stove, hot steam, and places with high temperatures. It may trigger a false alarm.

Why is your Crossfire Smoke Alarm keeps shutting down?

It can be for power failure. Crossfire Smoke Alarm batteries can last up to 20 years. Even if it fails, you can call customer support to claim the warranty.

Final Words

Now you know all about the common Crossfire smoke alarm problems with their solutions. So, you can fix them in no time.

About William

William is the founder of 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.

1 thought on “Crossfire Smoke Alarm Problems [5 Easy Solutions]”

  1. I have the smoke alarms and a couple of them started chirping. I sent them to the address on the back of the alarm on Sept. 28, 2023. I have not heard anything and was just wondering. I could not find a phone number to call so I sent them in. I would like the battery’s replaced please. Please call me at 406-489-3637 so I know what is going on with them.


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