Fix Carbon Monoxide Detector Went OFF Then Stopped

One of two things that can cause your carbon monoxide detector to turn off and discontinue performing. It’s possible that the detector has reached the decline stage, or that the battery is low.

In either case, you must ensure that your home is free of harmful gases before turning it back on.

This will assist you in troubleshooting the issue and determining what needs to be done to resolve it. When a carbon monoxide detector goes off, no one likes it.

But most people just ignore it until the next time it goes off. Rather than risk switching it off and exposing your home to harmful gases.

Carbon monoxide stopped going OFF after about 10 seconds, but you can still hear a high-pitched annoying beeping.
You’ll only do one thing before it turns off: replace the batteries.

That’s presumably why it’s suddenly turned OFF. No one has been cooking or anything else like that while you’ve been gone, so that’s probably not why it turned OFF.

This has happened a few times before, but never for an extended period of time, usually only a minute or two before stopping on its own.

We’ll look at what causes your CO detector to go OFF and offer some simple remedies to keep it from going off throughout this blog post.

 Carbon Monoxide Detector Went OFF Then Stopped

Solutions for when your Carbon Monoxide Detector goes OFF

  • Carbon monoxide (CO) is an odourless, colourless gas that is highly toxic.
  • It’s naturally produced when certain fuels such as natural gas, propane, or oil burn. This means it’s present in your home whenever you use fossil fuels for heat and cooking.
  • The best solution for protecting your family from high levels of CO is having a Carbon Monoxide Detector installed in your home and making sure it works properly.
  •  If you hear a beeping sound coming from your Carbon Monoxide Detector, unplug all of your appliances that could be causing carbon monoxide build-up. Then, call someone who can fix it immediately—don’t wait until later.
  • Even if there aren’t any immediate dangers in your home at first glance.
  • Turn on fans and open windows to help ventilate air before calling anyone about fixing the problem.

Causes of a going OFF Carbon Monoxide Detector

There can be many causes of a going off carbon monoxide detector, but they are primarily divided into four categories:

Causes related to an actual leak

Causes related to improper installation or maintenance

Improperly calibrated detectors and improper use of detectors. While you should call a professional if your detector is going off. it’s important to understand why it’s happening so that you can remedy any issues before calling for help.

For example, if your home is experiencing flooding due to broken pipes in another room.

Even though your CO levels may be high. The cause isn’t likely something that needs immediate attention from a professional.

In fact, opening windows and doors can actually help alleviate problems caused by flooding (though you should still contact professionals).

However, if your carbon monoxide levels are abnormally high even after doing so. It may indicate an issue with your heating system that does need repair immediately.

Also go through:  Levoit Air Purifier Not Working Solved


The most likely cause of a carbon monoxide detector going OFF unexpectedly is dust.

If you have it in your home, open up some windows and turn on your exhaust fan for about 30 minutes, and it should go OFF.

However, if that doesn’t solve your problem immediately or you want to make sure it doesn’t happen again, call an HVAC technician as soon as possible.