How to Fix Smoke Detector Beeps Twice Then Stopped? - 2025

A smoke detector is a device designed to detect the presence of smoke in the air and emit an audible alarm to alert individuals of a potential fire. These devices are an essential component of fire safety systems and are commonly used in homes, businesses, and various public spaces. Smoke detectors play a crucial role in providing early warning in the event of a fire, allowing occupants to evacuate the premises and emergency responders to be notified promptly.

When a smoke detector is beeping twice every other second, this is a prime indication of a low battery. However, there are instances in which the detector beeps twice due to other reasons involving a software bug or not charging the backup battery.

Here, in this blog, we’ll answer what smoke detector beeps twice then stopped means and what to do in order to access the problem and prevent the “beeping” sound permanently.

Smoke Detector Beeps Twice Then Stopped (How to fix it) - 2025

Solution 1: Power Cycle Your Smoke Detector

One way to stop the beeping of your smoke detector is to perform a power cycle process. A power cycle helps in discharging the smoke detector out of the electricity that's remaining. Restart our device and refresh all the services.

Below are the steps to fix smoke alarm beeping twice that you need to follow to power cycle your smoke detector. 

Step 1: Take an object that can help you reach the smoke detector. 

Step 2: If you have a hardwired smoke detector, you are required to twist the upper part.

Step 3: You can eject the battery for both detectors. 

Step 4: Wait for a few minutes and then you will see that there is no battery.  

Step 5: Wait for some time and then you will see that the detector has no batteries. 

Step 6: Place the batteries back into the smoke detector. 

Step 7: Wait for your device to turn on. 

Solution 2: Use the Hush Button 

A lot of detectors have a silence or hush button going to the lower panel that will make your device stop beeping. All you have to do is to press the bush button once to stop your detector from making any sounds. Therefore, it mutes the device. Almost every smoke detector has a silence button in a separate place.

In a lot of cases, it is found in the upper panel of your device. You may also see the word HUSH on the button and then you need to check if you need to hold or single-press the button. Your smoke detector will enter an alarm mode till the time it is released. When you single press the Hush button, it will be muted until you see the next indication. 

Solution 3: Reset the Power Source of Your Smoke Detector 

The battery inside the detector gets charged through electrical installation. If you find any insufficiency in the power supply of your breaker, then the detector will beep twice and let you know about the problem.

Below are the steps that you need to follow to reset the circuit breaker of your smoke detector.  

Step 1: Navigate to the panel of your breaker. 

Step 2: After that, you need to launch the circuit breaker. 

Step 3: Now, you need to look for the switch of your room with the detector. 

Step 4: Press the switch in the downwards position to power off. 

Step 5: Wait for at least 60 seconds. 

Step 6: After that, you need to power ON. 

Step 7: Listen to the beeping of your smoke detector. 

Solution 4: Reinstall Your Smoke Detector

One of the things that you can try to resolve your problem is to reinstall your smoke detector,

Below are the steps that you need to follow for the reinstallation of the smoke detector. 

Step 1: Power off your smoke detector using a circuit breaker switch. 

Step 2: After that, twist open your detector from the bracket. 

Step 3: Remove the battery by opening the compartment. 

Step 4: Take out the pin connector cables. 

Step 5: Take the cables to the electrical box. 

Step 6: Put it back in the smoke detector together.