6 days ago · Step 3: The smoke detector should start flashing red again. Step 4: Test the smoke detector by pressing and holding the test button for approximately 10 seconds. Step 5: The smoke detector should sound an alarm, indicating it is working correctly. If it does not work, contact the manufacturer or a professional electrician. A First Alert Smoke Alarm blinking red typically indicates that the unit is in its normal operating state. The red light flashes every 40-60 seconds to signal proper functioning. ... Knowing the meaning behind the red flashing light can provide peace of mind that your living environment is under surveillance for potential fire hazards. Always ...If no heat or smoke was detected then I can call out the engineer as a fault with the alarm and not be charged. 2) Can I do anything to make the alarm stop flashing red. 3) Can I do something to reset the tamper switch so if an engineer does end up coming round I won't get charged for tampering with it. Also just to add on the panel itself, it ...Alarm Condition: When the alarm senses products of combustion and goes into alarm the red LED will flash one flash per second. The flashing LED and pulsating alarm will continue until the air is cleared. When units are interconnected, only the red LED of the alarm that senses the smoke or is being tested (the originating …Tobacco giant Philip Morris International (PMI) would like everyone to quit smoking. Sort of. But Philip Morris, maker of Marlboros, is a major reason there’s even harm to reduce. ... 2. Batteries are not properly installed. Installing the batteries incorrectly can cause the smoke detector to blink red. When the batteries are not installed properly, the in-built battery backup will warn you of the same. Some manufacturers also program the detectors to chirp in such a scenario. Step 1: Turn off the Power: The first step in resetting a smoke detector is to turn off the power to the device. This ensures your safety during the process and prevents any potential electrical hazards. To turn off the power, locate the circuit breaker panel in your home. This panel is usually found in the basement, garage, or utility room.Feb 8, 2018 ... Get this stock video and more royalty-free footage. red flashing light bulb for sm... ✔️Best Price Guaranteed ✔️Simple licensing.My SimpliSafe smoke detector/fire alarm is showing a constant yellow light and an intermittent flashing red light. I have changed batteries twice in 7 days. I have made sure the red plastic arm in the battery compartment is in the correct position and the battery is inserted correctly.Remember: Smoke detector beeping is there to inform you that something is not quite right. Figuring out the actual reason for the beeping is the safest approach. If you want to minimize the risk of false alarms in your smoke detectors, keep them clean, be conscious of environmental factors, and ensure your batteries haven’t expired.To snooze a low battery beep for 10 hours, press the Test/Hush button for 3 seconds. And if the smoke alarm continues to beep once every 40 seconds after a new battery replacement, Unclip the alarm from the base. Remove the new battery. Press and hold the test button for 20 seconds. Replace the new battery and clip it back to the base.Tobacco giant Philip Morris International (PMI) would like everyone to quit smoking. Sort of. But Philip Morris, maker of Marlboros, is a major reason there’s even harm to reduce. ...Here are some steps you can take to determine the cause of the blinking red light: 1. Check the battery: The most common reason for a smoke detector to blink red every 5 seconds is a low battery. Replace the battery with a fresh one and see if the blinking stops. If the issue persists, move on to the next step. 2.If your smoke or heat alarm is flashing an amber LED, sometimes with a chirp, it may be due to your alarm being incorrectly attached to the baseplate. If correctly attached to the baseplate, your alarm should show a green LED flashing regularly, with a red LED flash every 45 seconds. If this is not the case, your alarm is not fitted correctly.Nov 23, 2022 · Why Is My Smoke Detector Blinking Red Every 10 Seconds. A smoke detector that is blinking red every ten seconds has detected smoke. Usually, by the time this occurs, it has already sent an alarm and stopped ringing. What this means is that the smoke is not very dense. If you burned dinner, then it’s nothing to worry about. RED LED. GREEN LED. Flashes On once every. 40-45 ... Originating smoke alarm - the alarm has sensed smoke ... Non-originating smoke alarm - an interconnected smoke ...Residential Smoke alarms do not “poll” in the same sense as addressable systems. The common operation for the LED on the residential smoke alarm would be on steady to show it has AC power, it should only flash intermittently for abnormal indications. This is a broad brush stroke responses though for OP’s sake. r/firealarms.Vivint Smoke Detector (SMK001) - LEDs. LEDs. Status ... 3 Yellow Flashes Every 4 Seconds, Freeze Warning ... Red, Yellow, Green Flash in Sequence, Power-Up, One ...Oct 14, 2008 ... My son (4.5 yrs) is scared of the flashing red light in the smoke alarms (on the landings and hallway) and can't play happily in his bedroom ...Low battery: The red blinking light serves as a warning that the batteries need to be replaced. Most detectors will also emit a chirping noise when the batteries run low. Alarm is active: When smoke is detected, the alarm will sound and the light will flash rapidly to alert occupants of danger.Low battery. One of the most common reasons why a smoke detector might be flashing red is because the battery is low. Smoke detectors are powered by batteries, and when the battery runs low, the detector will start to beep or flash. If the battery is low, you should replace it as soon as possible. Many hotels have staff who can replace the ...Replacing a smoke detector’s battery is crucial to a family’s safety. To change the batteries in a smoke detector, first find the smoke detectors in the home. There should be at le...Jun 9, 2023 · Low battery. One of the most common reasons why a smoke detector might be flashing red is because the battery is low. Smoke detectors are powered by batteries, and when the battery runs low, the detector will start to beep or flash. If the battery is low, you should replace it as soon as possible. Many hotels have staff who can replace the ... Documents. The Kidde i9050 is a full size, ionization, battery operated smoke alarm designed to protect you and your family from the dangers of smoke and fire. The i9050 is powered by a 9V battery, providing continuous protection even during power outages. This unit includes a flashing red LED to indicate the alarm is receiving power.Check the red light emitting diode (LED) on the face of the unit. It flashes in patterns depending on the event the device wants to report. If the red LED flashes once a minute and the device chirps once a minute, it’s telling you the battery is low or missing. Check the LED again. If the red LED flashes rapidly and the horn pattern is three ...Boils aren’t usually a cause for alarm, but they can lead to a potentially worse infection, so it’s a good idea to take care of them. Boils often start out as a red bump that will ...Jul 12, 2021 ... JustAnswer Customer: Now we have a second smoke detector blinking the same red light. JustAnswer Customer: They are dated July, 2011 ...Photo editing app Lensa AI went viral this week for making AI-generated stylized avatars. Its popularity raises alarm with artists. If your Instagram is awash in algorithmically ge...Unlock the mystery: Why does a smoke detector flash red? Explore answers in our quick guide.🔍🚨 #SmokeDetector #RedFlashIonization smoke alarms are more susceptible to nuisance alarms when placed near a bathroom or other potentially high humidity area. Near Cold Air Returns Smoke alarms placed near a cold air return are more susceptible to nuisance alarms because dusty air can be blown through the alarm sensing chamber. Smoke alarm may need to be …The Kidde Smoke Detector flashes red to alert you to potential fire hazards, providing a clear and unmistakable warning to keep you and your loved ones safe. … Flashing green on a carbon monoxide detector does NOT necessarily mean danger the way a smoke detector’s red blinking indicates fire risk. Green confirms functionality. However, if a CO detector is blinking green rapidly or alternating between colors, this could signal an issue or malfunction. Better. Retail Price*. $31.47. Detail. Key Features. Specifications. Documents. The Kidde i9010 is a 10-year, sealed battery operated smoke alarm featuring Hush™, Alarm Memory, and a self-activation mechanism that makes installation simple and easy. The alarm will automatically activate when it is attached to the mounting bracket; there are ...Alarm State: When the alarm mode is triggered, the detector will give out three long beeps in 1.5 seconds. Along with the beeps, the LED will flash red. This is, in essence, the main state in which the smoke detector flashes red. This is when the smoke is at an alarming level. Leaving the Alarm Mode: When the …I stopped setting an alarm. I stopped caring ....about the early bird getting the worm, how most successful people wake up before 5am, how I’m told I should try to... Edi...Check the red light emitting diode (LED) on the face of the unit. It flashes in patterns depending on the event the device wants to report. If the red LED flashes once a minute and the device chirps once a minute, it’s telling you the battery is low or missing. Check the LED again. If the red LED flashes rapidly and the horn pattern is three ...The flashing red light indicates that the smoke alarm is in working order. It also indicates that the smoke alarm is connected to a working battery. ... All smoke alarms have a red light that flashes once every 40-60 seconds to clearly indicate that they are operating. When the Smoke Alarm is activated, the same red light …If the danger is smoke related the devices will be sounding the alarm in a three beep pattern – ‘beep beep beep’, with the red LED also flashing three times. If the danger is Carbon Monoxide related the devices will be sounding the alarm in a four beep pattern – ‘beep beep beep beep’ with the red LED also flashing four times. LED INDICATORS: This smoke alarm is equipped with red and green LED indica- tors. The green LED (when illuminated) indicates the presence of AC power. The red LED has four modes of operation: Standby Condition: The red LED will flash every 40 seconds to indicate that the smoke alarm is operating properly. Page 11: Battery Installation And Removal Documents. The Kidde i9050 is a full size, ionization, battery operated smoke alarm designed to protect you and your family from the dangers of smoke and fire. The i9050 is powered by a 9V battery, providing continuous protection even during power outages. This unit includes a flashing red LED to indicate the alarm is receiving power.Low battery: The red blinking light serves as a warning that the batteries need to be replaced. Most detectors will also emit a chirping noise when the batteries run low. Alarm is active: When smoke is detected, the alarm will sound and the light will flash rapidly to alert occupants of danger.While staying in bed and snoozing your alarm will certainly make you late for work, reader Mythimna shows us how you can use it to keep you moving quickly in the morning. While sta...If the alarm starts beeping once every 40 seconds, the backup battery needs replacing. If you wish to replace the battery later, press the test/hush button to snooze the chirping for 10 hours. 2. False alarm. If your smoke alarms are going off when there is no smoke present, firstly identify the unit which has been triggered.Residential Smoke alarms do not “poll” in the same sense as addressable systems. The common operation for the LED on the residential smoke alarm would be on steady to show it has AC power, it should only flash intermittently for abnormal indications. This is a broad brush stroke responses though for OP’s sake. r/firealarms. Remove the smoke alarm from the mounting bracket and disconnect the power. Remove the battery (for a sealed-battery model, see Battery Settings for a 10-Year Alarm to learn more). Press and hold the test button for five seconds. Reconnect the power and reinstall the battery. NOTE: The unit will chirp once when the power is restored, but should ... Fire alarms are an essential safety feature in any home or commercial building. They provide early detection of smoke and fire, allowing occupants to evacuate quickly and preventin...Kidde smoke detector flashing green light. The flashing green light on a Kidde smoke detector usually indicates that it is functioning properly. It’s a visual signal to show that the unit is receiving power and performing self-checks. If the light continues to flash green without any interruptions, it suggests that the smoke detector is in ...Smoke Alarm: Blinks every 1 second: Pattern or steady: In Alarm: Smoke has been detected. ADT has been contacted. ... The red and green LEDs will flash once every 5 seconds for approximately 20 seconds until the power-up cycle is complete. Reinstall the detector housing onto the base. Test the smoke detector. …Red FLASHING every Red LED flashes every 40 seconds is Normal 40 seconds. Page 15: Battery Installation 1397-7201-01_HG2000:_ 2017.4.10 2:32 PM Page 13 BATTERY INSTALLATION , REPLACEMENTAND TEST Battery Installation 8.1.1 The smoke alarm uses one 9V battery to automatically provide back-up power to the alarm if AC power fails.Some alarms have a red or green light that blinks every few minutes, while other models blink rapidly or shine a solid light. The light isn't a cause for concern unless the alarm is also beeping or chirping. The light may change color after latch mode. To reset the light on your alarm back to default mode, press the Test/Silence …Jul 27, 2023 · Three colors blink in a normal functioning smoke detector. They are usually RAG (Red, Amber, Green). Green – A green led indicates that the safety system is turned on and working. Yellow – Typically, the yellow light indicates that the smoke detector’s battery is insufficient and needs to be replaced. 10-year non removable lithium battery. If the alarm is beeping about once a minute with the red light flashing at the same time, indicates that the lithium battery is partially depleted and the alarm needs to be replaced (check the “replace by” date marked on the side of the alarm). Look at the smoke alarm and ensure that the green LED is ...Hi team, Thanks for your help. I have the Ei141RC Aico smoke alarm - wired with 9V battery backup I have 10 of them through my property - all connected on one circuit The green lights are constantly on for all of them meaning mains power seems stable I have recently replaced all batteries with 9V...Common Causes of the Blinking Red Light on your Smoke Detector and How to Fix Them. 1. The smoke detector battery is low. 2. Dust and dirt are clogging the …Kidde Smoke and Carbon Monoxide Alarm Manual. 2 AA Battery Powered. 2-LED Display. Peak Level Memory. Test/Hush® button. Voice Message System. For questions concerning your Smoke and Carbon Monoxide Alarm, please call our Product Support Line at 1-800-880-6788. For your convenience, write down the following information. If you call our …A red light could mean different things depending on your smoke detector. Don’t be alarmed if you see your smoke detector blinking red. Typically, a blinking red light means there’s a minor issue that you …Check the Battery. Start by checking the battery in the smoke detector. A low battery can cause the red light to blink. If the battery is low or near the end of its life, replace it with a fresh one. Ensure that the battery is inserted correctly, …All other units in the interconnect system will sound an alarm but their red LED's will NOT be flashing. Alarm Memory: This smoke alarm is equipped with an alarm memory, which provides a visual indication when an alarm has been activated. The red LED will illuminate for about 1.5 seconds every 20 seconds to indicate the …Press and hold the HUSH button for 3 seconds on the initiating smoke alarm with the flashing RED light. Pressing HUSH on the initiating alarm will silence all other interconnected units, so you can then find what caused the alarm. Next steps. Hush mode will silence the smoke alarms for a period of 9 minutes.If the light is flashing on the smoke detector it usually means the battery is low and needs to be changed out. You should always change ...Frequently asked questions to help with your First Alert smoke alarm, carbon monoxide alarms, fire extinguisher, safes and more. ... On First Alert® carbon monoxide alarms, the red light flashes to show the Carbon Monoxide Alarm is properly receiving battery power. If you do not see the red light flashing, change the batteries in the alarm ...2GIG SMKT3-345 Smoke Alarm Issues. Support. 2gig. dayrate (dayrate) May 14, 2014, 2:50pm 1. After learning all 3 portions of two smoke detectors, they still flash yellow every 4 seconds and beep every 48 seconds. On one, I was able to learn it into the system by triggering it. The other failed that repeatedly and had to be added via manual ...The iTunes Store has almost as many alarm clocks as it does to-do apps, so it’s difficult to choose the right one. In our tests, we found Wake Alarm Clock to be the best thanks to ...A flashing red light can indicate one of the following. The smoke detector is in alarm mode, meaning it has detected smoke and is sounding the alarm. The red light may flash rapidly or in sync with the alarm sound. The device is in test mode, meaning it is being tested by pressing the test button. The red light may flash with a loud beep ...In most cases chirping hard-wired smoke alarms can be stopped by pressing and holding the reset button. Wait a few minutes to see if the chirping stops. If it does not, try cleanin...Check that the red led on the cover flashes once every 40 seconds to indicate normal operation. If the memory has been set indicating that the Alarm ... On the Optical Smoke Alarm only (Ei166RC) if the unit beeps and the red light does not flash at the same time it indicates a problem with the smokeFind out how smoke alarms work, the cost of running them and why all bedrooms should be near a smoke alarm. Skip links and keyboard navigation. ... Locate the smoke alarm with the rapidly flashing red light. This shows which smoke alarm has gone off. In unit complexes, the central alarm system (controlled by the local fire … How to Reset an Alarm. April 28, 2021. If the unit is hardwired or just battery-operated, press the Test button. You don't need to hold it down. Press and release, and it should go back to normal "stand by" mode. Watch this video to find out how to make your home safe by installing smoke and carbon monoxide alarms, testing for lead and radon gas, and child safety tips. Expert Advice On Impr...Step 1: Understand What the Red Blinking Light Means. The red blinking light on a smoke detector typically indicates a low battery. This means that the smoke detector is running on a low voltage and is in need of a replacement battery. If the smoke detector is connected to your home’s electrical system, the red blinking light may also ... LED INDICATORS: This smoke alarm is equipped with red and green LED indica- tors. The green LED (when illuminated) indicates the presence of AC power. The red LED has four modes of operation: Standby Condition: The red LED will flash every 40 seconds to indicate that the smoke alarm is operating properly. Page 11: Battery Installation And Removal Jan 27, 2024 · The blinking red and green lights on your smoke detector typically indicate a specific issue. Red usually signifies a problem with the power source or the alarm system itself, while green often indicates that the device is receiving power. The combination of red and green flashes might suggest a malfunction or low battery. Follow the steps below to restart your smoke detector: Step 1: Disconnect power to the smoke detector using the circuit breaker. Step 2: Wait a few seconds and reconnect the smoke detector to power. Step 3: The smoke detector should start flashing red again.The red LED flashes once every 40-60 seconds to indicate the smoke alarm and battery are functioning correctly. Green LED The green LED is illuminated when the mains power (220-240V ) is on. Memory Function If one of the alarm indicator (RED LED) is flashing every 4 seconds this indicatesthat a smoke alarm, has …Do you know how to install a smoke detector? Find out how to install a smoke detector in this article from HowStuffWorks. Advertisement Smoke detectors are an essential safety tool...Red light flashing every 10 seconds with no sounds: It is normal after a test. The usual flashing will resume after 5 minutes. Red flashing light and alarming sound: It has detected smoke nearby. Move to a fresh, airy location soon. Red light flashing every 25-30 seconds: There is some malfunctioning, or your device is close to its lifespan.Battery Powered Mains Powered; 10-year non removable lithium battery. If the alarm is beeping about once a minute with the red light flashing at the same time, indicates that the lithium battery is partially depleted and the alarm needs to be replaced (check the “replace by” date marked on the side of the alarm).Residential Smoke alarms do not “poll” in the same sense as addressable systems. The common operation for the LED on the residential smoke alarm would be on steady to show it has AC power, it should only flash intermittently for abnormal indications. This is a broad brush stroke responses though for OP’s sake. r/firealarms.Red light flashing every 10 seconds with no sounds: It is normal after a test. The usual flashing will resume after 5 minutes. Red flashing light and alarming sound: It has detected smoke nearby. Move to a fresh, airy location soon. Red light flashing every 25-30 seconds: There is some malfunctioning, or your device is close to its lifespan.Having a smoke alarm in your home is crucial for keeping you and your loved ones safe from potential fire hazards. However, if your smoke alarm keeps chirping, it could be a sign t...A flashing red light on a smoke detector alarm can be disconcerting, signaling potential issues that warrant attention. Understanding the reasons behind this light indicator is crucial for homeowners to address the underlying causes effectively. Here are the common reasons for a flashing red light on a smoke …Seeing your smoke alarm blinking red can be scary. But it can also mean that there’s something wrong with your device. Contents hide. 1 Replace the Battery. 2 Clean the Sensors. 3 Run a Test. 4 Replace the Smoke …2. The Batteries are Low. If your kidde smoke alarm red blinking light flashes every minute or so, it is likely the batteries are low. Fortunately, this is a very common occurrence and usually just means the detector needs new batteries. Alternatively, the sensors inside the smoke detector may be dirty or need to be replaced.Aug 30, 2022 · Be sure to check your manual, as the meaning of beeps, chirps, and blinking lights varies depending on the FireX model. 2. Battery and Power Problems. A dying battery or unreliable power supply is the most common cause of false alarms on the FireX smoke alarm. Replace the battery in the smoke alarm at least once a year to ensure proper operation. Safelincs. Administrators. 623. Gender:Male. Posted March 27, 2019. Hi Beth. The red light flashing every second, even when the alarm is silenced, indicates that it thinks there is smoke present at all times. As you say they have been vacuumed so it shouldn’t be a dust problem. That leaves two possibilities:Rapid Flashing Red Light: If you see a rapid flashing red light, it means that the alarm has detected smoke or fire. In this case, you should take immediate action and evacuate the building. Intermittent Red Flashing Light: An intermittent red flashing light indicates a low battery. This light code indicates that the alarm’s battery is ...During pregnancy, substance abuse can harm your baby. Learn about why to stay away from smoking, drinking, and illegal drugs, and how to get help. When you are pregnant, you are no...Tobacco giant Philip Morris International (PMI) would like everyone to quit smoking. Sort of. But Philip Morris, maker of Marlboros, is a major reason there’s even harm to reduce. ... A handy troubleshooting chart from the User Guide. Last Updated: 547d. Consult the User Guide for more troubleshooting info. The Kidde Smoke Detector flashes red to alert you to potential fire hazards, providing a clear and unmistakable warning to keep you and your loved ones safe. …
This tutorial will explain what the blinking red light on your smoke detector indicates! In addition, we will go through various blinking indicators on your ... . Is native cruelty free
Smoke Alarm User’s Guide P3010H – Photoelectric Smoke Alarm w/ Safety Light P3010B – Photoelectric Smoke Alarm w/ Voice Alarm P3010L – Photoelectric Smoke Alarm Where Purchased: Date of Purchase: For questions concerning your Smoke Alarm please call Product Support at 1-800-880-6788. If a detector has a blinking red or green light every second or so, with or without an audible alarm, that usually means two things: Constant blinking without an audible alarm may mean the batteries are starting to die, and you need to replace them now. Also may mean the detector is 10 years old or older, and has reached its end of life phase ... This tutorial will explain what the blinking red light on your smoke detector indicates! In addition, we will go through various blinking indicators on your ... The Smoke detector has Low battery power. When you see a red LED light blinking in your …How to Reset an Alarm. April 28, 2021. If the unit is hardwired or just battery-operated, press the Test button. You don't need to hold it down. Press and release, and it should go back to normal "stand by" mode.Kidde Smoke Alarm User's Guide model: i12060. i12060 smoke alarm pdf manual download. Also for: I12060a. ... LED’s will NOT be flashing. This smoke alarm is equipped with an alarm memory, which provides a visual indication when an alarm has been activated. The red LED will illuminate for about 1.5 seconds every 16 seconds to indicate …The flashing red light on smoke detectors can indicate several things: Low Battery: In many cases, a flashing red light is a signal that the battery in the smoke detector is running low and needs to be replaced. It serves as a reminder to ensure the smoke detector remains operational at all times. It is crucial to address low battery …To reset all your alarms press the black pairing button five times, until the red LED on the front flashes ten times. The pacing/speed at which you press the button is important - too fast or slow and it often won't work. So it can take a few attempts to get it right. Once all units have been reset perform a reconnection.Resetting the smoke alarm will stop the noise. Follow these easy steps to reset your First Alert smoke alarm. Remove your First Alert smoke alarm from its position on your wall or ceiling. Carefully open the cover and remove the batteries. Long press (15-30 seconds), then release the Test button.Here are some steps you can take to determine the cause of the blinking red light: 1. Check the battery: The most common reason for a smoke detector to blink red every 5 seconds is a low battery. Replace the battery with a fresh one and see if the blinking stops. If the issue persists, move on to the next step. 2.What Does A Flashing Red Light On A Smoke Detector Mean? Modified: February 24, 2024. Written by: Isabella Mitchell. Learn what a flashing red light on a …The flashing red light on smoke detectors can indicate several things: Low Battery: In many cases, a flashing red light is a signal that the battery in the smoke detector is running low and needs to be replaced. It serves as a reminder to ensure the smoke detector remains operational at all times. It is crucial to address low battery …Remember: Smoke detector beeping is there to inform you that something is not quite right. Figuring out the actual reason for the beeping is the safest approach. If you want to minimize the risk of false alarms in your smoke detectors, keep them clean, be conscious of environmental factors, and ensure your batteries haven’t expired.Does smoking starve the heart of oxygen? Why, yes it does, and that's certainly not a good thing. Find out how smoking starves the heart of oxygen. Advertisement Smoking is one of...Meaning: This light indicates that the smoke detector is functioning properly and has power. Possible Causes: A steady green light signifies that the smoke detector is receiving power and is in a normal operating state. It indicates that the detector is connected to a power source and functioning correctly. If the power …Jul 27, 2023 · Three colors blink in a normal functioning smoke detector. They are usually RAG (Red, Amber, Green). Green – A green led indicates that the safety system is turned on and working. Yellow – Typically, the yellow light indicates that the smoke detector’s battery is insufficient and needs to be replaced. ONLY THE TRIGGERING ALARM (FLASHING RED LIGHT) NEEDS TO BE DEACTIVATED. This alarm is triggering the other alarms as they are all interconnected. IDENTIFY ...Ionization Smoke Detectors: These detectors use a small amount of radioactive material to ionize the air inside a chamber. When smoke particles enter the chamber, they disrupt the ionization process, triggering the alarm. ... Continuous Flashing Red Light: A continuous flashing red light is often a warning sign that the smoke … Blinking red lights are fairly common in smoke detectors, and it should be easy for you to discover why yours is doing the blinking. 1. Batteries are Low. Many First Alert smoke detectors have an LED light, which blinks red when the batteries need to be changed. In addition, a chirping or beeping noise may be heard. .