To Next PageTo Next PageWhat to do if my Carrier KIDDE 900-CUAR-V is beeping low battery?
If your Carrier Smoke Alarm indicates a low battery, you can push the button once to silence it for 24 hours. Pushing the button again will clear HushTM and perform a test. Remember to replace the batteries as soon as possible. After 7 days, the low battery notifications cannot be silenced.
What to do if my Carrier KIDDE 900-CUAR-V Smoke Alarm indicates End of Unit Life?
If your Carrier Smoke Alarm signals the end of its unit life, you can push the button once to silence the alarm for 24 hours. Pushing the button again will clear HushTM and perform a test. Note that 7 days after the End of Unit Life notification begins, the alarm cannot be silenced. You should remove the alarm, dispose of it, and replace it as soon as possible.
What to do if my Carrier Smoke Alarm shows Photo Fault?
If your Carrier Smoke Alarm indicates a Photo Fault, first see the Cleaning Your Alarm section. Then push the button once to attempt to reset the unit. If the error continues, remove the alarm, dispose of the unit, and replace it as soon as possible.
What to do if my Carrier KIDDE 900-CUAR-V shows CO Fault?
If your Carrier Smoke Alarm shows a CO Fault, push the button once to attempt to reset the unit. If the error continues, remove the alarm, dispose of the unit, and replace it as soon as possible.
What to do if my Carrier KIDDE 900-CUAR-V shows Memory Fault?
If your Carrier Smoke Alarm displays a Memory Fault, push the button once to attempt to reset the unit. If the error continues, remove the alarm, dispose of the unit, and replace it as soon as possible.
How to fix false low battery on Carrier Smoke Alarm?
To resolve a false low battery alert on your Carrier Smoke Alarm (when AC power is connected before activating the backup batteries), pull the battery pull tab to activate the backup batteries.
What to do if my Carrier KIDDE 900-CUAR-V Smoke Alarm shows MCU Failure?
If your Carrier Smoke Alarm indicates an MCU Failure, remove the alarm, dispose of it, and replace it as soon as possible.
Details electrical connection requirements and wiring standards for alarm installation.
Provides step-by-step instructions for connecting the AC power harness to the alarm unit.
Lists compatible Kidde alarm models for AC hardwire interconnection.
Details the procedure for performing weekly manual tests on the alarm system.
Explains how to identify and handle nuisance smoke alarms from non-fire events.
Describes how to respond to nuisance carbon monoxide alarms and potential danger.
Explains the low battery condition, its indicators, and replacement requirements.
Lists common household appliances and conditions that can produce carbon monoxide.
Provides advice on annual inspections, appliance installation, and recognizing CO risks.
Details the signs and effects of mild, medium, and extreme carbon monoxide poisoning.
Guides users on creating and practicing a home escape plan for fire emergencies.
Offers general advice on preventing fires, teaching children safety, and using fire extinguishers.
Explains NFPA's role in fire safety standards and recommendations for alarm placement.
Discusses the benefits of placing additional smoke alarms for enhanced detection coverage.
Provides specific fire detection installation recommendations for California households.
Outlines the FCC compliance rules and conditions for the operation of this device.
This user guide describes the Kidde Model 900-CUAR-V, a combination photoelectric smoke and carbon monoxide (CO) alarm with hardwire interconnect and voice features. This device is designed for residential use to detect the presence of both smoke and carbon monoxide, providing early warning to occupants.
The alarm operates on 120V AC hardwire power and includes two replaceable AA backup batteries, ensuring continuous operation even during power outages. It features a voice message system that provides clear audible alerts, distinguishing between smoke and CO hazards. For smoke detection, the alarm sounds three long beeps with the voice message "Fire!" followed by a 1.5-second pause and repeating. For carbon monoxide detection, it emits four quick beeps with the voice message "Warning! Carbon Monoxide" repeating every 5 seconds. The red LED on the initiating alarm blinks in time with the alarm pattern for both smoke and CO events. In an interconnected system, when one hardwired unit sounds an alarm, all other compatible hardwired or interconnected units will also alarm, ensuring widespread notification throughout the residence. The alarm is equipped with internal self-testing components that continuously monitor its operational status, generating a fault signal if an issue is detected.
The alarm incorporates a HUSH™ mode, allowing users to temporarily silence nuisance alarms caused by known, non-life-threatening conditions like cooking smoke. Pressing the button on the initiating unit will silence the smoke alarm for 8-10 minutes, provided the smoke is not too dense. If smoke persists after the HUSH™ period, the alarm will reactivate. For CO alarms, a "RESET" function is available. Pressing the button during a CO alarm allows the unit to reset calculations and re-check for CO presence. If the unit re-alarms within six minutes, it indicates high and potentially dangerous levels of CO, prompting immediate action. The device is designed to be user-friendly, with clear visual and audible indicators for various operational modes, including normal standby, test mode, alarm memory, and end-of-unit life. The alarm memory feature retains information about past smoke or CO alarm events for 24 hours, indicated by blinking red LEDs.
Regular maintenance is crucial for the alarm's optimal performance. The manufacturer recommends replacing the alarm ten years from its date code. To aid in this, a "Replace by" date label is provided on the unit. Weekly manual testing is required to verify proper operation; this is done by pressing and releasing the test/hush button. The alarm should be cleaned at least once a year. The interior (sensing chamber) can be cleaned using compressed air or a vacuum cleaner hose to remove dust from the openings around the perimeter. The exterior can be wiped with a damp cloth, using only water to avoid damaging the unit. It is important to avoid using detergents, solvents, air fresheners, hair spray, or other aerosols near the alarm, as these can interfere with the sensors or cause false readings. Painting the unit is also not recommended as it can seal the vents and impair detection. If the alarm enters a fault mode after cleaning, it may need to be replaced. The device also features a low battery monitor circuit that provides a "Low Battery" warning when the backup batteries are nearing depletion, prompting replacement within seven days. Only specified AA battery brands (Energizer E91, Gold Peak 15A, or Golden Power GLR6A) should be used, and mixing old and new batteries or different types (alkaline, standard, rechargeable) is not advised. The alarm is sealed, and the cover is not removable, preventing users from attempting internal repairs that could void the warranty.
General| Power Source | 120V AC |
|---|---|
| Sensor Type | Photoelectric |
| Alarm Sound Level | 85 dB at 10 feet |
| Hush Feature | Yes |
| LED Indicator | Yes |
| Operating Temperature | 40°F to 100°F (4°C to 38°C) |
| Compliance | UL217 |
| Battery Backup | 9V battery |
| Interconnectable | Yes |
| Weight | 0.5 pounds |
| Humidity Range | 10% to 95% relative humidity (non-condensing) |
