
kn cob b lpm manual
Kidde KN-COB-B-LPM Manual: Overview
This manual details the Kidde KN-COB-B-LPM carbon monoxide alarm, offering seven years of protection. It covers installation, operation, maintenance, and warranty service procedures.
Product Identification

The Kidde KN-COB-B-LPM is a battery-operated carbon monoxide (CO) alarm designed for residential use. This alarm utilizes advanced electrochemical sensing technology to detect the presence of this odorless, colorless, and deadly gas. Identifying your specific model is crucial for accessing the correct support and documentation. The product number, 9CO5, is prominently displayed on the device itself, often located on the back or within the battery compartment.
This alarm features a seven-year sealed battery, eliminating the need for frequent battery replacements. The KN-COB-B-LPM is designed to provide continuous monitoring and alert occupants to dangerous CO levels. Proper identification ensures you have the appropriate manual and can understand the alarm’s specific features and limitations.
Intended Use and Safety Precautions
The Kidde KN-COB-B-LPM carbon monoxide alarm is intended for indoor use only, providing early warning of potentially dangerous CO concentrations. It is crucial to install this alarm in accordance with local codes and regulations. This device does not detect smoke, fire, or other gases. Always test the alarm monthly to ensure proper operation.
Safety precautions are paramount: never ignore the alarm, even if no CO is detected. Investigate the source immediately upon activation. Do not attempt to repair the alarm yourself; contact Kidde for warranty service. This alarm is not a substitute for proper maintenance of fuel-burning appliances. Ensure adequate ventilation and regular inspections of furnaces, stoves, and fireplaces.

Installation Guide
Proper installation of the Kidde KN-COB-B-LPM is vital for effective CO detection. Follow these steps for mounting, battery installation, and initial alarm testing.
Mounting Location Requirements
Optimal placement of your Kidde KN-COB-B-LPM carbon monoxide alarm is crucial for reliable performance. Mount the alarm on a wall or ceiling, ideally in a central location accessible to all areas of the home. Avoid placing it near fuel-burning appliances, windows, doors, or areas with high humidity or direct airflow.
Specifically, do not install in garages, kitchens, or bathrooms. Ensure the alarm is at least five feet away from any fuel-burning appliance. Mounting height should be within the manufacturer’s recommended range, typically four to six inches from the ceiling. Proper location ensures swift and accurate detection of dangerous carbon monoxide levels, safeguarding your family’s well-being.
Battery Installation Instructions
To install batteries in your Kidde KN-COB-B-LPM, locate the battery compartment, usually on the back or side of the alarm. Open the compartment and insert a new battery, ensuring correct polarity as indicated by the markings (+ and -). Typically, this alarm requires a standard AA battery.
Confirm the battery is securely seated within the compartment. After installation, the alarm should initiate a self-test, indicated by a flashing LED. If the alarm doesn’t respond, double-check the battery’s polarity and ensure it’s fresh. Regular battery checks are vital for continuous protection. Replace the battery immediately when the low battery warning signal activates.
Testing the Alarm
Regularly testing your Kidde KN-COB-B-LPM is crucial to ensure proper functionality. Locate the ‘Test’ button on the alarm’s faceplate. Press and hold this button for several seconds. The alarm should emit a loud, distinct beeping sound, simulating a carbon monoxide event.
Verify the alarm’s sound is clearly audible from all areas of your home, especially bedrooms. If the alarm doesn’t sound during testing, immediately replace the battery and retest. Do not use open flames or other hazardous materials to test the alarm. Testing should be performed monthly, and after any relocation or battery change. Consistent testing confirms reliable protection.
Alarm Operation
The KN-COB-B-LPM utilizes LED indicators and distinct alarm sounds to signal carbon monoxide presence, ensuring prompt response and family safety.
Understanding LED Indicators
The Kidde KN-COB-B-LPM employs a clear LED indicator system to communicate its operational status. A flashing green LED, occurring every 30 seconds, confirms the unit is functioning correctly and continuously monitoring for carbon monoxide. This regular flash provides visual reassurance of ongoing protection.
However, a flashing red LED signifies the detection of carbon monoxide, accompanied by the alarm sound. The frequency of the red flash correlates with the CO concentration level, indicating the severity of the hazard. A solid red LED indicates a critical level of carbon monoxide is present, demanding immediate action.
Furthermore, a yellow flashing LED signals a low battery condition, prompting immediate battery replacement to maintain continuous protection. Understanding these LED signals is crucial for effective alarm operation and ensuring your family’s safety.
Alarm Sounds and Meanings
The Kidde KN-COB-B-LPM utilizes distinct audible signals to alert occupants to different conditions. A series of four beeps, repeating every five to ten seconds, indicates the presence of carbon monoxide. This pattern differentiates CO detection from other potential alarm triggers. The alarm’s intensity increases with the concentration of detected carbon monoxide, providing a proportional warning.
A single chirp, occurring every 30 seconds, signifies a low battery condition, prompting immediate replacement. This distinct sound prevents confusion with the CO alarm signal. A brief, intermittent chirping sound may also indicate an end-of-life condition, signaling the need for a replacement unit.
Recognizing these specific alarm sounds is vital for a swift and appropriate response, ensuring the safety of everyone within the protected area.
Carbon Monoxide Detection Principles
The Kidde KN-COB-B-LPM employs an electrochemical sensor to detect carbon monoxide (CO). This sensor measures the concentration of CO in the surrounding air through a chemical reaction. When CO molecules interact with the sensor’s internal components, an electrical current is generated, proportional to the CO level.
This current is then processed by the alarm’s circuitry, triggering an audible alarm if CO levels exceed established safety thresholds. The electrochemical sensor is highly accurate and reliable, offering long-term performance and minimal false alarms. It’s designed to detect CO even at low concentrations, providing early warning.
Regular testing ensures the sensor’s continued functionality and accurate CO detection capabilities, safeguarding against this silent and deadly gas.

Maintenance and Troubleshooting
Regular cleaning and testing are crucial. Address low battery signals promptly. Diagnostic steps help resolve alarm malfunctions, ensuring continued safety and reliable operation.
Regular Cleaning Procedures
To maintain optimal performance of your Kidde KN-COB-B-LPM carbon monoxide alarm, periodic cleaning is essential. Dust, dirt, or other pollutants can accumulate over time, potentially interfering with the sensor’s accuracy and responsiveness. It is recommended to clean the alarm at least every six months, or more frequently in dusty environments.
Begin by removing the alarm from its mounting location. Using a soft cloth, gently wipe the exterior casing to remove any visible dust or debris. Avoid using water, solvents, or abrasive cleaners, as these could damage the electronic components. Pay particular attention to the vent openings, ensuring they are free from obstruction. Do not disassemble the alarm for cleaning purposes, as this could void the warranty and compromise its functionality. After cleaning, re-mount the alarm securely and test its operation to confirm it is functioning correctly.
Low Battery Troubleshooting
If your Kidde KN-COB-B-LPM alarm begins to emit a chirping sound, or displays a low battery warning indicator – typically a flashing yellow or red LED – it signifies the battery needs replacement. This alarm is battery-operated, and a depleted battery compromises its ability to detect carbon monoxide.
To resolve this, immediately replace the existing battery with a fresh one of the correct type, as specified in the manual. Ensure proper polarity during installation. After replacing the battery, test the alarm using the test button to verify functionality. If the low battery signal persists after battery replacement, double-check the battery installation and consider replacing the alarm if the issue continues, as it may indicate an internal malfunction. Prompt battery replacement is crucial for continuous protection.
Alarm Malfunction Diagnostics
If your Kidde KN-COB-B-LPM alarm exhibits unusual behavior – such as continuous beeping, no response to the test button, or erratic LED flashing – it may indicate a malfunction. First, attempt to reset the alarm by removing and re-installing the battery. If the problem persists, carefully review the manual for specific error codes or patterns indicated by the LED.
Do not attempt to repair the alarm yourself; it contains sensitive electronic components. If the alarm fails to operate correctly after resetting and consulting the manual, it should be replaced immediately. Contact Kidde’s customer support for assistance or to initiate a warranty claim if applicable. A malfunctioning alarm provides no protection against carbon monoxide poisoning.

Technical Specifications
The KN-COB-B-LPM utilizes sophisticated electronics for CO detection, boasting a seven-year lifespan and battery-powered operation with specific alarm characteristics.
Operating Characteristics
The Kidde KN-COB-B-LPM carbon monoxide alarm is designed for continuous residential operation, diligently monitoring CO levels. It features a sophisticated electrochemical sensor, known for its accuracy and stability over its extended seven-year lifespan. This sensor detects carbon monoxide, a colorless, odorless gas, providing crucial protection.
The alarm operates on a standard battery, ensuring functionality even during power outages. A green LED indicator flashes every 30 seconds, confirming proper operation. The unit is engineered to minimize nuisance alarms while remaining highly sensitive to dangerous CO concentrations. It’s crucial to understand that this device is a safety tool, and regular testing is recommended to verify its functionality. Proper placement, as detailed in the installation guide, is vital for optimal performance.
Alarm Characteristics
The Kidde KN-COB-B-LPM alarm distinguishes itself through distinct audible and visual signals. Upon detecting dangerous carbon monoxide levels, it emits a loud, 85-decibel temporal pattern – four beeps followed by silence – repeating to ensure wake-up notification. Simultaneously, a red LED illuminates, providing a clear visual warning.
A low-battery signal is indicated by a distinct pattern of chirps, alerting users to replace the battery promptly. During normal operation, a green LED flashes every 30 seconds, confirming the unit’s functionality. The alarm is designed to differentiate between genuine CO threats and transient sources, minimizing false alarms. It’s vital to remember that any alarm activation demands immediate attention and evacuation to fresh air, followed by contacting emergency services.
Power Source Details
The Kidde KN-COB-B-LPM carbon monoxide alarm operates solely on battery power, offering flexibility in placement without reliance on household AC wiring. It requires one standard 9-volt battery, which is not included with the unit. Battery type is crucial; only use a fresh, high-quality alkaline battery for optimal performance and longevity.
The alarm incorporates a low-battery warning system, chirping intermittently to signal when the battery is nearing depletion. Prompt battery replacement is essential to maintain continuous protection. Battery life typically lasts for several months, but can vary based on usage and ambient temperature. Regular testing, as outlined in the manual, helps monitor battery status and ensures reliable operation.

Warranty Information
Kidde provides a limited warranty for the KN-COB-B-LPM, covering defects in materials and workmanship. Warranty service involves exchange, not repair.
Warranty Coverage Details
Kidde warrants the KN-COB-B-LPM carbon monoxide alarm to be free from defects in material and workmanship for a period of seven years from the date of purchase. This warranty covers the alarm itself, but does not cover batteries, damage resulting from improper use, installation, or maintenance, or any consequential damages. The warranty is limited to the original purchaser and is non-transferable.
Specifically, the warranty covers failures during normal household use that prevent the alarm from detecting carbon monoxide as designed. It does not cover damage caused by accidents, abuse, misuse, alteration, electrical surges, or acts of God. Kidde’s obligation under this warranty is limited to the repair or replacement of the defective alarm, at Kidde’s discretion. Proof of purchase is required for all warranty claims.
Warranty Service Procedures
To obtain warranty service for your Kidde KN-COB-B-LPM carbon monoxide alarm, first verify the alarm is still within the seven-year warranty period from the date of purchase. Retain your proof of purchase, as it is required for all claims. Many cases can be resolved quickly through a direct exchange program. Contact Kidde customer support to initiate the process and receive instructions.
If a direct exchange isn’t possible, you may be asked to return the defective alarm to Kidde for inspection. Kidde will cover the cost of return shipping. Upon receiving the alarm, Kidde will determine if the defect is covered under the warranty. If covered, a replacement alarm will be provided. Kidde reserves the right to repair or replace the alarm at its discretion.
Limitations of Warranty
This warranty for the Kidde KN-COB-B-LPM alarm is limited to the original retail purchaser and does not cover abuse, misuse, accidental damage, or normal wear and tear. Kidde is not liable for any incidental or consequential damages resulting from a defective alarm. The warranty is void if the alarm has been tampered with, disassembled, or altered in any way.
Furthermore, the warranty does not apply to battery depletion or failure. This alarm is designed to detect carbon monoxide, but Kidde makes no guarantee that it will prevent all carbon monoxide poisoning. Proper installation, testing, and maintenance are crucial for optimal performance. This warranty is the sole and exclusive remedy, and Kidde disclaims all other warranties, expressed or implied.

End-of-Life Considerations
The KN-COB-B-LPM alarm provides seven years of operation, signaling end-of-life with a chirp. Dispose of it properly and replace with a new unit.
End-of-Life Warning Signal
The Kidde KN-COB-B-LPM carbon monoxide alarm is designed with a limited lifespan of seven years to ensure reliable performance. After this period, the sensor’s accuracy may degrade, potentially compromising its ability to detect dangerous carbon monoxide levels effectively.
To alert you to this, the alarm will emit a distinct end-of-life warning signal. This signal consists of a series of chirps – specifically, a chirp every 30 seconds. This is not a low battery warning or an indication of a carbon monoxide event. It signifies that the alarm has reached the end of its useful life and must be replaced immediately.
Ignoring this signal puts you and your family at risk. The alarm will not continue to function correctly after this warning, even if the battery is new. Prompt replacement is crucial for continued protection against the silent and deadly threat of carbon monoxide.
Proper Disposal Methods
When your Kidde KN-COB-B-LPM carbon monoxide alarm reaches its end-of-life, responsible disposal is essential. Do not simply discard it with household trash. This alarm contains electronic components and a battery that require careful handling to minimize environmental impact.
The preferred method is to check with your local waste management authority for electronic recycling options. Many communities offer designated drop-off locations or collection events for electronic waste, often free of charge. Alternatively, some retailers that sell carbon monoxide alarms may offer take-back programs.
Remove the batteries before disposal. Dispose of the batteries separately at a designated battery recycling facility. By following these guidelines, you contribute to environmental sustainability and ensure safe handling of potentially hazardous materials.
Replacement Alarm Recommendations
Upon receiving the end-of-life warning signal from your Kidde KN-COB-B-LPM alarm, immediate replacement is crucial. Carbon monoxide protection should never be compromised; Consider upgrading to a newer model with advanced features, such as digital displays or interconnected capabilities.
Kidde offers a range of carbon monoxide alarms to suit various needs and budgets. Explore models with extended lifespans to reduce replacement frequency. Interconnected alarms provide whole-house protection, alerting you to danger regardless of the alarm’s location.
Ensure the new alarm meets current safety standards and is appropriate for your home’s layout. Regularly test the new alarm after installation to confirm proper functionality. Prioritize safety by maintaining continuous carbon monoxide detection.

Frequently Asked Questions (FAQ)
This section addresses common user inquiries regarding the Kidde KN-COB-B-LPM alarm, including troubleshooting, operation, and warranty service details.
Common User Questions

Users frequently inquire about the flashing green LED, which indicates proper operation with a flash every 30 seconds. Another common question concerns the low battery signal – a clear indication that battery replacement is needed. Many ask about the alarm’s lifespan; the KN-COB-B-LPM offers seven years of continuous protection.
Some users are curious about the end-of-life warning signal, designed to alert them when the unit needs replacing after its operational life. Questions also arise regarding proper disposal methods for the alarm. Finally, understanding the difference between the alarm’s sounds – a chirp versus a full alarm – is a frequent point of clarification for new owners, ensuring they understand potential carbon monoxide presence.
Troubleshooting Common Issues
If the alarm chirps intermittently, it usually signals a low battery; replace it immediately. A constant alarm indicates a potential carbon monoxide leak – evacuate and call emergency services. If nuisance alarms occur, ensure the unit isn’t near humidity sources or combustible gases.

For unresponsive alarms, verify the battery is correctly installed and has sufficient charge. If the unit fails to test properly, it may be malfunctioning and require replacement. Remember, the KN-COB-B-LPM has an end-of-life signal; if it sounds, the alarm must be replaced. Always consult the full manual for detailed diagnostics and warranty service options.
Contact Information for Support
For immediate assistance regarding your Kidde KN-COB-B-LPM alarm, consult the comprehensive user manual included with your device. Further support and warranty service inquiries can be directed to Kidde’s customer support team. While specific contact details aren’t readily available in the provided snippets, visiting the official Kidde website is recommended.
Online resources often provide FAQs and troubleshooting guides. If you encounter issues not addressed in the manual or online, contacting Kidde directly ensures you receive accurate and specific guidance for your model. Remember to have your product’s model number (KN-COB-B-LPM) and purchase date available when contacting support.