Carbon Monoxide Concerns
EmergencyCarbon monoxide detector alerts or symptoms suggesting CO presence.
Carbon monoxide is colorless and odorless, making it especially dangerous. CO detectors are essential safety devices. Any alarm should be taken seriously. Common sources include furnaces with cracked heat exchangers, blocked flues, and malfunctioning fuel-burning appliances. Annual maintenance helps prevent CO issues.
Symptoms to Look For
Possible Causes
What You Can Check
Before calling for service, try these safe checks that may resolve simple issues:
When to Call a Professional
CO detector alarms are emergencies. Leave the home, call 911 if anyone has symptoms, and do not return until professionals have cleared the home. Have HVAC equipment inspected before reuse.
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Prevention Tips
Frequently Asked Questions
Why is my CO detector going off?
It detected carbon monoxide above safe levels. Leave immediately and call 911. Common sources include furnaces, water heaters, fireplaces, and attached garages with running vehicles.
Can my furnace produce carbon monoxide?
All fuel-burning furnaces produce CO during combustion. Normally it vents safely outside. Cracked heat exchangers or blocked flues can allow CO into your home. Annual inspection is critical.
How often should CO detectors be replaced?
Most CO detectors last 5-7 years. Check manufacturer recommendations. Replace immediately if malfunctioning. Test monthly.
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