The Orange Volunteer Fire Department was called out twice in 90 minutes on Sunday evening.
The first call came in at 9:39 p.m., when a police officer detected the odor of smoke on Oakview Drive.
Fire department officers also smelled smoke and searched the area for the source.
About 16 minutes after the call, the Chief released all the fire trucks to return to the stations.
An hour after closing the ticket, the firefighters were called out again at 11:01 p.m. for an activated residential carbon monoxide detector on Wildwood Drive.
Responding firefighters measured the C.O. at 140ppm (parts per million) inside the home.
Any amount over 10 ppm indicates there is an unusual source for CO and the residents should get out of the home immediately.
One fire engine provided a large fan to help ventilate the house.
All crews were cleared to leave before 11:30 p.m. There was no indication that anyone was ill from the incident.