That could mean that your filter needs to be changed, which is causing the furnace to overcompensate and eventually suck exhaust gases into the home. You should change the filters on a monthly basis.
Solve Common Furnace Problems with 9 Easy Fixes
TECHO Touchless Toilet Flu... $41.99
Optimus H-1322 Portable 2-... $10.88
Lumber Jack 100% Hardwood ... $15.49
Prosvet E6 1200 Lumen Cree... $12.99
BLACK+DECKER LDX120C 20-Vo... $54.00
Custom Leathercraft 125M H... $7.95
Safe Paw Non-Toxic Ice Mel... $10.88
WORX 16-Inch 14.5 Amp Elec... $40.00
Suncast SC2700 20-Inch Sno... $24.40
BHCLIGHT LED String Lights... $7.99
The latest in news, tips, & inspiration delivered right to your inbox.
We'll send you an email as soon as Bob Vila Academy launches
Enroll now and learn DIY basics from the next generation of home improvement experts