Hobogoneat10ExplorerDec 13, 2014Sewer smell when using exhaust fansHave 2014 Open Range Journeyer. When we use the exhaust fans there is a terrible sewer smell coming from kitchen drains and the cabinet underneath. Black line is closed, grey line is open. We use a g...Show More
copeland343ExplorerDec 13, 2014Check vacuum valve under sink and close gray valve you are sucking sewer gas in from sewer system.