[QUOTE=CPE;76246. Some units do not vent outside (and be sure the outside vent flap lock tabs are in the open position if it vents outside.
.[/QUOTE]
That might be my problem I never knew there where tabs holding vent flap. I just went out and checked sure enough, there where tabs holding the flap shut. Thanks for the info
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2016 Montana 3720RL
2015 Chevy Silverado 3500 HD Duromax :
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2012 Montana High Country 313RE
2012 Chevy Silverado 2500 HD Duromax
2010 Palimino Bronco
2005 Chevy Silverado CC 1500