bartman62

I have a 2011 430qs motorhome, Charleston by Forest River, we have (2) 15,000-BTU Dometic Duo-therms that can't cool the coach when the o.a. is over 90*F. Both units run on full power but can't make more than a 5*f. difference from o.a. Is my only option to add another roof-top unit?

Thanks for the humor Bill, but seriously these are (2) 15000 btu dometic duo-therms, I have checked everything you mentioned. Is there something wrong with my coach or do I need to add another roof-top?

we have a 430qs charleston by forest river that cannot keep the coach cool with both 15,000 btu units running on high when the weather is between 80. and 95. f any thoughts would be appreciated.