My AC works in the ZONE 1 & part of Zone 2 but...not in the back portion

[melvage76]

Hi,

My AC is working great where the master bedroom and the kitchen/main area is but in the back of our 5th wheel there is no air flow on FAN, AC or anything. We can not seem to figure it out. We have a 2015 Grand Design Solitude ST366DEN. Any suggestion would be helpful.

Thank you.

Melinda & Chris