When we took delivery of our 379 FL and did the walk through, other than the normal things you check, we didn't check the a/c operation but did check the furnace which was operational. When I first attempted to start the heat pump at home that was on my build sheet for the bedroom, I saw that is was not an option on the thermostat. After unsuccessfully trying to reprogram that stat, I climbed up in the roof and found there was no heat pump only a standard air conditioner. I contacted Aloha RV, and they quickly found it was left off the build at the factory. They made one phone call to the factory and my heat pump is being sent today. Absolutely amazing customer service from Aloha RV in Albuquerque, and especially Grand Design. Thank you both for all you do!