RV Repair: new Duo therm AC not comming on, duo therm ac, volt line

Question
QUESTION: just replaced my old duo therm with a new duo therm model#57915.541 also had to use the comfort control center upgrade kit #3310014.000 to use with the confort control center, my problem is i have instaled the kit and ac ran a 12 volt line, turned unit on and reset the confort control center like instructuons say i got the FF on the display like the manual says but when i release the mode and zone butten i get a EE display on control center, compressor dosn't come nor the fan nothing comes on only the contol center comes on, checked the 12 volt its hooked up to the red and black wires and the 120 volt checks good and hooked up, any help will be greatly appreciated Thanks Jorge

ANSWER: Jorge, Is this a single unit? If it is are the dip switches in the right position? I will need to know this in order for me to help you more. Thanks, Bill

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QUESTION: bill yes the dip switches are all on the off position like the factory sent it i have the furnace hooked up to a anoalog switch and it works fine, also this is a single unit 13500 btu thanks again for your help Jorge

Answer
Jorge, Duo therm airs get the 12 volt power from the control box in the ceiling at the ac. This power is then sent to the T-Stat and the rest of the wires go for various settings. There will be 2 wires there for the furnace as well. Without looking at what has been done it would be very hard for me to tell you where to look. Giving model numbers is good for those with the books and cross reference sheets but I don't have them. I can only know what everything looks like with the information you give me. So how many wires does the control box have coming out on the 12 volt side? Just getting power to the T-Stat is not what needs done. If the T-Stat is one that gets power from a phone cord then things are different. This is one that you might want to take to a shop. They can or should be able to tell you just what it is in less then 30 minutes. Thanks, Bill