Relay module issue.
SOURCE: rv air conditioner
Check the temperature control and see if it clicks when you turn it off and then back on. Check to see if the compressor is running. If the compressor is running but not cooling you may have a leak and lost the refrigerant charge.
SOURCE: How to put refrigerant in Demotic RV Rooftop Air Conditioner
You will need to add a self tapping port to the suction side of the unit. You will have to determine what the size of the pipe is and then go to a local a/c supply company and buy one. It's kind of like a self tapping supply for water but for high pressure. Hope this helps. I would also put one in on the high side as well so you don't blow the valve in the compressor if you over charge it or the system is dirty.
SOURCE: Furnace and Air conditioner run at the same time
Odds are u did just that or wrong thermostat,If u don't have a digrahm get one from Library.
SOURCE: two air conditioners & two furnaces with one thermostat
use relays to combine the to and isolate from each other or observing polarity's, you should be able to parallel the connections from your thermostat
SOURCE: odor when air conditioner turned on
Hi, If its a smell other then electrical burning, I would say it is coming from the evaporator coil inside. Take out the filter and clean it if it is the washable type and try and clean the coil. They make coil cleaner you may be able to get at your RV dealer to do this. This is the only thing I can think of that would have any odor. Unless there is something outside it is drawing in. The system is sealed and would not emit any odors other then a hot motor. You can check up top by removing cover to check the motors and to see if any critters have crawled inside. Let me no, keep me posed on what you find and if you need more help.
Sincerely,
Shastalaker7
PS Check the indoor blower motor also, it may be getting hot and ready to fail.
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