Hikinggma, Take a deep breath. Now, for your A/C to work, your master switch must be pressed at the top position. In this position, ALL systems work, both 120v and 12v.
In the middle position, only the refer (in 12v mode) is powered. Called "travel mode".
In the bottom position only the refer (12v only) and PUMP work.
So, with power from the house and a FULLY charged battery, everything should work.
If the switch is in the top position, you can turn on the A/C, ---BUT--- only to see if it runs. Unless you have a 30 amp breaker in the house, you run the risk of damage to the A/C with an underpowered circuit.
With the master switch in the bottom position, try and raise the top, it will squeal when fully up-- then pull the release cable and push the lower switch and it should come down.
Let us know what happens. Hope the Hi Lo is close to the house.
Tree