Check system and found that thermostat wire was shorted out due to a rodent eating through the wires where it came to the wall. There’s not much slack there but I was able to isolate the two wires for cooling and electrical tape them so they would not short out anymore if anything else happens to these wires a new wire will have to be polled I was not able to access the thermostat wire from inside due to the ceiling being finished. I performed a quick check on the system and verified everything was operating properly however the unit does not have a filter in it it takes an 18 x 24 x 4 I let the customer know on the size and they are going to order. I also would recommend having a blower cleaning done due to it being dirty from not having a filter in there for a bit.