System not bringing home down to desire temperature. Client had thermostat off and just turned the thermostat on this morning. Explain to client that it could take a while to cool the home down to temperature if thermostat has been off for a period of time. Also noticed that all air filters are plugged, which could’ve been causing system to freeze up overnight. Also, there is no attic insulation. Explained to client that home will take a lot longer to cool down to temperature with no insulation in attic as well as an increase in her electrical bill. Replaced filters that customer supplied, did not have filter for the main hallway return. She said she will go out and get one today. Advise client to see how system operates over the next few days. Everything working fine while I was there. Client would like service manager to come out and evaluate system as well.