Arrived on site to perforspring maintenance on a 2015 Lennox system. Condenser located in back yard p. Furnace and evaporator coil located in attic. Client concerns were with Lennox amp as it would not let them log in advise that is a manufacturer server problem thermostat is operating properly no issues at this time. Client stated Other concer was compressor made a weird noise when it operates. Advise if noise dose not appear while my maintenance I will be unable to provide a answer to noise. Client understood. Did attic and indoor unit inspection. Found black flex ducting used and insulation is good. Found filter dirty. Client supplied his own filter and replaced filter. Checked all electrical wiring, connections, circuit board, and components. all good. Blower assembly is good. Wheel is clean. Motor is good at this time. Amp drawls on blower motor are good. Evaporator coil is clean. Drain lines are good. Blew drain lines out. Tested Drain pump and is operational. Found no protectio