2 system home. Gas furnaces with straight cool condenser. Main home installed in 2014. Gas flow and igniter are in range and operating as they should. Heat exchanger is good. Limit switch is functional. PSC blower motor is good. Blower wheel and evap coil are clean. 45/5 dual run capacitor and contactor are good. Needs 20x24x5 filter Back apartment: installed in 2014. Gas flow and igniter are in range and operating as they should. Heat exchanger is good. Limit switch is functional. PSC blower motor is good. Blower wheel and evap coil are clean. 35/5 dual run capacitor and contactor are good.