Suction line temp of 165 in heat mode with an outdoor ambient of 72. Delta T of 32. Removed dirty filter. Added algae tablets to drain pan. Brushed dust off of EVAP coil. Removed dust from return grill. Capacitors inside and outside are good. Blower is fairly dirty and recommended a lvl 1 pull and clean. Homeowner had to leave for work. Will consider cleaning blower during Spring visit. System is functioning normally.