Heat maintenance. Checked inducer, indoor blower motor both within manufacturer specs. Heat safeties are working as intended. Pressure switch hose and port are clear. Drain line is clear, replaced filter. System is running correctly and efficiently in heat mode. Homeowner has a concern about her air conditioning not blowing as cold as she believes it should. Spoke with her and her husband to let them know we would have to return on a warmer day to get correct pressures and go from there.