Furnace maintenance. Conducted Fall-Winter safety inspection and reset furnace to factory specifications. Checked motors, relays, capacitors, contractors, circuit boards, pressure switches, bearings, fuses, wiring and connections, seals, fan, gas valve voltage and pressure, ignitor, flame sensor, thermostat, and heat exchanger. Cleaned out drain trap and all hoses and drain line. Replaced air filter. All components are working at manufacturer specifications at this time. Customer renewed annual VIP Service Plan membership.