| Complete list of two maintenances: |
| Adjust gas pressure as needed |
Measure for correct air flow |
| Adjust pilot as needed |
Lubricate all moving parts as needed |
| Check combustion air |
Inspect gas piping |
| Check thermostat calibration |
Inspect evaporator coil |
| Tighten electrical connections |
Inspect blower components |
| Clean condenser coil |
Test furnace proper starting capabilities |
| Clean furnace ignition assembly |
Measure volts and amps |
| Measure temperature difference |
Monitor cooling cycle |
| Monitor flue draft |
Monitor refrigerant pressure |
| Monitor heating cycle |
Test condensate drains |
| Test furnace safety controls |
Test AC starting capabilities |
| Test AC safety controls |
Adjust furnace burner assembly |
| Check heat exchanger for damage & corrosion |
Clean furnace burner assembly |