Standard Heating and Cooling Furnace Tune-up

1. Check thermostat calibration - An improperly calibrated thermostat will call for more or less
heating then desired. The former will cost you money, the latter will cost you comfort.

2. Replace Air Filter - A dirty air filter can reduce heating efficiency and increase costly energy
usage and affect the reliability of the equipment.

3. Check and adjust air flow for proper temperature rise - One way to assure maximum
efficiency of your heating system.

4. Check and adjust blower components - Proper adjustment and cleanliness of the blower
and components is necessary for adequate air flow, it also assures proper capacity and
equipment reliability.

5. Lubricate all moving parts when necessary - Poor lubrication causes drag in the motor and
drive shaft, thereby requiring more electricity to overcome resistance. Lack of lubrication can
ruin the bearings and burn out the motor.

6. Check and adjust burner operation - To insure smooth ignition, pilot light and burners are
observed for proper burning.

7. Check and clean heat exchanger - To assure proper fuel combustion and avoid the
possibility of creating carbon monoxide in the house.

8. Check high limit control - The principal control in the furnace to prevent overheating and
possible damage to the unit and the structure it is located in.

9. Check fan control - To assure fan comes on and goes off at predetermined temperatures in
order to deliver the proper temperature of air into the home.

10. Check and clean flue - Necessary to assure proper fuel draft and also to prevent flue
obstructions.

11. Check manifold gas pressure - Proper pressure is required to control fuel input to the
furnace burners.

12. Check heat anticipator - Located in the thermostat, it insures that the furnace will supply
the heat when necessary.