A typical HVAC maintenance agreement should include the following:

	1.	A minimum of two visits per year. Once to evaluate your heating equipment and once for your cooling equipment. More frequent visits may be necessary depending on how your equipment is used, or if your equipment is in a particularly “dirty” environment.
	2.	Check all electrical connections, measure voltage and current. Faulty electrical connections can cause unsafe operation of your system. Incorrect voltage and/or current can cause overload and equipment burn-out.
	3.	Lubricate all moving parts. Lubrication reduces friction. Friction can cause wear and reduce energy efficiency.
	4.	Inspect and clear the condensate drain. A plugged drain can cause water damage and potentially create an environment conducive to mold growth, effecting indoor humidity levels and air quality.
	5.	Diagnostic Start and Test. One of the most important checks, this diagnostic test helps to reveal any irregularities in system function, BEFORE they result in system downtime, overtime emergency service, loss of product, etc.
	6.	Check thermostat settings. To ensure the proper control of the cooling and heating system.
	7.	Inspect, clean or change air filters.A dirty filter can increase energy costs and damage your equipment, leading to early failure.

For Cooling Equipment:

	1.	Clean evaporator and condenser air conditioning coils. Dirty coils reduce air flow, causing the system to run harder and longer, increasing energy costs and reducing the life of the equipment.
	2.	Check your refrigerant level. Too much or too little refrigerant will make your system less efficient increasing energy costs and reducing the life of the equipment. If low refrigerant levels are discovered, a leak-check will be performed.
	3.	Clean and adjust blower components. Airflow problems can reduce your system’s efficiency by up to 15 percent!

For Heating Equipment:

	1.	Check and clean all gas or oil connections, gas pressure, burner combustion and heat exchanger. Improperly operating gas or oil connections and/or a dirty burner or cracked heat exchanger are fire hazards and can contribute to health problems. Both cause the equipment to operate less efficiently.
	2.	Inspect and change, as necessary, all components.
	3.	Change oil filters and clean filter assembly.
	4.	Check for leaks on boilers.