Emergency Furnace RepairTo keep your home HVAC system running well, you need to give your system an annual checkup. To help you out, we have created this HVAC maintenance checklist.

Doing preventative HVAC maintenance in the spring is the best thing you can do for your HVAC system. It keeps your system running efficiently and will save you money in the long term.

By performing maintenance in spring, you will be ready for the hot summer months when your air conditioner will be working hard and running constantly. Noone wants to call the air conditioner repair service when it’s 90 degrees and your home is sweltering hot and humid.


American Standard Platinum FurnaceSpring HVAC Maintenance Checklist

  • Inspect the indoor coil for cleanliness and clean if necessary.
  • Inspect the furnace or air handler blower assembly for proper operation and cleanliness.
  • Change your filters every 1-3 months depending on your filter.
  • Inspect all electrical connections.
  • Check the operation of the compressor and outdoor fan motor.
  • Check the refrigerant levels. If levels are low, check for a leak first before you replace the refrigerant.
  • Check the drainage hole at the base of your air conditioning unit. Use a paper clip or wire to poke through the drainage hole to make sure it is free from any blockage.
  • If you have a dehumidifier, remove the housing and let the unit dry out completely. Vacuum the surface area and any crevices.

Ideally, you should check your HVAC system bi-annually, once in the spring and again in the fall. This way you can ensure your air conditioning or central air is working before the summer and your furnace heating is working before winter. 


To maximize the performance of your HVAC system for energy savings, follow this checklist from EnergyStar.

Energy StarMaintain your equipment to prevent future problems and unwanted costs. Keep your cooling and heating system at peak performance by having a contractor do annual pre-season check-ups. Contractors get busy once summer and winter come, so it’s best to check the cooling system in the spring and the heating system in the fall. To remember, you might plan the check-ups around the time changes in the spring and fall.


A typical maintenance check-up should include the following.

  • Check thermostat settings to ensure the cooling and heating system keeps you comfortable when you are home and saves energy while you are away.
  • Tighten all electrical connections and measure voltage and current on motors. Faulty electrical connections can cause unsafe operation of your system and reduce the life of major components.
  • Lubricate all moving parts. Parts that lack lubrication cause friction in motors and increases the amount of electricity you use.
  • Check and inspect the condensate drain in your central air conditioner, furnace and/or heat pump (when in cooling mode). A plugged drain can cause water damage in the house and affect indoor humidity levels.
  • Check controls of the system to ensure proper and safe operation. Check the starting cycle of the equipment to assure the system starts, operates, and shuts off properly.

Cooling Specific

  • Clean evaporator and condenser air conditioning coils. Dirty coils reduce the system’s ability to cool your home and cause the system to run longer, increasing energy costs and reducing the life of the equipment.
  • Check your central air conditioner’s refrigerant level and adjust if necessary. Too much or too little refrigerant will make your system less efficient increasing energy costs and reducing the life of the equipment.
  • Clean and adjust blower components to provide proper system airflow for greater comfort levels. Airflow problems can reduce your system’s efficiency by up to 15 percent.

Heating Specific

  • Check all gas (or oil) connections, gas pressure, burner combustion and heat exchanger. Improperly operating gas (or oil) connections are a fire hazard and can contribute to health problems. A dirty burner or cracked heat exchanger causes improper burner operation. Either can cause the equipment to operate less safely and efficiently.

Actions To Do Yourself

  • Inspect, clean, or change air filters once a month in your central air conditioner, furnace, and/or heat pump. Your contractor can show you how to do this. A dirty filter can increase energy costs and damage your equipment, leading to early failure.


A Climate Services & Systems Inc.

Would you like a professional to inspect and maintain your HVAC system?

Contact us online or phone 630-393-9500

We serve Warrenville, Carol Stream, Downers Grove, Geneva, Lombard, West Chicago, Naperville, and Batavia and nearby communities.