HVAC accounts for roughly 40-percent of energy usage in a company building’s total electricity bill. If you’re a business owner, having your heating, ventilation, and air conditioning (HVAC) checked and repaired on a scheduled basis will extend its lifespan and keep it running efficiently.

This HVAC maintenance checklist includes the best practices to do when inspecting your air conditioning system. If you follow this checklist, you can reduce costly breakdowns and extend the lifespan of your HVAC.

Spring/Summer - Cooling Focused

• Inspect the thermostats and their controls to ensure they’re functioning properly.
• Test if the fan motor is working correctly.
• Check the electrical system and all its connections.
• Inspect for any mold, debris, and dust.
• Remove any debris on the surface of the HVAC unit if it’s set up outdoors.
• Examine any possible leaks in the refrigerant charge.
• Clean the condensers and evaporator coils.
• Evaluate the blades and blowers if they have the proper airflow.
• Remove any clogs and clean the drain lines.
• Replace all filters and any worn-out belts or pulleys.
• Check for any leaks on the HVAC cabinet.
• Take out any stagnant water from its drain pans.
• Change batteries when needed.
• Lubricate any moving parts.
• Securely close the HVAC cabinet door.

Fall/ Winter - Heating Focused

• Regularly check the thermostat to make sure it’s at the right temperature.
• Evaluate the gas pressure and ignition burner assembly.
• Inspect heat exchanger and other heating elements for any damages to prevent any carbon monoxide leaks.
• Remove clogs and clean drain lines to prevent overflows.
• Check for any gas leaks in your gas furnace.
• Examine your flue system and make certain that it’s properly attached.
• Check the heat pump.
• Change the filters as often as once a month and no later than three months.
• Lubricate motors, bearings, and other moving parts
• Replace worn out pulleys and belts

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