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What Should an HVAC Diagnostic Check List Include?Spring cooling tune-ups and fall heating check-ups are vital to keep your HVAC system operating at peak efficiency, so you’ll save money on energy use and avoid unnecessary repair costs. When performed by a trained and experienced professional, the maintenance check list for an HVAC diagnostic will likely include the following tasks:

  • Examining the thermostat to ensure it’s functioning properly.

  • Lubricating the moving parts of all motors. Inadequate lubrication results in friction that can increase your energy consumption.

  • Checking the system controls and start-up cycle. Your system must start, run, and shut off properly to operate safely.

  • Tightening all the electrical connections. This assures safe operation and helps extend the lifespan of critical system components.

  • Checking for correct current and voltage on all motors.

  • Inspecting the condensate drain. A blocked drain on a furnace, heat pump or air conditioner can result in increased humidity levels, or a back-up that causes water damage to a home.

  • Cleaning, lubricating and adjusting the blower assembly. This can increase the comfort level in your home, and eliminate airflow issues that can lower your system’s efficiency by as much as 15 percent.

  • Checking and adjusting the cooling system’s refrigerant level. Too little or too much refrigerant can decrease energy efficiency and shorten the equipment’s lifespan.

  • Cleaning the condenser and evaporator coils. When the coils are dirty, your air conditioner has to run for longer periods. This can increase your energy costs, and put added strain on the equipment.

  • Checking the furnace fuel lines and connections. This helps prevent unhealthy and dangerous gas leaks, and lowers the risk of fire.

  • Testing for proper gas pressure and burner combustion.

  • Examining the heat exchanger for signs of damage or cracks that could result in deadly carbon monoxide (CO) leaks.

  • Cleaning or replacing the air filter. To maintain your system’s efficiency and prevent possible damage that leads to a premature failure, you should check and clean or replace the filter monthly.

For more information about the importance of an HVAC diagnostic, contact us at Aladdin Heating & Cooling. We’ve served Southeast Michigan, including St. Clair Shores and Southfield, since 1945.

Our goal is to help educate our customers in Warren, Michigan about energy and home comfort issues (specific to HVAC systems).  For more information about HVAC diagnostics and other HVAC topics, download our free Home Comfort Resource guide.

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