Guest Blog: Essential HVAC Preventative Maintenance Checklist


Ensuring your HVAC (heating, ventilation and air conditioning) unit remains in peak condition can do more than just save you time and money.

In some instances, it can also help ensure your sanity remains intact.

Imagine a malfunctioning unit in the middle of a cold, dreary winter night or a hot and scorching summer day.

Ensure you do not have to go through all the inconvenience and discomfort a breakdown can bring by keeping in mind the following basic preventative tips.

Essential HVAC Maintenance

Check the fan.

See to it that the motor and blades are in tip top shape.

Inspect the air filters.

To maintain air flow and air quality, make sure to replace the air filters regularly.

Inspect thermostat settings.

This allows you to keep your environment comfortable when you are at home and save up on energy when you’re away.

Inspect outdoor unit.

The outdoor HVAC unit should be free from any debris and dirt for it to continue to function accordingly and efficiently.

Assess the system’s control.

To help guarantee your HVAC system continues to work effectively make it a habit to regularly inspect its starting cycle to ensure that it works and shuts down properly.

Tighten electrical connections.

See to it that all connections are snug. Faulty connections are known to dramatically reduce the system’s efficiency overtime. Additionally, it can also jeopardize your safety.


Make sure that all moving parts are adequately lubricated to minimize resistance. Reducing resistance can help greatly reduce your monthly energy consumption.

Inspect the condensate drain.

This is located in your central air conditioner, furnace and heat pump. A clogged drain will not only affect the level of humidity inside your house, it can also cause damage to your property when left unattended.

Specific Cooling and Heating System Maintenance

Clean the coils.

Dirty evaporator and condenser coils reduce the system’s efficiency and increase electricity consumption. Cleaning the coils regularly will help prolong the system’s life span.

Inspect central air conditioner’s refrigerant level.

For maximum performance, make sure the refrigerant’s level is just the right as too much or too little can affect the system’s effectiveness and longevity.

Clean and adjust blower components.

Airflow issues are often considered one of the likely culprits when efficiency is compromised. In line with this, you can maintain proper airflow by ensuring the blowers are cleaned every once in a while.

Check heating elements.

Make sure no leaks are present. Furthermore, see to it that the gas or oil connections are cleaned as well. Doing so will not only help increase system efficiency but will almost always warrant a smooth and safe operation.

Undoubtedly, having a regular preventative maintenance routine in place will benefit you in more ways than you can possibly imagine. And your HVAC unit will thank you in the form of years of peak performance and trouble-free operation.

cropped-authority-specialist-small-1Rachel Heagney, Administration and Content Auditor at, and Guest Blogger for Controlled Release Technologies Inc., a research, development and manufacturing firm based in Shelby, North Carolina. CRT is an IFMA CSP, EnergyStar Partner and manufacturer of independently-certified Green products for HVAC maintenance. Since 1986, CRT has been creating leading edge HVAC maintenance products that have become industry standards, used in thousands of commercial buildings world-wide. CRT employees are members of BOMA, ASHRAE, ASHE and the American Chemical Society. (800) 766-9057.

2 comments on “Guest Blog: Essential HVAC Preventative Maintenance Checklist”

  1. Yes,taking care of HVAC units is very much essential now a days.If we didn’t take the care of our HVAC units then many such problems can occur due to which many issues can occur and which we have to face that meanwhile.


  2. True, keeping a HVAC unit in its best condition will not only run efficiently but this will ensure we get to save as much money as possible. In the long-run, a highly-efficient HVAC unit will bring a positive outcome to the homeowner. These are very helpful tips you have provided here. I’m sure that following each tip will keep our HVAC units in their peak performance and trouble-free operations.

    Absolute Cooling Service
    Refrigeration Maintenance and Repairs Adelaide


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