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What Happens During an HVAC Tune-Up? Guide for PA Businesses

What Happens During an HVAC Tune-Up? Guide for PA Businesses

Pennsylvania business owners know how difficult it is to keep your HVAC system running at its best. From humidity in summers to extreme temperature drops in winters, your system hardly gets a break. A tune-up is essential to keep your system running smoothly and stay stronger against the brutal climate's strain. If you are curious about knowing what happens during a professional HVAC tune-up, this blog is for you.

It will walk you through every step during the professional tune-up. The guide is specifically designed keeping the commercial HVAC systems in Pennsylvania in mind.

What to Expect During an HVAC Tune-Up

The following are some essential steps included in the process of a professional HVAC tune-up. In your case, there could be some additional steps depending on the current condition of your system and how much attention it needs.

1. Detailed Inspection

The technicians start with a detailed inspection of your system. Whether it is an air conditioner, heat pump, or commercial boiler, every component is checked, tested, and verified. Technicians make sure that every component is in good condition, both in its physical appearance and operational mechanism. The following are some advanced tools and equipment technicians can use for inspection.

  • Digital Manometer
  • Digital Psychrometer
  • Anemometer
  • Manifold Gauges
  • Electronic Leak Detectors
  • Thermal Imaging Camera
  • Combustion Analyzer

2. Thorough Cleaning

Once the inspection is complete, the technicians start cleaning your equipment. Starting with the outdoor unit and its core components and then coming towards the indoor unit, everything is cleaned completely. All the coils are cleaned, obstructions are removed, and any blockages are eliminated. If there are signs of mold growth, technicians use EPA-approved fungicidal chemicals to eliminate those uninvited guests and their colonies. During this step, the surrounding shrubs and tree branches around your outdoor unit are also cleaned, so there is optimized airflow.

3. Air Filter Replacement

Technicians check your air filters for any signs of dust buildup or obstruction. They also ask you what the last time you cleaned your filters was. If there has been more than two to three months since the last filter replacement or there are visible signs of blockages, they replace the filters. The quality of the filters and their compatibility with your HVAC system are also checked. If you are using filters that are not good for your HVAC system, the technicians will recommend the best filters that can provide you with better efficiency

If you have washable and reusable filters, the technicians may wash them completely and make them ready for air filtration for the next couple of months.

4. Filling Reagents

The technician checks the levels of reagents in your system. These could be refrigerant, lubricating chemicals, or some component-specific liquids that are essential for normal operation. If a specific reagent is found to be depleted, it is refilled and brought back to normal levels. Specifically, technicians check the level of refrigerant, inspect for leaks, and refill it if lower than normal levels are found.

Lubrication of moving parts is also a vital step here. All the moving parts are lubricated completely so they move with efficiency without producing any unusual sounds.

5. Fixing HVAC Problems

Technicians take the inspection report and start fixing problems found during the inspection. All components with reduced efficiency or some problems are opened, checked, repaired, verified, and then fitted again. If some accessories or components are not found in a repairable state, they are replaced depending on what the solution is. The complete inspection list is addressed, and each component is brought back to its efficient working state.

6. Fixing Electrical and Plumbing Connections

HVAC tune-ups are not just for HVAC units themselves. The technicians also take a close look at your electrical and plumbing connections. For example, if there are leaks in your HVAC ducts, they detect and seal them effectively. Similarly, the issues in electrical parts such as tripped circuit breakers and loose connections are fixed correctly.

7. Final Testing

Technicians recalibrate the thermostat and perform a quick test. They turn your HVAC system on and let it run for a few minutes. Performance is checked during this period, warning signs are checked, and settings of the thermostat and control panel are verified. If something is found not optimized, the unit is opened again, and correction methods are applied. If everything is good and technicians are satisfied with the performance and efficiency, the system is handed over to you.

At this point, Lehigh HVAC technicians do what others miss. Our technicians guide clients completely on how to use their HVAC system the best way and what mistakes to avoid to prevent breakdowns or efficiency problems. Lehigh HVAC also provides 24/7 post-service support to its clients, so they are never left in discomfort alone.

Contact Lehigh HVAC today at 484-961-7044 to schedule a professional HVAC tune-up service.

Frequently Asked Questions:

Most commercial HVAC systems should receive professional tune-ups twice per year, typically in the spring before cooling season and in the fall before heating season. Regular maintenance helps ensure reliable performance and reduces the risk of unexpected breakdowns.

A commercial HVAC tune-up typically includes a full system inspection, cleaning of key components, air filter replacement, electrical and mechanical checks, thermostat calibration, lubrication of moving parts, and identification of potential issues before they become major problems.

Most commercial HVAC tune-ups take between one and three hours to complete. Larger or more complex systems may require additional time, and extensive inspections can sometimes take most of a business day.

Yes. Regular HVAC tune-ups improve system efficiency by ensuring components operate correctly, airflow remains unrestricted, and energy-wasting issues are corrected. This often results in lower monthly utility costs.

Commercial HVAC systems are generally larger, more complex, and operate for longer hours than residential systems. They often require specialized maintenance procedures, more detailed inspections, and compliance with additional operational and safety requirements.