HVAC calibration matters a lot more than many homeowners realize, making it an essential part of being a homeowner. Calibration isn’t to be confused with repair or maintenance; it’s simply the recalibration of components to ensure they work accurately and effectively. Not having a calibrated HVAC system affects many aspects of your home, including comfort, efficiency, and indoor air quality. We are going to dive in and explore the signs that your HVAC might need calibration, so you are best prepared and can take the necessary course of action if you find yourself experiencing them.
What is HVAC Calibration?
HVAC calibration is not repair or replacement; it’s simply the calibration of components to ensure they work properly and accurately. There is a list of tasks a professional HVAC technician will perform during an HVAC calibration. Here’s what you can expect:
- Calibrating the thermostat for accuracy
- Balancing the airflow and duct performance
- Temperature split testing
- Refrigerant charge verification
- Electrical and control settings check
- Burner and combustion calibration
- System pressure checks
This list is an idea of what you can expect a professional HVAC tech to do when they come to calibrate your HVAC.
Why Does HVAC Fall Out of Calibration?
Many homeowners are not familiar with how important HVAC calibration is or how much it can affect the home. There are many reasons that your HVAC may fall out of calibration over time, so let’s take a look at the different reasons why your HVAC system may fall out of calibration:
- Normal wear and tear of the components
- Dirty filters and restricted airflow
- Duct leaks
- Thermostat drift and calibration
- Refrigerant loss
- Improper installation
These are just a few of the most common reasons that your HVAC may fall out of calibration, but there are other potential reasons this can happen. Regardless of the reason, it’s important to get your HVAC system calibrated sooner rather than later to avoid more serious issues.
Signs Your HVAC Needs a Calibration
How do you know if your HVAC needs a calibration? There are many signs that you may need an HVAC calibration, so as a homeowner, it’s crucial to recognize them so you can get it fixed sooner rather than later, avoiding worsening issues.
HVAC Running Too Often
One sign that your HVAC needs calibration is that your system runs constantly or cycles too often. Short cycling and long run times can indicate that the HVAC unit is working too hard to cool your home. This can indicate thermostat issues, airflow problems, and incorrect system settings. Your HVAC should not run constantly, and the cycles should be longer between on and off times.
Uneven Temperatures in Your Home
If you have hot and cold spots or rooms that seem colder or warmer, this can indicate uneven cooling in your home. If you find yourself frequently adjusting the thermostat but never feeling satisfied with the temperature, this could indicate that your home isn’t being properly cooled. The thermostat can’t keep up with indoor temperatures.
High Energy Bills
High, unexplained energy bills can indicate that energy is being used much more. It ultimately indicates that your system is working harder than it needs to, which can cause it to use more energy and result in a high energy bill. Note that this doesn’t mean the unit is broken; it means it is working harder than it should, putting strain on the unit.
Wea Airflow From Vents
Weak airflow from your vents can indicate duct pressure issues. This can be caused by dirty blower components and airflow restrictions that prevent airflow from coming out of the vents properly, resulting in your home being improperly cooled.
Inaccurate Thermostat Reading
If your thermostat reading is inaccurate, then this could indicate that the thermostat and HVAC need to be recalibrated. Additionally, this could also indicate sensor placement issues or smart thermostat misconfigurations.
System Struggles During High or Low Temperatures
Your system might seem to be working, but the issue arises when it’s difficult to keep the home cool in high heat or warm in low temperatures. Calibration and performance testing will indicate if there is an issue with your system during peak heat and cool months. Your system should work harder in extreme weather, but it should still be able to heat and cool your home properly. If there is difficulty with this, it is a sign that something is wrong and your unit needs to be calibrated.
Strange Noises or Humidity
Rattling, banging, or whistling are all signs that something is wrong with your HVAC. Your system should be fairly quiet, and these sounds indicate a larger issud. Additionally, musty smells or humidity in your home can indicate that your HVAC isn’t working properly, as one of its jobs is to remove humidity from your home.
Frequent Repairs
If you find that you are dealing with frequent maintenance and repairs on your HVAC, this could indicate underlying issues that need to be addressed. Your HVAC should not need to be repaired frequently, and calibration helps prevent potential repeat issues while also allowing a professional to inspect your unit.
What Happens During a Professional Calibration?
What happens during a calibration appointment may vary by company, but many follow a step-by-step guide that serves as the baseline for all calibration appointments. If you are looking into booking a professional HVAC calibration appointment, here is a look at the steps that will be taken during the appointment:
- System inspection, where they will take a look at the system as a whole
- Airflow and duct testing
- Thermostat verification
- Refrigerant evaluation
- Combustion testing
- Final performance verification
During the appointment, homeowners should ask any questions they deem necessary, and they should expect the professional to identify any potential issues with the HVAC while calibrating the unit.
Benefits of a Professional HVAC Calibration
The benefits of professional HVAC calibration are extensive, spanning many areas. Here is a list of benefits that a professional HVAC calibration can bring:
- More consistent comfort throughout the home since your HVAC system is running effectively
- Lower monthly energy costs due to the unit not running in overdrive and taking up more energy
- Reduced wear and tear on the components
- Better humidity control in the home
- Improved air quality throughout the home
- Fewer breakdowns and repairs needed, with an added longer system life
How Often Should HVAC Calibration Be Done?
HVAC calibration should be done every season or at least every year for optimal performance. If you have an older system, live in a high-usage household, have duct issues, or have air quality concerns, you should have your unit calibrated more frequently. If you haven’t had your HVAC system calibrated at all, it’s important to get it calibrated sooner rather than later to avoid potential issues. If you are a homeowner looking to have your HVAC system calibrated, contact us at All Year Cooling to schedule an appointment and get your system running efficiently and effectively this season.