
Living in Gambier, OH, we’re no strangers to the shifting weather. One day it’s humid and sticky, the next it’s cool and breezy. This kind of unpredictable climate makes having a reliable air conditioning system less of a luxury and more of a necessity. Whether you’re cooling down your home after a long day or trying to keep your indoor air quality healthy, your HVAC system works quietly in the background—until something goes wrong.
But what if you could prevent AC breakdowns before they even start? With recent developments in the HVAC industry, particularly a nationwide shortage of R-454B refrigerant, now is the perfect time to talk about how being proactive with your HVAC care can save you from costly repairs and keep your system running smoothly, even during high-demand months.
Understanding the R-454B Refrigerant Shortage
Before diving into tips and best practices, it’s important to understand why there’s a buzz around refrigerants like R-454B.
What Is R-454B?
R-454B is a newer, low-global warming potential (GWP) refrigerant that’s been introduced to replace older refrigerants like R-410A. It offers similar performance but with a significantly lower environmental impact. Due to government regulations and industry shifts toward more eco-friendly solutions, R-454B is becoming the go-to option in many new AC systems.
Why the Shortage?
As manufacturers phase out older refrigerants to meet environmental standards, demand for R-454B has skyrocketed. However, supply chain delays and manufacturing limitations have made it difficult for suppliers to keep up. This shortage means longer wait times and higher costs for refrigerant refills and repairs involving R-454B-based systems.
According to industry reports, refrigerant prices have surged by over 300% since 2021, with availability tightening further due to EPA phase-down mandates that took effect in January 2025. This makes it all the more critical to keep your current HVAC system in optimal shape to avoid needing a costly recharge or replacement.
Why Proactive HVAC Maintenance Matters More Than Ever
When it comes to avoiding AC emergencies, prevention is far more effective—and affordable—than reaction. Regular HVAC maintenance not only extends the life of your system but also reduces the likelihood of needing service during peak seasons when technicians and parts are harder to come by.
Reduced Risk of Emergency Breakdowns
Most HVAC issues don’t appear out of the blue. They build up over time—dust accumulation, minor component wear, refrigerant leaks. Regular inspections and tune-ups can catch these small problems early before they become major system failures.
Lower Energy Bills
An HVAC system that’s operating efficiently uses less energy to cool your home. In fact, the U.S. Department of Energy estimates that regular maintenance can improve AC efficiency by up to 15%, helping homeowners save on monthly utility bills.
Better Indoor Air Quality
Clogged filters, dirty coils, and mold in your system can contribute to poor indoor air quality, which can aggravate allergies or respiratory conditions. A well-maintained system keeps air cleaner and healthier for your household.
Proactive Tips to Avoid AC Emergencies
Now that we understand the challenges presented by the R-454B shortage and the benefits of staying ahead of AC issues, let’s look at some practical steps homeowners in Gambier can take.
1. Schedule Regular HVAC Tune-Ups
The most important step you can take is to set up biannual HVAC inspections—ideally in the spring and fall. A professional technician will clean internal components, check for refrigerant leaks, test electrical connections, and ensure your system is running at peak efficiency.
Even during cooler months, your AC system is still aging and susceptible to damage. Routine checks help identify issues early and allow time for repairs before you need your system most.
2. Replace Your Air Filters Frequently
This may seem simple, but it’s one of the most overlooked maintenance tasks. Dirty filters restrict airflow, force your system to work harder, and can lead to overheating or frozen coils.
As a rule of thumb:
-
Replace standard 1-inch filters every 30–60 days.
-
For homes with pets or allergies, consider replacing them more often.
Pro tip: Mark a reminder on your calendar or set up automatic filter deliveries to stay consistent.
3. Keep Outdoor Units Clear
If you have a split system, your outdoor condenser unit needs plenty of breathing room. Leaves, grass clippings, dirt, and other debris can clog the coils and reduce efficiency.
Clear a minimum of 2 feet around the unit and hose down the fins gently to remove buildup. During seasonal yard maintenance, take a quick look to ensure no branches or vegetation are encroaching on the unit.
4. Seal and Insulate Ductwork
Up to 30% of the air moving through duct systems can be lost due to leaks, holes, or poorly connected ducts, according to ENERGY STAR. Sealing and insulating your ductwork helps keep cool air inside and reduces the burden on your HVAC system.
This also improves overall comfort throughout your home, especially in rooms that always seem too warm or too cold.
5. Upgrade Your Thermostat
A programmable or smart thermostat gives you more control over your home’s temperature and energy use. By setting your AC to run less when you’re not home or while you’re sleeping, you reduce strain on the system.
Some smart thermostats even monitor your system’s performance and notify you of issues like poor airflow or temperature inconsistencies.
6. Stay Informed About Your Refrigerant Type
If your system is relatively new, it may already be using R-454B or be compatible with it. If it’s older, it may run on R-410A or even an older refrigerant like R-22, which has been phased out entirely.
Knowing what type of refrigerant your system uses will help you prepare for potential supply issues and plan ahead for upgrades or service needs. Your HVAC technician can provide this information during a regular service appointment.
When to Consider an AC Replacement
If your air conditioning unit is over 10–15 years old and beginning to show signs of inefficiency—such as frequent repairs, inconsistent temperatures, or high energy bills—it might be time to consider a replacement.
R-454B and New Systems
As of 2025, new systems are increasingly using R-454B to comply with environmental regulations. Investing in an upgrade now can put you ahead of the curve and save you from dealing with refrigerant transition issues down the road.
New systems are also much more energy-efficient and environmentally friendly, often qualifying for tax incentives or rebates.
What to Expect from a Professional Maintenance Visit
When you schedule a visit with a certified HVAC technician, you can expect the following services:
-
Checking refrigerant levels and detecting leaks
-
Inspecting and cleaning evaporator and condenser coils
-
Testing thermostat calibration
-
Examining electrical connections and components
-
Lubricating moving parts
-
Checking and clearing condensate drains
-
Inspecting ductwork for leaks and airflow issues
A thorough maintenance routine like this ensures every part of your system is operating safely and efficiently.
For AC Services in Gambier, OH, Contact Cosby Heating and Cooling, Today
It’s easy to overlook your air conditioner—until it stops working on the hottest day of the year. With the ongoing refrigerant shortages and supply chain delays, waiting until a breakdown occurs can mean long wait times for repairs and limited parts availability.
Being proactive now saves you from discomfort and unexpected expenses later. Just like you’d winterize your plumbing before freezing temps, now is the time to summer-proof your cooling system—especially in a climate like Gambier’s.
At Cosby Heating and Cooling, we understand how important it is to stay comfortable and protected in your own home. That’s why our certified technicians provide thorough maintenance services, expert repairs, and up-to-date guidance on refrigerant changes like the R-454B transition.
Whether you’re looking to tune up your current system or explore options for a new, energy-efficient upgrade, we’re here to help. Our team is experienced, responsive, and committed to your home’s long-term comfort and safety.