The Effects of Long-Term Inactivity on Your AC: What You Need to Know

If your AC has been sitting idle for months—especially during the cooler seasons—it may not be ready to spring back into action without issues. Long-term inactivity can lead to performance problems, costly repairs, and even system failure.

At Central Heating and Air Conditioning, we help homeowners in Decatur get their systems back in shape before the heat arrives. If your AC has been unused, it’s critical to schedule a professional inspection before switching it back on.

Call 404-261-2280 to book AC maintenance in Decatur today.

What Happens When an AC Sits Unused? 

Dust and Debris Accumulation 

Idle AC systems collect dust, dirt, and debris inside filters, vents, and coils. This buildup restricts airflow and forces the system to work harder—leading to reduced efficiency and potential overheating. 

Mold Growth 

When humidity levels rise and the system isn’t running, mold can develop in your ductwork or on coils. Once your AC turns on, mold spores can spread throughout your home, posing serious health risks. 

Pest Infestation 

Rodents, insects, and other pests often take shelter in unused AC systems, chewing through wires, nesting in ductwork, and causing significant damage. 

Refrigerant Leaks 

If an AC system sits unused, seals can dry out and crack, causing refrigerant leaks. Refrigerant loss reduces cooling power and can pose health risks. Never attempt to handle refrigerant yourself—this is a job for professionals.

Component Degradation 

Mechanical parts like compressors, fans, and motors can degrade or seize up without use. Lubricants may dry out, and components may corrode, leading to system failure once restarted. 

Electrical Issues 

Over time, electrical connections can loosen or corrode. Attempting to run your system without checking for these issues could lead to tripped breakers—or worse. 

Before You Restart Your AC, Call a Professional 

You might be tempted to do a quick check yourself, but restarting an AC that hasn’t run in months without an inspection can lead to damage or inefficiency. 

Here’s what a professional AC tune-up in Decatur from Central includes:

• Full inspection of indoor and outdoor units 

• Filter replacement (we use high-efficiency pleated filters) 

• Cleaning of coils, drain lines, and blower components 

• Check for refrigerant leaks and electrical safety 

• Testing thermostat accuracy and system performance 

• Identifying signs of wear or pest damage 

• Ensuring your AC is safe, clean, and ready for the season 

Don’t Risk Costly Damage—Schedule Preventative Service Now 

Your AC system is a long-term investment. If it’s been inactive, the safest step you can take is to schedule AC maintenance in Decatur before running it again. Regular inspections help: 

Prevent unexpected breakdowns
Improve cooling efficiency
Extend the lifespan of your system
Keep your energy bills under control 

AC Not Working? Call Central for Fast, Reliable Help 

If your air conditioner isn’t cooling, is making strange noises, or simply won’t turn on—don’t troubleshoot alone. Let the experts at Central Heating and Air Conditioning diagnose and fix the issue.

Call us today at 404-261-2280 to schedule air conditioning repair in Decatur or a pre-season maintenance visit.

We’ve proudly served Georgia families since 1947 with Better Service Through Knowledge.