3 Signs Your Air Conditioner Needs Repairs
When your air conditioner stops working properly during a hot Ohio summer, it’s not just uncomfortable—it can quickly become unbearable. Recognizing early warning signs of AC problems can help you avoid costly repairs, unexpected breakdowns, and excessive energy bills. Here are three common indicators that your air conditioner may be in need of professional repairs.
1. Unusual Noises Coming From the Unit
Your AC system should operate with a consistent hum, not clanking, banging, or squealing. If you start to hear odd noises, something may be wrong.
- Squealing or screeching might point to worn-out fan belts or issues with the motor bearings.
- Rattling or buzzing could signal loose parts or debris inside the system.
- Grinding sounds may indicate motor damage or compressor failure.
Still not sure what the noise means? Read our guide to AC noise troubleshooting. Any unfamiliar noise is a good reason to shut the system off and call a trusted HVAC technician. Ignoring these sounds can turn a simple repair into a costly system failure.
2. Inconsistent or Warm Airflow
If you’re noticing hot spots throughout your home, or the air coming from your vents isn’t as cool as it used to be, that’s a red flag.
Common culprits include:
- Dirty air filters
- Frozen evaporator coils
- Low refrigerant levels – low refrigerant could also indicate a leak–here’s how to spot refrigerant-related problems.
- Failing compressors
If the air is warm, it may not just be low refrigerant–learn more about common reasons your air conditioner blows warm air. Sometimes a quick filter replacement will restore performance, but if problems continue, your system may need a deeper diagnostic and repair.
3. Unpleasant Odors From the Vents
An air conditioner shouldn’t smell. If you detect musty, burnt, or chemical-like odors, the issue could stem from:
- Mold or mildew inside the ductwork
- Overheating electrical components
- A clogged condensate drain
These problems can lead to poor indoor air quality or even health concerns. If your AC smells bad, turn it off and schedule a service visit right away. For a closer look at what different AC smells mean, check out this breakdown.
When to Call a Professional
While minor issues like a dirty filter or a tripped breaker can be DIY fixes, many air conditioning problems require a certified HVAC technician. Refrigerant handling, electrical components, and sealed systems should only be repaired by licensed professionals.
If your system is older than 10 years, breaks down often, or causes a spike in your electric bills, it may be time to consider whether it’s more cost-effective to replace the unit entirely. Choose Sears for air conditioning repairs today!
Frequently Asked Questions
How often should I have my AC serviced?
Once a year, ideally in the spring, to ensure it runs efficiently through the summer.
Can I run my AC if it’s making noise?
If it’s making unusual sounds, it’s best to turn it off and call a technician to prevent further damage.
Why is my AC blowing warm air?
Common causes include low refrigerant, dirty coils, or a malfunctioning compressor.
Should I replace my air filter myself?
Yes. Check it monthly and replace it every 1–3 months, depending on usage and air quality.
Is a refrigerant leak dangerous?
Yes. Refrigerant leaks can damage the system and reduce air quality. Only a professional should handle refrigerant repairs.
