This simple guide helps you identify common AC problems, try a few quick checks, and decide whether it’s time to book professional AC repair or consider a new air conditioner installation.
1. Quick Checks Before You Call a Professional
Before scheduling a service call, run through these easy checks. They can save time, money, and unnecessary repairs.
| DIY Check | What to Do | Why It Matters |
|---|---|---|
| Thermostat | Make sure it’s set to Cool and below room temperature. Replace batteries if needed. | Prevents unnecessary service calls. |
| Air Filter | Remove and inspect the filter. Replace it if dirty. | Dirty filters restrict airflow and can freeze coils. |
| Breaker Panel | Check that the AC breaker is ON and hasn’t tripped. | Restores power instantly if tripped. |
| Outdoor Unit | Clear debris and maintain about 60 cm of space around the condenser. | Improves airflow and system efficiency. |
| Supply Vents | Open all vents and remove obstructions like rugs or furniture. | Helps balance cooling throughout the home. |
Pro Tip: After completing these steps, run the system for 10 minutes.
If warm air is still blowing, continue to the next section.
2. Warning Signs You Shouldn’t Ignore
Strange Odors
Burning smell: Could indicate an electrical issue.
Musty smell: May signal mold in the ductwork or evaporator coil.
Unusual Noises
Grinding: Often caused by worn bearings.
Hissing: May indicate a refrigerant leak and requires professional diagnosis.
Short Cycling
If your AC turns on and off every few minutes, it could be due to thermostat issues, refrigerant problems, or an oversized system.
Rising Energy Bills
If your cooling costs keep increasing without higher usage, inefficient equipment or duct leaks may be the cause.
When you notice any of these issues, it’s time to contact Atlantis HVAC Systems for professional HVAC service in Oakville and surrounding areas.
AC Repair vs. Replacement: Which Is Right for You?
| Factor | Choose Repair When… | Choose Replacement When… |
|---|---|---|
| Age | Unit is under 10 years old | Unit is 12–15 years or older |
| Repair Cost | Less than 30% of a new system | More than 40% of a new system |
| Efficiency (SEER) | Bills are stable and comfort is consistent | Energy bills are high or SEER rating is very low |
| Breakdowns | Repairs are rare | Frequent service calls each season |
Rule of Thumb:
Repair Cost × System Age
If the result is higher than the cost of a new unit, replacement is usually the smarter choice.
Why Replacing Your AC Can Be the Better Option
In some cases, replacement offers better long-term value:
Home additions may require increased cooling capacity.
You may be upgrading alongside a furnace installation process for improved whole-home efficiency.
New AC systems offer smart thermostats, quieter operation, and lower energy bills.
If replacement is on the table, spring or early fall is often the best time. Scheduling is easier, and HVAC companies may offer better availability or seasonal promotions.
FAQs
Q1: How fast can I get help during a heat wave?
A: Reputable HVAC companies like Atlantis HVAC Systems offer priority service plans. Signing up before peak season improves your chances of same-day service.
Q2: Does AC size really matter?
A: Yes. Oversized units short-cycle and waste energy, while undersized units struggle to cool. A professional load calculation ensures the correct size.
Q3: Will I need new ductwork?
A: Not always, but leaky ducts can waste up to 30% of cooled air. A proper inspection will determine whether sealing or upgrades are needed.
Q4: Can regular maintenance prevent breakdowns?
A:Annual AC tune-ups as part of regular HVAC maintenance help maintain efficiency and protect warranties.
Why Homeowners Trust Atlantis HVAC Systems
Local expertise: Decades of experience serving Oakville and nearby communities
Full-service HVAC: Emergency AC repair, new installations, and furnace services
Upfront pricing: Clear quotes with no surprises
Certified technicians: Licensed, insured, and trained on modern high-efficiency systems
Ready for Cool Comfort?
Atlantis HVAC Systems keeps homes across Oakville and surrounding areas comfortable, efficient, and worry-free.
📞 GTA East: (416) 891-3444
📞 GTA West: (905) 845-4009
💻 Online: Schedule your service or request a free quote today
Beat the heat before it starts schedule your AC repair consultation with Atlantis HVAC today.