When the summer heat hits Winnipeg, your air conditioner becomes one of the most important systems in your home. But how do you know when it’s time to give it some attention?
While a well-maintained AC unit can keep your home comfortable and energy-efficient, even the best systems can show signs of wear over time. Knowing what to look for can help you catch problems early, avoid costly repairs, and ensure your home stays cool when it matters most.
Here are 8 key signs that your AC may need servicing.
1. It’s Blowing Warm Air
If your AC is running but blowing warm or room-temperature air, that’s a clear sign something isn’t right. It could be due to:
- Low refrigerant levels
- A clogged air filter
- A malfunctioning compressor
- Thermostat issues
Warm air is one of the most common reasons homeowners call for service, and it usually indicates that your AC is working harder than it should—wasting energy in the process.
2. Weak or Inconsistent Airflow
If you notice weak airflow from your vents, your system might be struggling to push cool air through your ducts. This could be caused by:
- Blocked or dirty air filters
- Ductwork problems
- A failing blower motor
- Frozen evaporator coils
Poor airflow can lead to uneven cooling throughout your home and may indicate a more serious issue developing inside the system.
3. Strange Noises From the Unit
A well-functioning AC should be relatively quiet, aside from a gentle hum during operation. Grinding, banging, rattling, or squealing sounds are not normal and may point to mechanical problems such as:
- Loose or damaged parts
- Motor or fan issues
- Debris caught in the unit
- A failing compressor
Unusual noises are often an early warning sign, so it’s important to schedule service before they turn into more costly repairs.
4. Unpleasant Smells When the AC Is On
If your AC emits musty, burning, or foul odours, there may be bacteria, mould, or electrical problems within the system. Musty smells usually indicate moisture buildup and potential mould growth in the ducts or evaporator coil, while burning smells could mean:
- Overheating components
- Wiring issues
- Dust burning off internal parts
In either case, a professional cleaning and inspection is strongly recommended.
5. Frequent Cycling or Constant Running
Your AC should cycle on and off throughout the day to maintain the set temperature. If you notice that it’s turning on and off more frequently than usual—or running constantly without cooling the space efficiently—it could be due to:
- Incorrect thermostat settings
- A dirty air filter
- Low refrigerant
- Electrical or control board issues
Frequent cycling not only reduces efficiency but also puts added strain on the system.
6. Water Leaks or Moisture Around the Unit
Some condensation is normal, but visible leaks or water pooling around your unit are not. These could be caused by:
- A clogged or damaged condensate drain line
- Frozen evaporator coils
- Refrigerant leaks
Excess moisture can damage your walls, floors, or ceiling and promote mould. It’s important to address these issues promptly.
7. Higher-Than-Normal Energy Bills
If your energy bills are rising but your usage hasn’t changed, your AC might be running inefficiently. Common causes include:
- Dirty coils or filters
- Failing components
- Low refrigerant
- An aging system
Staying on top of your AC maintenance helps catch these problems early and keeps your operating costs in check.
8. Your Home Isn’t Cooling Evenly
Are some rooms roasting while others feel like a walk-in freezer? Uneven cooling often points to:
- Blocked or leaky ductwork
- Poor airflow
- Dirty filters
- Thermostat calibration issues
A professional inspection can uncover and resolve airflow problems to bring back balanced comfort.
When to Call for AC Service
Replacing your air filter and keeping your unit clean are good habits, but most AC issues need professional expertise. If you notice any of the warning signs above, don’t wait. Scheduling air conditioning services at the first sign of trouble can:
- Restore performance
- Improve indoor air quality
- Prevent breakdowns
- Extend your system’s life
- Keep utility bills under control
Final Thoughts: Stay Ahead of AC Problems
Even if your AC seems to be running fine, it’s smart to have it checked at least once a year. Regular tune-ups and, when needed, expert air conditioning installation ensure your system stays efficient and reliable.
For trusted, professional service in Winnipeg—from seasonal maintenance to urgent AC repair—you can count on Lynn’s Plumbing Heating & Cooling to keep your home comfortable all summer long.
