DIY Solutions for Common Air Conditioning Issues in Greater Toronto

Common Air Conditioning Issues - DIY Fix

Introduction: Most Common Air Conditioning Issue in Greater Toronto

For Saving Home Service Inc. understands the frustration that comes with air conditioning issues, especially during the hot summer months in Greater Toronto. By identifying and addressing common air conditioning issues, you can often save time and money. Here’s a comprehensive guide to help you troubleshoot and fix these problems yourself.

Common Air Conditioning Issues - DIY Fix

1. AC Not Turning On

If your air conditioner won’t turn on, the problem might be as simple as a blown fuse or a tripped circuit breaker. Start by checking the breaker box and ensuring the thermostat is set correctly. Make sure the unit is plugged in and that the thermostat batteries are fresh.

Steps to Resolve:

  • Check the Circuit Breaker:
    Locate your home’s main electrical panel and look for any tripped breakers. Resetting the breaker might solve the problem.
  • Inspect the Thermostat:
    Ensure it is set to ‘cool’ and the temperature is lower than your current room temperature. Replace the batteries if necessary.
  • Examine the Power Supply:
    Confirm that the AC unit is properly plugged in and receiving power.

2. Insufficient Cooling

When your air conditioner isn’t cooling your home effectively, the issue could be due to blocked or dirty filters, low refrigerant levels, or obstructed condenser coils.

Steps to Resolve:

  • Replace Air Filters: Dirty filters can restrict airflow. Replace them regularly to ensure optimal performance.
  • Check Refrigerant Levels: Low refrigerant can impair cooling efficiency. While adding refrigerant requires a professional, identifying a refrigerant leak can help expedite service.
  • Clean Condenser Coils: Dirt and debris on the coils can reduce efficiency. Cleaning these coils can improve cooling performance.

3. AC Running Continuously

An air conditioner that runs non-stop might indicate an issue with the thermostat, air filters, or even the size of the unit relative to your home.

Steps to Resolve:

  • Thermostat Calibration:
    Make sure the thermostat is correctly calibrated and functioning.
  • Change Air Filters:
    Dirty filters can cause the AC to run longer to cool the home.
  • Evaluate Unit Size:
    An undersized unit will struggle to cool the space and run continuously. Consult a professional to ensure your unit is appropriately sized.

Common Air Conditioning Issues - DIY Fix

4. Strange Noises

Unusual noises from your air conditioner, such as rattling, buzzing, or grinding, can indicate a variety of issues, from loose components to motor problems.

Steps to Resolve:

  • Inspect for Loose Parts: Check for any loose screws or components and tighten them as needed.
  • Lubricate Moving Parts: Ensure that all moving parts are well-lubricated to prevent grinding noises.
  • Professional Inspection: Persistent noises might require professional assessment to avoid further damage.

5. Air Conditioner Water Leaks 

Water pooling around your air conditioner can stem from a blocked drain pipe, a full condensate pan, or a broken pump.

Steps to Resolve:

  • Clear the Drain Pipe: A clogged drain pipe can cause water to back up and leak. Use a wet/dry vacuum to clear the blockage.
  • Empty the Condensate Pan: Regularly check and empty the condensate pan.
  • Inspect the Pump: Ensure the pump that removes water is functioning correctly. Replace it if necessary.

Common Air Conditioning Issues - DIY Fix

6. Frozen Evaporator Coil

A frozen evaporator coil can prevent your AC from cooling properly and is usually due to restricted airflow or low refrigerant levels.

Steps to Resolve:

  • Thaw the Coils: Turn off the AC and let the coils thaw.
  • Check Air Filters and Vents: Ensure all filters and vents are clean and unobstructed to improve airflow.
  • Consult a Professional: If the problem persists, low refrigerant might be the cause and will require professional intervention.

7. Bad Odors

If your air conditioner emits unpleasant odors, it could be due to mold, mildew, or accumulated dirt in the system.

Steps to Resolve:

  • Clean the Filters and Coils: Regularly clean and replace filters and coils to prevent mold growth.
  • Check for Dead Animals: Inspect the ducts and unit for any small animals that might have gotten trapped.
  • Use an Air Purifier: An air purifier can help eliminate odors and improve air quality.


By understanding and addressing these common air conditioning issues, you can ensure your home remains comfortable and cool. However, for complex problems or regular maintenance, it’s best to contact a professional air conditioning contractor. For Saving Home Service Inc. is here to provide top-notch service for all your air conditioning needs in Greater Toronto. Contact us today to schedule a service and keep your home cool and comfortable.


Q1: How often should I replace my air filter?
A: It’s recommended to replace your air filter every 1-3 months, depending on usage and air quality.

Q2: Why is my air conditioner freezing up?
A: This could be due to restricted airflow or low refrigerant levels. Check your air filters and consult a professional if the problem persists.

Q3: Can I add refrigerant to my AC unit myself?
A: Adding refrigerant requires professional certification and is best handled by a licensed technician.

Q4: What size air conditioner do I need for my home?
A: The size depends on various factors, including the square footage of your home and insulation levels. A professional assessment is recommended.

Q5: How can I improve my AC’s efficiency?
A: Regular maintenance, such as replacing filters and cleaning coils, along with ensuring proper insulation and thermostat settings, can improve efficiency.

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