5 Common Air Conditioning Issues and How to Fix Them


🧊 Introduction

When the summer heat hits Quebec, your air conditioner becomes your best friend β€” until it stops working. Here are 5 common air conditioning problems and simple ways to troubleshoot them before calling a technician.


❓ 1. Why is my AC blowing warm air?

Possible causes:

  • Dirty or clogged air filter
  • Thermostat set to β€œfan” instead of β€œcool”
  • Low refrigerant level (potential leak)
  • Faulty compressor

What you can do:

  • Check and replace the air filter
  • Confirm your thermostat is in “cool” mode
  • If it still blows warm, call a technician to check refrigerant and system pressure

❓ 2. Why is my AC unit leaking water inside the house?

Common reasons:

  • Clogged condensate drain
  • Frozen evaporator coil
  • Improper drain pan installation

Solution:

  • Turn off the system to prevent further damage
  • Contact a professional to clean the drain and inspect for coil or refrigerant issues

❓ 3. My heat pump or AC runs constantly β€” is that normal?

If it’s extremely hot outside, constant operation might be normal. However, other causes include:

  • System too small for your space
  • Thermostat malfunction
  • Leaky ducts or poor insulation

Recommendation:
Have your system evaluated to ensure it’s properly sized and your home is well-sealed.


❓ 4. Why is my AC making strange noises?

Rattling, buzzing, or clicking could indicate:

  • Loose parts
  • Motor or fan issues
  • Debris inside the outdoor unit

What to do:

  • Turn off the unit
  • Have it inspected and serviced before it causes further damage

❓ 5. My AC cycles on and off too frequently β€” what’s wrong?

This might be due to:

  • Oversized unit
  • Dirty condenser or evaporator coils
  • Malfunctioning thermostat

Action plan:

  • Clean filters and coils
  • Let a technician recalibrate or relocate the thermostat if needed

🧠 Pro Tip from Applewood Technicians:

β€œMany AC problems begin with airflow β€” change your filters regularly and schedule seasonal tune-ups to stay ahead of issues.”


πŸ“ž Need AC service in Montreal or South Shore?
Climatisation Applewood Quebec Inc. is here to help.

Leave an inquiry

Your email address will not be published. Required fields are marked *

en_USEnglish