Why is my home air conditioner not cooling my home?

Nothing is worse than your central home air conditioner running but not actually cooling your home. If your AC unit is struggling to keep temperatures down, several issues could be causing the problem.

Common Reasons Your Home Air Conditioner Isn’t Cooling

1. Dirty Air Filter

A clogged filter blocks airflow, making it harder for your AC unit to cool your home efficiently.

✔️ Solution: Replace the filter every 1–3 months to keep your system working properly.

2. Low Refrigerant Levels (Freon Leak)

If your home air conditioning system is blowing warm air, low refrigerant levels could be the cause. Signs of a leak include:
❌ Ice on the evaporator coils
❌ A hissing noise near refrigerant lines

✔️ Solution: Call an HVAC Ontario expert at 1-888-705-7368 to inspect and recharge your system.

3. Malfunctioning Thermostat

An incorrect setting or failing sensor can prevent your central home air conditioner from cooling properly.

✔️ Solution: Set your thermostat to “cool” mode and replace the batteries.

4. Frozen Evaporator Coils

If coils freeze, your AC unit won’t be able to remove heat from your home properly. Causes include low refrigerant, restricted airflow, or a dirty coil.

✔️ Solution: Turn off the home air conditioning system to let the coils thaw and schedule an inspection with HVAC Ontario.

5. Aging AC Unit

If your central home air conditioner is over 10 years old, it may have lost efficiency, making it harder to keep your home cool.

✔️ Solution: If your system is outdated, consider upgrading to a high-efficiency AC from HVAC Ontario.

📞 Call HVAC Ontario at 1-888-705-7368 to schedule a repair or discuss AC replacement options!