What to Do When Your Air Conditioner Starts Blowing Hot Air
June 9, 2015
It's difficult to keep your Des Moines home comfortable in the summer without air conditioning. But what if your air conditioner is blowing hot air? Don't panic-simply follow these troubleshooting tips to get at the root of the problem.
Check the Settings
User error is the most common reason for an A/C to blow hot air, so start by checking the thermostat settings. Make sure it's set to "cool" and the fan is set to "auto." Check that the current ambient temperature is higher than the thermostat setting so the air conditioner kicks on.
Inspect the Outdoor Unit
First, make sure the unit is plugged in and receiving power. Without power to the outdoor condenser and compressor, the indoor air handler will run without actually cooling your home.
Then correct any airflow obstructions. This includes hosing down the unit to remove dirt, straightening bent fins and trimming surrounding foliage back. These are activities you should include in your regular A/C maintenance routine for the best possible cooling performance.
Change the Air Filter?
While a dirty air filter may not be the primary reason your air conditioner is blowing hot air, it can certainly contribute to decreased cooling performance. Make sure you change the filter once every 30 to 90 days to promote proper airflow and trap airborne contaminants for better indoor air quality.
After performing these troubleshooting tips, it's time to call in the pros if your A/C is still blowing hot air. A refrigerant leak or improper charge could be the reason behind the problem. Low refrigerant causes the evaporator coil to freeze, which impacts the air conditioner's cooling capacity. You might notice ice buildup on either the indoor or outdoor unit. If so, you certainly need a professional to take a look.
Don't choose just any company to sort out why your air conditioner is blowing hot air; rely only on a heating and cooling contractor with relevant knowledge and experience.
To work with such a company, contact Lozier Heating & Cooling. We proudly serve the Des Moines area.
Our goal is to help educate our customers in the greater Des Moines, Iowa area about energy and home comfort issues (specific to HVAC systems).
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