6 Reasons Your Air Conditioning Isn’t Blowing Cold Air

An air conditioner that doesn’t blow cold air is a problem that crops up at the most inconvenient times. But there may not be reason to panic. There are several reasons why you might be getting warm air out of the returns, and they aren’t all expensive repairs. Here are a few reasons why you might have warm air coming from your air conditioning in Los Gatos, CA:  

1. Wrong Thermostat Settings

Sometimes the answer is as simple as checking the settings on the thermostat. Perhaps someone accidentally bumped them or you forgot to switch the temperature back after changing it for a time. So before you call for an HVAC professional, check to make sure your thermostat is switched to cool, the fan is set to auto, and the temperature is at the proper setting. If all of that seems fine, then you can move on to other problems.   

2. BlownCircuit Breaker 

Your air conditioner connects to two circuit breakers. There is one for the outside unit and one for the inside unit. And breakers trip all the time. If the breaker for the outside unit trips the inside will still run, but there is no way for the air to stay cool. Reset the breaker and see if that resolves the problem. If it trips the breaker again there is a problem and it is time to call for air conditioning repair.   

3. Clogged Air Filter

After the thermostat, the next thing to check would be the air filters. Excessive dirt and debris restrict the airflow. This not only makes the air feel warmer, but it makes your system work harder and wears it out faster. If you check the filter and it is dirty, try replacing it to see if it corrects the problem. And be sure you check it every month during peak usage.   

4. Dirty Evaporator Coils

Over time the evaporator coils can collect dust, dirt, and debris. This can reduce efficiency and impact the overall performance of your cooling system. Ultimately the air conditioner will overheat and shut down. So make sure you schedule regular maintenance and have the technician clean the coils.   

5. Low Refrigerant 

This is the chemical in the HVAC system that removes heat from indoor air, keeping the indoors nice and cool in the summer. But if there is not enough refrigerant in the system it can cause a number of problems. Your home will probably feel warm or the system will continue to short cycle. However, if you do notice a refrigerant leak be sure your call an HVAC technician. Refrigerant is dangerous to handle.   

6. Duct Leaks

The air ducts are how cool air reaches different rooms in the home. But over time the seals on ductwork might wear out or the insulation can deteriorate, causing leaks. So excess air escapes before it can reach the other areas of your home. You might need to schedule a duct inspection, especially if your system is older.   

If your air conditioner isn’t blowing cold air there are a couple of simple checks you can perform yourself before calling for help with your air conditioning in Los Gatos, CA. But if you can’t resolve the problem don’t hesitate to call Pelle Heating & Air Conditioning at (408) 978-7060. Or visit us at 1045 N 10th St., San Jose, CA 95112.