The right sized air conditioning unit should keep your home comfortable, even on the hottest and longest summer days in San Jose, CA. But one of the most common summer problems is an A/C unit that is always running or constantly cycling on and off. Not only does this create cooling problems inside your home, but increases energy costs and puts unnecessary stress on your HVAC system.
How Can I Tell if my Air Conditioning is Over-Running?
Aside from your system constantly kicking on, you might also notice:
- Extra high energy costs
- Uneven cooling in your house
- Long run times with little change in temperature
Common Causes of This Problem
Here are a few reasons why your A/C unit isn’t shutting off properly:
- Clogged Air Filter
When the air filter for your system is full of dirt, it restricts the air flow. This prevents your air conditioner from functioning as it should. You need enough air flow moving over the coils to cool the air. And if you just changed the air filters, you might have purchased one that is too restrictive for your system. Consult with your owner’s manual or an HVAC professional to choose a filter with the right MERV value. - Broken Thermostat
If your thermostat isn’t working, the system will not know when to shut off, even once it has reached the desired temperature. So double check your thermostat. Use another method to see if the temperature in your home is at or below the set point. Also if you notice the air coming from the supply vents is warm, it could mean your coils have frozen. Turn off your HVAC system and contact an air conditioning professional. - Dirty or Frozen Evaporator Coil
Did you forget to service your air conditioner in the spring? If so, the coil could be covered in dust and dirt. This impedes the cooling process and makes your system inefficient. - Blocked Condenser
Like a dirty coil on the inside, your condenser coil on the outside may be dirty. In fact, they will probably be even worse because they are outside. You want to make sure leaves, debris, dirt, and other obstructions get cleaned away. You also want a professional cleaning once a year before you turn your A/C on for the year. - Low Refrigerant
If you have a leak in the coils, they will not have enough refrigerant to cool. The unit will continue to run because your home never cools to the set temperature. - Leaky Ducts
Maybe your air conditioning unit is working fine, but the cold air just isn’t getting where it needs to go. You could be losing air through leaks in the ducts, and will need to call a professional to pinpoint the problem and seal them up. - Fan or Blower Motor Issues
Last but not least, the motor or fan might not produce enough cool air. That or the fan could be running at too low a speed.
If you want a professional air conditioning repair in San Jose, CA to come and check your HVAC system in San Jose, CA call (669) 219-8957. The experts at Pelle Heating & Air Conditioning will give you fair pricing on outstanding service. We are located at 1045 N 10th St San Jose, CA 95112.
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