Frequently Asked Questions


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What is the best air conditioner for my home?

That is a great question.  Determining the correct air conditioner for your home depends on a number of factors including the size of your home, whether your home has existing ductwork, your energy usage, and the SEER rating of the unit.  Buying a unit that is too small or too large will keep you from operating efficiently and can keep your home warmer than you want it to be.  

For traditional air conditioner installations, the top five brands are: Trane, Amana, Carrier, Lennox, and Rheem.  Each brand has its own fans and its own strongpoints.  

Why is my AC leaking water?

There could be a few reasons that your AC is leaking.  

  • Clogged Condensate Drain Line.  The most obvious is a clogged condensate drain line.  When your air conditioner is working properly, it condenses water out of the air.  This water then drips into your condensate drain line, which removes it from your home.  If that line gets clogged, it can cause a backup into your house.  Many homes have overflow lines that extend outside, but if you can see water dripping from your AC, even if it is outside of your home, it indicates a problem.  
  • Dirty Air Filter. If your air filter is dirty, it can block the airflow to the evaporator coil. The coil freezes up.  When the coil melts, it begins to drip.  This increase in water may be too much for your drain pan and cause it to overflow. 
  • Low Refrigerant.  Low refrigerant results in lower pressure in the system, which can cause a frozen evaporator coil.  When the coil melts, it begins to drip.  This increase in water may be too much for your drain pan and cause it to overflow.
  • Damaged Drain Pan.  Designed to work with the normal condensate system, a drain pan catches the condensation.  If the drain pan gets damaged, water will leak. 
  • Broken Condensate Pump.  If your AC unit is in a basement, then it uses a pump to get the water outside. If that pump breaks, you get a leak. 

Why is my AC icing up outside?

While a number of things can cause your AC unit to ice up, there are three very common causes for a frozen AC unit. 

  • Cool Summer Nights.  A particular problem in a desert environment, cool nights can mess with your air conditioning system.  Air conditioners are designed to work with certain ambient outdoor temperatures.  You can use a programmable thermostat to keep your air conditioner from trying to operate when the outdoor temperature is below 60 degrees.  
  • Dirty Air Filters.  Dirty air filters prevent the air conditioner from getting enough air.  Without that air, humidity settles on the coils, where it freezes.  So, if your system is frozen, one of the first things to do is to check your air filters.  You can check to see if this is the problem by turning off your AC for long enough to thaw (1 to 3 hours), then turning on the fan for an hour.  Replace your filters during that time.  If your AC is back to normal after that process, dirty filters were the culprit. 
  • Low Refrigerant.  Low refrigerant levels cause a drop in pressure.  This allows the refrigerant to expand, which lets it become too cold, and the system freezes.  If you have a coolant leak, you need a professional to find and fix the source of the leak and recharge the system.  

Why is my AC blowing warm air and I have the thermostat set to cool?

There are a bunch of reasons that your AC is blowing warm air, even though the thermostat is set to cool.  Some are easy problems that have a quick DIY fix, like replacing dirty air filters.  Others can be major problems that require repair or even replacement.  Things to check include: 

  • Are the air filters dirty?
  • Is the evaporator coil frozen? 
  • Is your thermostat on the right setting? 
  • Is the outside unit getting electricity? 

If none of those seem to be the culprit, then you may have a refrigerant leak.  

Why are all of my rooms cool but one room is hotter than the rest of the house?

There are a number of reasons that one room could be warmer than the rest of the house.  Many of them have simple solutions.  Check and correct the following things to see if it fixes the temperature issue: 

  • Replace dirty air filters.
  • Make sure the vent is fully open in the room that is hotter.  Shut vents a little in rooms that are too cold. 
  • Shut your windows.
  • Inspect your air ducts for kinks, crushes, and leaks. 

If your air ducts seem fine and none of the above solutions helps fix your temperature issues, you may have a problem with your air balancing.  An HVAC company can help determine what issue is causing the balance problems and help correct that issue.  

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For a Free Estimate From an AC Expert in Peoria and Phoenix, Call Worlock AC & Heating Specialist

Worlock AC & Heating Specialist is a leading provider of HVAC services in the Pheonix, AZ areas, offering the highest standards of service when it comes to your HVAC system. Conventional AC, ductless mini-split, furnaces, or heat pumps, we service and install them all. We are dedicated to giving our Pheonix, AZ customers the assistance they deserve when it comes to AC installation, and when it comes time to say goodbye to your old system, we can assist you with the highest quality air conditioner replacement. For a free estimate for your HVAC needs, or to access our emergency AC repair services, give us a call or fill out the contact form, and you will have a certified HVAC contractor at your door in no time!

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