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Here are a few more answers to questions we are commonly asked regarding air conditioning units.

Q: Where should my AC units be located so that I get the highest level of efficiency and cooling?

A: If possible, your vents should be located near a rooms windows. When prioritizing where to place vents, put them near north or west facing windows before putting them near windows that face east or south. This assumes, of course, that these vents will also be supplying heat.

Q: What problems could be caused by closing one or two return vents?

A: This could cause your air conditioner to lose some cooling capacity, since the temperature of the air where the vents are closed would not change significantly.

Q: Why is my air conditioner unable to reach the thermostat set temperature?

A: One reason could be a dirty air filter that might be blocking your units flow of air. You should replace an air filter, on average, about once per month. If the compressor and fan are both coming on, you could have a low charge. If only the fan is coming on, then you could have a compressor that needs to be replaced.

Q: How long does it normally take for the air conditioner to lower the temperature in my home one degree?

A: There are several factors to take into consideration, such as the amount of humidity in your home, the number of people in your home at a particular time, whether it is unusually hot outside, etc. If the temperature does not go down by one degree after 30 minutes, that is normally the sign of a problem. It could be that you have a leak somewhere in your system that needs to be fixed, and refrigerant may need to be added.

Q: What are some of the places where an air conditioner system leak might be?

This is a pretty broad question. If you have a refrigerant leak, it is probably in one of the two coils. It could also be located in the line set, wherever copper lines are joined with couplings. It could also be the case that the line has been punctured in some way, maybe with a nail during a home improvement project or construction of the home itself. Its best to call a professional who can come out to your home, perform a detailed, thorough inspection, find the source of the leak, and fix the leak.