After the Repair is Tested
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작성자 Lynn 날짜24-04-28 05:20 조회5회 댓글0건본문
It's strange to think that back in the mid-1960s, home air conditioning was such a luxury that only 10 percent of American homes were equipped with it. And you may be tempted to do the same thing, if your AC won't turn on! While a tripped circuit breaker could disrupt your unit, it's rare. Typically, there are only a handful of reasons why your AC won't turn on, from power supply issues to a refrigerant leak. So if you're experiencing issues with your air conditioner unit, you can pinpoint the problem with the help of this article. Better yet, by exploring these five causes of AC system mishaps, you can prevent future issues from occurring.S. Nine out of 10 American homes are now equipped with some type of air conditioning, and residential air conditioners account for an estimated 18 percent of U.S. In 2013, Americans spent $7.2 billion installing or replacing central air conditioning units in their homes, according to federal census data.
Nowadays, Americans are so accustomed to feeling chilled out that it's probably harder for them to cope with the heat when their AC system stops working properly. News reports suggest that air-conditioning repair services are continually busy fixing or replacing equipment for overheated homeowners. Air conditioning units have two parts: one inside your home and one outside of it. A fan in the inside unit blows air through the chilled evaporator coil, cooling your house, via air ducts. Meanwhile outside, the compressor, condenser coil and another fan vent the hot air coming off the refrigerant. The expansion valve regulates the amount of refrigerant moving between the evaporator and condenser coils. If the motor on your fan is not working, the outdoor unit can't get rid of the heat. Replacing some of these parts is very expensive (particularly the compressor) and may not be much cheaper than replacing the whole unit.
Having a trained HVAC technician give your unit a yearly checkup should prevent premature mechanical failure. Francis Dietz, vice president for public affairs for the Air Conditioning, Heating and Refrigeration Institute, says in an email. Nevertheless, these units "require attention for them to perform properly". Which brings us to the second problem on our list. Dietz says failure to replace the air filter on schedule is one of the most common reasons that an AC unit will stop working. The evaporator coil is a network of tubes, filled with a coolant called refrigerant, that remove moisture and heat from the air. Consumer Reports recommends that filters on central air conditioners be changed once a month, especially if you have the air conditioning running constantly, or have pets who shed fur. To make it easier, Dietz says, many of today's advanced thermostats automatically notify homeowners of the need to replace a filter.
Inside your warm house, cold liquid refrigerant evaporates on the evaporator coil, turning into gas. As you can imagine, if the refrigerant is low, the air conditioner won't cool very well. There are two reasons why you would have a low level of refrigerant. One is that when the system was installed, not enough was added. But more likely, the level is low because your system has developed a leak. Bring in a trained HVAC technician to find the leak and fix it. After the repair is tested, the technician can charge the system with the correct amount of refrigerant and your HVAC system should be set. Nearly all current AC systems use halogenated chlorofluorocarbons (HCFCs), aka R-22 or freon, as a refrigerant but these are being phased out for environmental reasons. Careless outdoor landscaping and/or neglect of lawn care may be another reason that your house is so hot.
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