Did you know that 91% of American households use air conditioning? In the high summer temperatures, the demand for air conditioning may increase by 8%. However, homeowners may experience some air conditioner malfunctions after staying for long periods without using their AC units.
Having a dysfunctional AC unit on a hot day can be frustrating. Before you give your HVAC contractor a call, it would be best to know what's going on with your air conditioner. Here are seven common air conditioner problems your HVAC contractor can fix.
Refrigerant is a cooling fluid in charge of cooling the air in your air conditioning system. When the refrigerant in your AC starts leaking, temperatures in your home may start varying due to reduced coolant levels. These decreased levels result in low pressure in your AC unit, which may result in frozen evaporator coils, and eventual moisture leakage.
If you detect a refrigerant leak, patch up the source of the leak before topping up the refrigerant to fix the problem.
The compressor in an AC circulates the refrigerant under high pressure to regulate the heat in the air conditioning system. Refrigerant leaks, dirty evaporators, and contaminants in refrigerant oil can cause compressor malfunctions. When refrigerant levels are low, a compressor may overheat. On the other hand, if an AC has excess refrigerant, the refrigerant may enter the compressor during operation, causing a malfunction.
If your air conditioner stops cooling, it may have a damaged compressor.
A capacitor is a cylindrical item that stores energy that powers an AC unit. Capacitors send jolts of power to maintain the motor's operation. Your air conditioner's compressor, blower motor, and outside fan work with the capacitor to keep the AC running. You may have a faulty capacitor if you hear your AC humming, but its fan does not spin.
If your air conditioner starts dispensing warm or hot air, it may have dirty or clogged air filters. If you don't observe any blockage in your air filter, check the thermostat settings to ensure you've set them correctly. You may also check the refrigerant levels on your AC unit.
If you have set your thermostat correctly, have your HVAC contractor check your AC and fix any other problems that may interfere with its cooling functions.
AC units involve a fair amount of condensate, and when the condensate drain has a clog, you may observe some moisture leakage from your AC unit. The condensate drain may also have broken down and may need a replacement.
A dirty air filter may also cause the evaporator coils to freeze over, resulting in drainage problems. Replacing dirty air filters is an effective way to solve air conditioner leaks.
A noisy AC unit may be annoying, but it will help you identify problems in your AC before they become worse. Rattling sounds in your AC may indicate some loose parts. On the other hand, clicking noises may indicate an obstruction in the fans, while internal leaks may produce a hissing or bubbling sound.
AC units have a thermostat sensor hidden behind the control unit panel that reads the temperature of the air getting into the evaporative coil. If the thermostat sensor malfunctions, your air conditioner may constantly cycle or operate erratically. An air conditioner technician can fix this problem by repositioning the thermostat sensor.
Regular AC maintenance can help detect AC problems before they cause an air conditioning system failure. If you have observed any of the above issues in your air conditioning unit, an HVAC technician can fix them to restore your air conditioner's efficiency. Contact us today for all your residential air conditioning system maintenance and repairs.
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248-299-8126