The average air conditioner lasts 15 years, but that longevity only comes when it’s properly maintained. Getting your system serviced twice per year by a trained HVAC technician can minimize repairs and help you budget for replacement costs if necessary.
An AC system works from a cooling compressor that’s located outdoors, and the refrigerant-filled coil cools air that’s circulated through ducts on your home’s walls and floors. The cooled air is then pushed back outside by the fan.
Problems with your air conditioning can occur due to a wide range of reasons, so it’s important to stay on top of maintenance and repair needs. While there are some issues that require professional attention, many homeowners can troubleshoot or address common AC problems.
Often the most obvious reason your air conditioner isn’t working is that it isn’t receiving power. Check your home’s electrical panel to make sure the breaker for the air conditioner isn’t flipped to the off position, and that the circuit fuses are in good condition. If it isn’t getting power, or if the breaker switch on the outdoor unit doesn’t engage, it’s time to call an HVAC service professional for immediate air conditioner repair services.
Dirty air filters, clogged condenser coils, or low refrigerant levels can also prevent your system from running. Check the air filter and replace or clean it according to the manufacturer’s instructions. If you have a reusable filter, change it at least monthly. Clean the evaporator coils by disconnecting the unit and using a brush, mild detergent, and a wet/dry vacuum to clear out any debris.
Low refrigerant levels mean the air conditioner is unable to reach the temperature set by your thermostat. You can test the refrigerant level yourself by removing the access panel on the unit and placing a thermometer over the copper tubing. A professional technician can then replace the refrigerant and perform other repairs that may be needed.
Your air conditioner’s evaporator coils and copper refrigerant tubes can become clogged with dirt, and this causes your system to overheat. While experienced DIYers can usually handle cleaning the evaporator coils, you should leave it to an HVAC professional if the coils aren’t clean or the copper tubing has ice on it.
Air conditioning repairs can improve the quality of your home’s indoor air, reducing allergens like dust mites, mold spores, and pet dander. The air conditioner can also limit the amount of humidity in your home, which helps to inhibit the growth of harmful household bacteria.