When the air conditioner stops cooling down the home properly and you begin to investigate the problem, you may notice ice on your air conditioner. Ice can develop on or near the evaporator coil or the condenser. Ice is a sign of a problem with your air conditioner’s health. Air Supply Heating & Air Conditioning will expose some of the common culprits as to why an air conditioner will ice up and what you need to do to correct the problem.
Dirty Air Filter
When you discover ice on your air conditioner, you need to ask yourself “when was the last time I changed my air filters?” A dirty or clogged air filter impedes the needed air flow to help your air conditioner function properly and healthily. When their isn’t proper air flow the air conditioner can over-cool and begin to develop ice. When you see the ice you should turn off the air conditioner until the ice has melted. Then check your air filters and see if they need to be changed. A dirty filter has a major impact on the performance and health of an air conditioner. Here in southern Nevada, we have a lot of dust and wind, which means air filters need to be changed out often. It is normal for air filters to need replacing once a month to every three months.
Low AC Refrigerant
Ice on an air conditioner can also point to low refrigerant levels. Low refrigerant is always due to a leak. Refrigerant doesn’t run out as it is always in a state of recycling itself. Low refrigerant means the air conditioner has developed a leak. Low refrigerant levels can cause ice to build up and when this happens, you will need the help of a professional HVAC service. Only an HVAC service can refill refrigerant. At the same time they can quickly repair the site of the leak. When the refrigerant is low and ice is present, contact an HVAC service.
AC Drain Line Problems
When an air conditioner runs multiple cycles throughout the day, condensation will begin to accumulate. Condensation is normal and you may even see some slight leaking during the day. The condensation is designed to fall into the condensate pan and in through a drainage system. Sometimes this drainage system can become blocked or the drainage pipe has gotten disconnected. As a result the condensation isn’t flowing away from the air conditioner. When the air conditioner runs a cycle, the blocked water can freeze up. The drainage system needs to be restored. Either the clogged needs to be removed or the piping needs to be reconnected.
Bad AC Fan Motor
Ice on an air conditioner can be due to a failing fan. When a fan isn’t running properly the cold air isn’t being flushed through the air ducts. The cold air remains trapped inside the air conditioner or the air handler which at this point is getting very cold. When the fan fails to circulate air, it can be due to a dying motor, a broken fan belt, or the fan is very dirty and needs to be cleaned. If the fan needs cleaning, a new belt, or the motor needs replacing, this is a job for a professional HVAC services.