When your air conditioning unit stops working, it might be a simple fix. But it can also be a major issue. While some problems can be avoided with regular cleaning, it’s important you have a technician look at the issues you can’t solve yourself. There are a variety of reasons that can set your air con off, so let’s have a look at seven common air conditioner problems and how to fix them.

1. Air Conditioner Is Not Turning On

You must check your thermostat batteries when your AC is not working or turning on. Replace the batteries if they are dead. If the batteries are in working condition, check the thermostat settings to determine whether the cooling mode is on with your desired temperature settings. If your thermostat is on, but your AC is still not turning on, check the circuit breaker. If the circuit breaker is tripped, your AC won’t turn on. Reset the circuit breaker by flipping the switch off and then on.

2. Air Conditioner Not Blowing Cold Air

Your AC will not blow cold air if a dirty air filter blocks the airflow of your unit. A dirty air filter can further freeze up the condenser unit and limit the cooling power of your AC. Changing your air filter every month will help your AC unit blow cold air.

3. Frozen Evaporator Coil

The evaporator coil freezes when your air conditioner does not receive sufficient air needed for operation. A frozen evaporator coil can make your AC freeze up and stop working. Blocked vents and ducts, dirty filters, or a faulty fan can cause insufficient airflow in the system. A clean air filter is important to maximize airflow and indoor air quality.

4. Electric Control Failure

When you frequently turn on and off your air conditioner, the fan controls and compressor can wear out. The condenser fan motor, the compressor, and the blower motor make an electrical connection to start the unit. A connection problem can prevent the motor and compressor from turning on. You should check the electrical connections to determine the issue.

5. Drainage Problem

The drain pipeline can also become clogged with dust, algae, and dirt. If water does not drain properly, mold, fungus, and mildew can develop. Also, gasses and bad odor can filter into your home. To prevent this, make sure your drain line is regularly maintained, cleaned, and inspected. Air conditioners which are not mounted level may not drain properly.

6. Sensor Problem

The air conditioner contains a thermostat sensor, located near the evaporator coil. The thermostat measures the air temperature in the evaporating coil and adjusts the cooling based on the condition of the room. If the sensor is forced out of position, the air conditioner can randomly turn on and off or cycle constantly. The sensor should be placed near the evaporator coil without touching each other. Adjust the sensor by bending the wire that holds it in position.