Possible Issues To Investigate When Your AC Unit Stops Working Abruptly

When a central air conditioning unit stops working abruptly, many homeowners wonder what could cause the problem. To keep your AC system in good condition, you need to investigate and address any potential issues preventing it from operating properly. 

Here are some possible issues you should consider when your AC unit suddenly stops working.

Overheated Motor

An overheated motor is a common issue that may cause your AC unit to stop working abruptly. The primary function of the motor is to drive the fan, which circulates cool air, and it is prone to overheating if it runs continuously for extended periods. 

Overheating can also occur due to a lack of maintenance, such as failure to regularly clean and lubricate the motor. These factors can lead to heat accumulation in the motor, causing it to overheat and eventually stop working.

To repair an overheated motor, ensure the power to the air conditioning unit is turned off and inspect the motor for signs of damage or wear. Consider the motor's age, as an older motor may need to be replaced entirely. Also, examine the fan blades for dust or debris that may impede their movement, which could contribute to motor overheating.

If the motor is not damaged and the fan blades are clean, the issue may be related to a lack of lubrication. To solve this, apply an appropriate amount of oil to the lubrication ports of the motor. After lubricating, turn the power back on and monitor the AC unit to see if it starts functioning normally. 

However, if the motor continues to overheat, it is advisable to seek professional help, as the problem could be more complex and require expert attention.

Faulty Control Board

The control board is the main component of any HVAC system, as it regulates all the operations of the air conditioning unit. If there is an issue with the control board or its wiring, your AC system could stop working abruptly. 

To diagnose a faulty control board, you will need to examine it closely for signs of damage, such as burnt-out wires or melted plastic. You should also check for any loose connections, as these could be the source of the problem. 

If you identify any visible signs of damage, it is best to replace the control board immediately. However, if the wiring looks intact and all the connections are secure, resetting the AC unit may help resolve any issues with a malfunctioning control board.

Contact a local company to learn more about emergency air conditioning repair.