Common air conditioner electrical problems

What are the most common electrical problems with air conditioners, and how can you deal with them?


An air conditioner is an appliance powered by electricity, but the electrical problems that are likely to occur can vary. As an owner of such an appliance, it is important to recognize the various problems as soon as they occur. To help you, we have prepared an overview of the most common electrical problems with air conditioners.



Common electrical problems in an air conditioning system


1. Wiring problems

There are many wires in your air conditioner, each with a specific function. Even the failure of just one wire can lead to more serious damage and overload the system.


An example of such a problem is if a particular air conditioner wire becomes loose over time and affects the overall operation of the system. A damaged wire can also be the cause of a short circuit. This is due to the faulty wire's inability to handle a larger volume of electricity.


2. Faulty air conditioner capacitor

The main function of the condenser is to import, hold and conduct electricity, thanks to which the entire system is powered. If there is a fault in the capacitor, its function to hold electricity starts to diminish, and this can be noticed as frequent shutting down of the unit, hard starting and inefficiency. In this case, don't try to repair your air conditioner on your own but call a technician to find the exact cause of the problem and eliminate it. The condenser may need to be replaced.


3. Broken circuit breakers

If your air conditioner shuts off frequently, it could be a sign of a tripped circuit breaker. Usually the breaker trips due to high voltage in the system. Another cause could be a short circuit or a problem in the breaker panel.


4. Problems with fuses

Proper installation of the air conditioner is essential because it determines how efficient the unit will be. If the installation is not done properly, it can lead to electrical problems. It is also important that the fuses are cleaned regularly, as dirt can obstruct the flow of electricity and you could face serious damage later on.


5. Loose connections

When carrying out maintenance or during air conditioning repairs you can ask the technician to tighten and check for corrosion electrical connections. This way, you will know that there are no loose connections in the system, and it will work efficiently.


Avoiding electrical problems with your air conditioner

With regular checkups and maintenance, you can ensure your air conditioner is getting the care it needs to keep running at its best. Since the electrical parts in your air conditioner require expert knowledge, leaving the matter in the hands of HVAC experts is highly recommended.


Signs of an electrical problem

Electric bill suddenly increases

You may think you're likely to have one of the above problems if your electricity bill suddenly increases, so keep a regular eye on your electricity consumption.


The air conditioner does not turn off

If your air conditioner is constantly running and overloading, it may not be an electrical fault at all. Dust and dirt build-up in the filter can cause your air conditioner to run constantly. This can also cause the coils to freeze.


On the other hand, if the system reaches the set temperature but continues to run constantly, the air conditioner's electrical problem may be related to the thermostat. The thermostat's sensor may have come loose or be giving a short.


AC electrical problems after a storm or power outage

Typically during severe thunderstorms, there is a chance that water will enter the unit or the power supply will be interrupted. Therefore, always check your appliance after a heavy storm or heavy rainfall and be sure to unplug it beforehand.


Some parts of the air conditioner are exposed (such as the coils and drain lines that remove moisture from the system). This is not good for the electrical components. If an old and poorly maintained system has loose or uncovered wires, it can cause a short circuit.


Check the circuit breaker if power has been restored, but your air conditioner still won't turn on.


What can you do if the power is disconnected?

- Disconnect the air conditioner from the remote control

- Locate the air conditioner circuit breaker in the electrical panel

- Do not switch on the air conditioner from the control for about half an hour. Usually that's how long it takes to reset the internal circuit breaker.

- If you can't turn on the air conditioner after that, get help from a professional.


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