Signs That You Have Air Conditioner Electrical Wiring Problems

Published On: June 3, 20220 Comments on Signs That You Have Air Conditioner Electrical Wiring ProblemsTags: , Last Updated: January 31, 20245.2 min read

Are you wondering if you have air conditioner electrical wiring problems? Air conditioners are built with many mechanical parts, including a complex system of wires and electrical circuits. Therefore, it is possible that sooner or later, the system’s electrical wiring will get damaged.

Wires in air conditioner

Suppose there is an issue with the wiring or an electrical problem that develops in the air conditioner system. In that case, you should immediately get assistance from a professional technician like those at this website:

What are the signs of air conditioners electrical wiring problems?

An air conditioner has many parts made of electrical wires, such as relays, contactors, capacitors, and the motor. You can understand there is a problem with them from your air conditioner’s weird and unusual behavior.

Here are some of the most common problems you are likely to encounter:

1. Breakers

All the air conditioners have breakers as a safety measure to prevent fire hazards or malfunctions; and every air conditioner uses a lot of electricity, and the breakers are necessary to stop the electrical flow if it goes over the limit.

If a circuit breaker trips due to high voltage, the air conditioner will stop working and shut down. If it is happening a lot, it can be caused by the motor in the blower fan that is overworking the circuit.

Many other things can cause the breaker to trip; for example, the circuit breaker panel could have a problem, but only a trained person should check the panel and attempt a repair action. The breaker could be loose or even undersized. If the problem is a loose breaker, it is only necessary to make it tight. However, if the breaker is faulty or undersized, it must be replaced.

2. Problems with the wires

Many problems can develop from the wiring. For example, exposed wires in the vicinity of the AC unit are a potential security problem. Therefore, all exposed wires must be immediately secured before any accident happens. Accidents caused by exposed wires are fire and even electrocution. In addition, if water gets in contact with the cables, the entire AC unit can get damaged. Therefore, if you detect that a wire is exposed, it is very possible that there are more of them with a similar problem. An inspection should take place to locate all of the faulty wires and fix them. If you are not experienced in electrical work, it is dangerous to try to remedy the situation. However, it is better than a trained technician taking on the job. Sooner or later, wires will become the effect of corrosion, fraying, disconnection, and other problems. Those issues can impede electricity from reaching the system and thus operating correctly.

3. Problem with the capacitor

The air conditioner system is composed of a compressor motor and one or two fan motors. Since the air conditioners are working with alternate current, there are also two capacitors. The purpose of one of the capacitors is to start the motors, while the other is responsible for keeping electricity flowing. If the air conditioner is turning off after trying to get it going, the problem could be in the motor or the capacitor. Capacitors hold enough electrical charges to perform their starting functions, and if one is malfunctioning, it can cause the breakdown of the entire system. Capacitor issues need to be resolved by qualified technicians since they can be both complicated to fix and dangerous at the same time. Still, most commonly, the capacitor is getting replaced.

Testing air conditioner connections

4. Problems with the compressor

The compressor is one of the essential parts of the air conditioner. It ensures that the refrigerant extracts heat from the air, and if it doesn’t work, you can experience delays in starting the air conditioner and noises coming from the system. The motor is connected to the compressor and makes it function, but the motor could get damaged too, and if that happens, it should be replaced.

5. Air conditioning system has problems turning on or off

If your air conditioner is shutting off a few minutes after you pushed the “on” button, and if it keeps turning on and off in repetition, it is clear that there are electrical issues to resolve. In this case, you have to look at the capacitors to see if they are working correctly or not. Turning on and off at intervals is another clue that there is a problem with the wires and the electrical system. Any of the wires could have a problem, whether it is corrosion or a wire getting frayed, detached from the system, and damaged, resulting in a malfunctioning system. Air conditioners are starting up and turning off when necessary based on the thermostat settings and the temperature they have to reach. But you can figure out that there is a problem if the turning on and off happens several times within a few minutes and is not related to the temperature.

6. Loose connections

Loose connections are another cause of the air conditioning turning on and off constantly since the electricity can’t flow properly through the system. You can assume that this is the problem you are experiencing if the issue is resolved by applying pressure on some AC unit parts. Loose connections can happen with rusty wires or otherwise damaged. Regular maintenance can prevent loose wires and keep your system working correctly.

Why does the AC keep tripping the breaker?

If the AC keeps tripping the breaker, it is because of dirty filters, dirty condenser coils, a bad capacitor, and an old and weak compressor. The dirt can block the air conditioner or make it hard for the system to reach the desired results. If it is not resolved quickly, the system can collapse.


When your air conditioner is experiencing electrical wiring problems, you can figure it out from various signs. In addition, wires are subject to wear and tear like the other air conditioning system parts. In general, electrical problems should be handled by trained professionals. If you are not sure about the problem your air conditioner is experiencing, don’t hesitate to contact a professional for assistance.

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