What is an air conditioner? How to replace the correct air conditioner capacitor?

The air conditioner capacitor is an important part to activate the compressor to operate as well as contribute to the cooling effect of the air conditioner (air conditioner). Let’s learn more about this component together with Tnhelearning.edu.vn, along with how to change the air conditioner capacitor to the most technical!

What is an air conditioner?

The air conditioner capacitor is the starting part of the compressor (block) , it is also called the jack capacitor and is designed to connect directly to the block through the start and common pins of the conditioning block, located on the inside of the air conditioner. air conditioner heater .

On the market, you can see many types of capacitors, in which the capacitor used for the air conditioner is usually a non-polar oil capacitor, such as:

• Capacitor 2 pins : Support active block machine.
• 3-pin capacitor : Support block machine and fan inside the hot unit to work.

Working principle of condenser

When the condenser operates, the refrigerant in the heater will be converted to vapor and then run through the capillary (also called a cable). After that, this refrigerant will be gradually converted from vapor to liquid form thanks to the pressure difference, pushing the refrigerant inside the outdoor unit and cooling the entire indoor unit.

After that, they will be sucked in by a fan and gradually blow cold air outside the air conditioner to help cool the room.

The fan in the heater will have the effect of sucking hot air from inside the heater to push the heat to the outside, so that the hot unit is cooled and supports the compressor (block machine) to work better.

The function of the air conditioner condenser

Because the compressor uses a single-phase asynchronous electric motor with a shock-loaded rotor , a capacitor is required to generate a command magnetic field for this motor to work. Therefore, the function of the air conditioner condenser is to support the start of the compressor , contributing to the generation of cold air radiating from the indoor unit inside the room.

Causes of broken air conditioner condenser

Operation over capacity

When you use the air conditioner regularly to serve cooling or heating needs, the temperature inside the air conditioner will tend to increase, affecting the components inside the indoor and outdoor units, especially. when you use the air conditioner on hot days.

In general, the habit of using an overpowered air conditioner is usually:

• Adjust the air conditioner to run at low temperature (below 20 degrees Celsius) for a long, continuous period.
• Use the air conditioner 24/7.
• Install the air conditioner in an area with high temperatures without protective equipment, such as direct sunlight.

Unstable power supply

Unstable power supply is also one of the common causes of capacitor failure, thereby making the device unstable and affecting the cooling efficiency of the device.

In addition, using an unstable power source for a long time will significantly reduce the life of the device.

The temperature is too hot

Ambient temperature is too hot or placing the heater in an inappropriate position is also the cause of the capacitor being damaged as well as making the compressor operate at low capacity.

Signs to identify damaged air conditioner capacitors

When you look at it with your eyes, it will be difficult for you to recognize a damaged air conditioner capacitor, because usually these components are sealed inside the heater. Therefore, you can identify a damaged capacitor based on some common signs such as:

• It doesn’t feel cold when turning on the air conditioner like before.
• The compressor inside the heater makes a “hème” sound or does not work.
• Capacitor burnt.
• Air conditioner is leaking.

Instructions on how to replace the correct air conditioner capacitor

When detecting a damaged air conditioner capacitor, you can replace the capacitor as follows:

How to connect 2 leg air conditioner capacitors

Step 1 : You need to determine the common foot, running foot and starter foot on the machine block (compressor).

Step 2 : With the common pin of the block, you plug in 1 pin of the hot-block bridge.

Step 3 : With the running pin and the base of the block, you plug each wire into 1 leg of the condenser.

Step 4 : Take the remaining 1 power cord at the bridge of the hot unit and plug it in with the running pins of the block located in the capacitor.

How to connect 3-pin air conditioner capacitor

Step 1 : Understand the symbol on the 3-pin harmonic capacitor, then you perform the following way of connection:

• Heat: plug in the header of the block.
• C: plug in the block’s running pin and the fan’s running pin and then plug it in with a power source from the bridge.
• Fan : plug in the fan header.

Step 2 : At the common foot of the fan and the common foot of the block machine, you will plug in the remaining power at the bridge to say the hot and cold side.

Some solutions to limit the damage of air conditioner capacitors

To minimize damage to the air conditioner condenser during the process of using the air conditioner for cooling or heating, you can apply some of the following solutions:

• Should clean the air conditioner periodically, about 6 – 9 months/time (in the case of using the air conditioner 2-3 days/week), or 3-4 months/time (in the case of using the air conditioner 4-6 days). /week) to promptly detect damaged components and parts of the air conditioner.
• It is recommended to choose an air conditioner capacity about 30% larger than the current use demand, this will avoid the device operating at capacity, maintaining at 50 – 70% of the maximum operating capacity.
• Choose a suitable installation location for the indoor and outdoor units of the air conditioner, both to ensure effective cooling and to avoid having an internal condenser that is not damaged due to overwork or high ambient temperature.
• Regularly pay attention to the operation of the air conditioner to recognize the abnormal signs of the device, then check and fix the problem quickly to avoid making the device easily damaged, causing costly repair costs. repair or replace with new one.

So, you already know what an air conditioner capacitor is, along with how to replace the air conditioner capacitor so that it is technically correct when there is a need to check and replace a new capacitor for the air conditioner. If you still have any doubts, please leave a comment below so that Tnhelearning.edu.vn can help you soon.