The Complete Guide to Troubleshooting an AC Circuit Board

The AC circuit board is the heart of an electrical system. A circuit board, also known as a printed circuit board, serves as a base for sockets and wiring. Along with other electronic gadgets, air conditioners contain a circuit board. A circuit board's primary function is to connect all of a device's parts in a small area. Additionally, it guarantees that the components are properly insulated. It is the part that regulates voltage, current, and frequency. If it becomes faulty, the entire system can be rendered useless. Control Board parts are vital to the safety of a home or office. You can find replacement parts for your Control Board at PartsHnC with a few clicks of your mouse. 

AC circuit boards are complicated and can be difficult to troubleshoot on your own. Parts of an air conditioner eventually wear out naturally. However, you should think about replacing them in order to prevent future harm to yourself. But how much does AC repair cost? What is the price of a new circuit board? Learn more about circuit boards and their replacement prices by reading on. This guide will provide you with all of the information you need to figure out what’s wrong with your circuit board and how to fix it.

Can a Circuit Board be Replaced?

If you've spotted a broken circuit board, it might be changed or fixed, so don't be alarmed. A circuit board can be repaired, however this can only be done in a dedicated workshop, not on-site. That being stated, it is always preferable to purchase a new circuit board as opposed to having the old one repaired since. A circuit board needs to be repaired, which takes time and requires careful scrutiny. The burden of having to replace the circuit board later can be avoided by simply replacing it entirely.

1. Only after the repair is accurate can it be deemed finished. The chances of error are great since the contact points on the circuit board are so small.
2. There is also the chance that other contact sites may have weakened so much so that they have a high probability of failing shortly.
3. Older circuit boards contain small and weak contact points, which cause the most failures, so it is recommended to replace them. A new circuit board may be purchased and installed right away, but repairing one requires a complex process that takes time. When it comes to your Control Board, you can't just get it from anywhere. PartsHnC online store is your source for the best Control Board parts to restore or repair your machine. All of our parts are available 24/7 and from well-known manufactures that give you the latest and most reliable quality.

Air Conditioner Circuit Board Troubleshooting

Despite its tiny size, the circuit board is essential to an electrical device's operation. These PCBs can be sophisticated or simple, depending on how difficult the task was. It requires a step-by-step method to find a flaw. The majority of things will seem simple enough, but they actually require a lot of technical knowledge. Here is our troubleshooting guide for air conditioner circuit boards.

1. You'll start by making sure that everything in the air conditioner is functioning properly. Change the air filters, clean the ducts, check that the contactor is working properly, and make sure there is enough refrigerant before moving on to the problem. Naturally, depending on the issue, you will look in different places.
2. Power is required to operate a circuit board. Make sure the circuit board is receiving power continuously to start. Sometimes the power is derived from line voltage, and at other times the circuit board obtains its power supply from the control transformer. In either scenario, you must ensure that the board's input voltage is appropriate.
3. The next step is to evaluate the results. Before sending an output signal or voltage to a linked component, many AC circuit boards rely on a safety check. Typically, this entails checking each safety circuit. Only after each test is successful does the board permit an output signal. The board prevents a signal from being output to the linked component if the limit and pressure switches are still open. You can disable the safety circuits on various circuit boards. When you do so and the AC unit resumes its regular operation, you will know that the safety circuits are the source of the issue.

If the problem is actually the safety circuits, do not presume it is due of a defective switch. Try to identify the primary factor that opened the switch. Finding the solution requires extensive technical work and a thorough grasp of how the AC functions. It is preferable to call your local HVAC firm to request a professional because the majority of us lack this information. They are adept at identifying these flaws and will do so faster.

4. You need to seek other causes if the problem is not with the safety switches. First, turn off the power to your AC. Now carefully remove the circuit board from the bracket or mounting pins and inspect the back. There will be indications on the rear if the circuit board has burned in any places. It's time to get a new circuit board if you discover the burn marks. Before detaching anything from the circuit board, snap a picture. This will simplify the reinstallation process. The image will demonstrate how to connect the terminals and serve as a guide.
5. Relays are present on an air conditioner circuit board. These appear to be little black cubes. The condenser fan motor or the blower motor receives power from a relay. The AC won't function if the fan doesn't turn on. So, using the handle of a screwdriver, gently tap the tiny black cubes. The relay connections within the black cubes frequently stick. They can be made to open and close as needed with the aid of tapping. If tapping doesn't free them, the circuit board needs to be changed. Once more, snap a picture to help you remember what goes where.

How do I test my AC control board?

This is a question that many homeowners ask themselves when their AC stops working.

First, you should check the thermostat to make sure it is not broken. If the thermostat is working, then make sure your fuse box or electrical panel isn't blown. If your fuse box or electrical panel are not blown, then you may have a faulty AC control board.

To test your AC control board, try plugging in an extension cord and turning on the power switch on the unit. If it turns back on, then you know that it's just a faulty unit and not anything more complicated like a blown fuse box or electrical panel. If the unit doesn't turn on, then you'll need to check and replace your AC control board.

How much does it cost to replace an AC circuit board?

A new AC circuit board might cost anywhere from $125 to $625. However, an AC circuit board's component costs range from $100 to $150. For $50 to $250, an AC circuit board can be purchased online. Long-term, replacing a control board parts for an air conditioner is preferable to having it repeatedly repaired. 

PartsHnC is a trusted automotive parts supplier with over 20 years of experience. They have a wide variety of products that are all guaranteed to be in stock and shipped on time. If you need any replacement parts and accessories for your HVAC systems today, PartsHnC has you covered.