characteristics and causes of home AC pcb damage

Knowing the damage to the AC Control PCB

AC control PCB is a tool to regulate the overall work of the AC unit as well as other PCBs on electronic machines. if it is likened to an ac control PCB, it is like the human brain which instructs the limbs to move.

Inside this control PCB component consists of various kinds of electronic devices, namely thermistors, sensors, capacitors, ICs, transformers, fuses, switches, relays and many other tools. To be honest, if this is the problem with the control PCB, I also don't understand.

Usually when I find damage to the AC PCB, I immediately pass it back to a friend who is an expert in electronics service *count it for good luck with friends* or I just replace the PCB with a new one, namely a universal PCB made in China because on the side the price is cheap, this PCB is very universal so it can be used for all kinds of AC brands that exist today.

How to find out the damage to the AC PCB and how to fix it

If the PCB is damaged, usually at this time the AC will be marked in the form of error codes on the display, these codes can be seen in the AC unit manual.

usually on split ac you will see a sign on the display, the lights in the indoor flashing blink, this indicates that one of the components on the PCB has an error. The fix (50% works) do a reset by unplugging the power or the power plug and wait a while try turning it on again, if the indicator light on the display is still flashing it also means there is damage to one of the PCB components

1. Check the indoor AC fuse PCB / fuse is still good.

how to fix it by connecting the ends of the fuse with a multi tester on a 1xohm scale if the needle doesn't move it means the fuse is broken

2. Check the condition of the cables on the PCB if there are any broken.

because generally small mice / nyinying love to bite the cable. Because in some cases something like this has been found. The fix is ​​to reconnect the cables that were cut off because of the animal's bite and close the hole in the pipe so that the animal can't get back into the ac unit.

If all these methods have been done but the AC still can't turn on, it can be confirmed that the PCB is really damaged and sentenced to death. how to fix it. Replace the PCB according to the AC brand, order to the service center for the AC brand, or in another way, namely buying a universal PCB that can be used for all kinds of AC brands.

so a little explanation about the damage to the PCB ac based on experience in the field. At least I'm sorry if there are errors in the delivery that are still unclear, you know I'm not just an AC repairman trying to share knowledge with others, for how to install the PCB maybe another time I'll post again considering that I don't have a picture yet.