Air conditioners have become indispensable for maintaining a comfortable indoor environment, especially during hot and humid weather. Modern air conditioning units often come equipped with special functions to enhance their performance and energy efficiency. Two such features are the “Automatic Defrost” and “Eco-Defrost” modes, which play crucial roles in ensuring optimal operation and cost-saving benefits....

Air conditioner circuit boards, also known as control boards or PCBs (Printed Circuit Boards), are vital components that regulate the operation of the unit. These electronic boards control various functions, such as temperature settings, fan speeds, and mode selections. However, like any electronic device, circuit boards can develop malfunctions over time, requiring repair or replacement....