Solar module efficiency and dependability can be improved by detecting faults and monitoring their condition. This study examines the limitations and challenges of diagnosing solar module malfunctions. The various issues associated with solar module failure are thoroughly discussed. A monitoring tool that combines thermography and intelligent computing is developed to detect issues in photovoltaic cells while filtering out trivial anomalies based on a review of relevant studies. Given the rapid growth of solar energy, the Photovoltaic (PV) component's fault detection plays a crucial role in enhancing the reliability of the entire solar power system and identifying fault types whenever a system issue arises. As a result, this paper presents a hybrid strategy that employs the Chaotic Synchronization Detection Method (CSDM) and a Convolutional Neural Network (CNN) for PV module fault detection. With the explosive growth of the global Photovoltaic (PV) market, problem identification and resolution in PV systems have become equally important. Early issue detection can improve the efficiency, performance, and lifespan of a solar system. If PV flaws are not identified and addressed promptly, the plant's electricity production will be severely affected. Both on-site and online monitoring are possible for defect detection. Additionally, certain faults, such as ground faults, arc faults, line-to-line errors, and points of ignition, may pose fire hazards. Recently, researchers have proposed various methods for diagnosing and detecting PV issues. This paper provides an in-depth discussion of significant photovoltaic defects. It also highlights the distinctions, benefits, and drawbacks of the various fault detection approaches proposed in the available literature. A brief discussion of different solar cell modeling techniques is also included.