The Thermo King MKB‑02.09_CAN Inverter is a 2,000 W pure sine‑wave power supply designed for use in commercial refrigeration and transport applications. Common failure points for this class of inverter include over‑temperature shutdowns due to fan or heat sink failure, input/output voltage irregularities from degraded capacitors or MOSFETs, and CAN bus communication errors caused by faulty connectors or firmware corruption. Begin troubleshooting with a visual inspection of the cooling system and power supply board for burn marks or loose connections; verify that the 12 V DC input is within spec and that the AC output waveform remains sinusoidal using an oscilloscope; then check the CAN interface for proper voltage levels, termination resistance, and any logged error codes.[oss-gpt-20b]