The Inductotherm One IP 170‑2089‑2 is a mono‑firing control module used in induction heating furnaces, typically handling power delivery and safety interlocks for the single‑phase coil. Common failure modes on this class of modules include burnt or tripped MOSFETs/IGBTs, degraded gate drive circuits, fuse failures, and damaged input/output connectors; overheating can also cause insulation breakdown in the PCB traces. First‑check diagnostics: verify that the module receives its rated supply voltage (24 V DC for control logic and 380 V AC for coil power) and confirm no blown fuses or tripped breakers; inspect the board for visible burn marks, cracked solder joints, or swollen electrolytic capacitors; then review any stored fault codes via the diagnostic port or serial interface to pinpoint a specific component failure.[oss-gpt-20b]