Mirtone QSP‑217 50063 Trouble Inducator is a fire‑alarm voice evacuation indicator module used in industrial alarm panels. Common failure modes for this type of unit include burned or tripped power supply components, failed relay contacts, and damaged LED/indicator circuitry due to over‑voltage or moisture ingress. Begin by verifying the input voltage and inspecting the board for visible signs of burn marks or corrosion; check all solder joints on the power regulator ICs and relays. Next, test the indicator LEDs with a multimeter and confirm that the relay contacts are not sticking or shorted. Finally, review any error codes displayed on the panel’s main console to correlate with the inducer’s status indicators.[oss-gpt-20b]