The Linear SW‑1375 24790 Timer & Warning Module is an industrial timing and alert circuit used in gate control or safety interlock systems, typically powered from a 24 V DC supply and providing programmable delay outputs and warning LEDs or relay contacts. Common failure points for this class of modules include burned-out MOSFETs or relays on the output stage, cracked PCB traces due to vibration, and degraded electrolytic capacitors in the power filtering section. First‑check diagnostics: verify the input voltage and polarity with a multimeter; inspect the board for visible burn marks, broken traces, or swollen capacitors; and test the output signals against the expected timing sequence using an oscilloscope or logic probe.[oss-gpt-20b]