The Tecnifor CN212CP/K is a pneumatic pressure control unit used in industrial marking or stamping systems, typically operating at 6 bar with a 24 VDC power supply and an 80 W rating. Common failure points for this class of units include degraded pressure transducer accuracy, clogged air filters causing pressure drop, and insulation breakdown on the 24 VDC control circuit leading to erratic operation or no output. First‑check diagnostics: verify that the 24 VDC supply is within spec and stable; inspect the pressure sensor and filter for contamination or leakage; review any error codes displayed on the unit’s panel or linked PLC for indications of over‑pressure, under‑pressure, or sensor fault conditions.[oss-gpt-20b]