This field checklist explains how to troubleshoot temperature faults on a JINGCHENG electrically heated hose before replacing the assembly. It shows how to read the model code (for example JCH-200-16-B-3X220-P2-8) and match the sensor to the controller—Type J or Type K thermocouple, Ni120, PT100 (two-wire or three-wire) or PT1000. It then covers pin-table and connector checks, voltage and power (including PID controllers with SSR or thyristor output, and 2- or 3-channel control boxes), and installation mistakes that look like control failures: lateral twist, tight bends, cold routing and damaged jackets. A final eight-step checklist lists what to send with an inquiry. Read More