Reason: A. For the adjustable temperature control heating tube, the contact of the temperature controller is poorly contacted or melted and disengaged.
B, power supply is abnormal or power outage;
C, the resistance wire has been blown;
D. The power cord plug is not in good contact with the electric hot socket, or the power cord is disconnected;
E, the electric heating tube has been burned;
F, electric heating tube lead or lead wire off;
Solution: A, the heating pipe is not easy to repair, it is recommended to replace;
B. After the power supply is normal, use it;
C, the heating tube is scrapped, and the same type of resistance wire is re-produced;
D. Check the line for repair or replacement;
E. Replace and install the same size electric heating pipe;
F, re-weld the lead or lead;