Automatic granule packaging machine heating tube does not heat

1. Check that the thermostat has selected the correct temperature.

2. If the temperature display shows characters and flashes, the thermocouple is not turned on, insert the plug.

3. Check whether the heating tube is connected to the power supply and whether the joint is in good contact. If the heating tube is connected to the power supply and the heating tube does not heat, the heating tube should be replaced.

4. Check whether the horizontal seal circuit breaker (DZ47-60 C20) and the longitudinal seal (DZ47-60 C15) are maintained or damaged. Check whether the solid state relay in the circuit is damaged (horizontal seal → SSR2, vertical seal → SSR1)