Does the band nozzle heater heat up? What is the reason?
Analysis of the reasons why the nozzle heater the heating coil does not heat: 1. The heating coil is broken; 2. There is no strong electric output; 3. The contactor is burned out; 4. The contactor has no control power; 5. The circuit is open.
Solution 1: Turn off the power of the band nozzle heater, remove the heating coil wire, and use a multimeter to check whether the heating coil is burnt out. Replace it immediately if it burns out.
Solution 2: Check the strong current used by the heating coil heating coil of the electric heating coil, and check with a multimeter. The general problem is that the thermal switch trips or burns out. Close the trip and then push it up again. If the switch is broken, the power will be replaced to solve the problem.
Solve the problem 3: First, check the contactor's control power supply for power. If there is power or no action, it is a contactor problem. Check if the contact is loose. After loosening and turning off the power, use a screwdriver to tighten the connector. If it breaks, replace it. Be careful to mark each line to prevent it from being remembered later.
Solution 4: No power to the control power is generally no output power on the 10 board of the computer. There are generally two problems. One is the fuse is burned out, and the other is the output point is burned out. If the fuse is burned out, replacing the fuse can solve the problem. If the output point is broken, you must use a spare output or repair 10 boards to solve it.
Solution 5: Use a multimeter to check the circuit one section at a time. After finding a broken section, replace or reconnect it.