How to solve the slow heating of resistance furnace

1. The power supply voltage is normal, the controller is working normally, the ammeter has no display, and the common fault is that the electric furnace wire is broken, which can be checked with a multimeter and replaced with the electric furnace wire of the same specification.

2. The power supply voltage is normal and the controller cannot work. The internal switches, fuses and furnace door travel switches in the controller can be overhauled. If the furnace door of the electric furnace is not closed and the controller cannot work, please refer to the controller manual for troubleshooting methods of the controller.

1. Power supply failure: it works normally when it is not connected to the electric furnace, and does not work normally when it is connected to the electric furnace. The controller emits a continuous clicking sound. The reason is that the voltage drop of the power supply line is too large or the socket and the control switch are not in good contact. Adjust or replace.