What are the reasons for the heating failure of the high temperature box-type resistance furnace

1. Heating element: The direct consequence of heating element failure is that the high temperature box-type resistance furnace heats up slowly, or the temperature does not meet the requirements for use, usually because of the heating element failure.

2. Power supply: Power failure may also cause the electric furnace to heat up slowly, but it is more likely that the electric furnace does not heat up, mainly because the power supply voltage is abnormal or the power supply is damaged.

3. Electric furnace controller: The main manifestation of the damage of the electric furnace controller is that the electric furnace does not heat up. It is very likely that the internal switch of the controller is damaged, or the fuse and the furnace door travel switch are damaged.