Why does the thermostat of the ubushushu obuphezulu kwiziko lombane keep heating up?

1. It is normal for the temperature of the high-temperature electric furnace to exceed the set temperature, but it is a bit too much to exceed 50°C. Generally, it is normal for the temperature to exceed 15-20°C. It is recommended to change a program temperature controller for better temperature control.

2. If the temperature has not cooled down after one hour, it is possible that the place where the thermocouple is connected is burned out or the thermocouple is damaged. It is recommended to overhaul it.

1. There may be a problem with the parameters of the temperature controller, and the PID parameters of the temperature controller need to be adjusted.