Heater is the consumable part of the machine, generally, the using time is about six months, when we operate the machine in right way, but the temperature can not raising, maybe we should replace a new heater, Following is how to replace heater。
Turn off the screws; take the heater from heat gun, remove the linked screws with pliers, put the new heater in the heat gun, close the heat gun, and then tighten the screws.