2024/11/12 
(1) Take of 4 screws on top of furnace , then open the cover, as Fig 1
(2) Take off the screw of clip for heating element, as Fig 2
(3) Take off aluminum plates between connection of heating element, as Fig. 3
(4) Take off the screws of metal clip for fixing ceramic block, as Fig 4
(5) Take off the ceramic black between rods of U type heating element, as Fig 5
(6) Take off the U type heating element which need to be replaced, as Fig. 6
(7) Replace a new heating element. Please put ceramic block together with the heating element, and make sure the ceramic block shall flat position as before, as Fig 7.
(8) When tighten the screw of metal clip for heating element, please make sure the bottom of U heating
element does not touch the bottom of furnace chamber. Usually the bottom of U element shall rise 5mm height from the bottom of furnace chamber
(9) Then, follow the procedure 4, 3, 2, 1 to tighten screw and finish the exchange of every heating element
