Appendix. Detail repair instruction(Based on gas model) 
Service Bulletin 
Grate 
Knob 
 1. Remove all knobs.(In case of gas model, also remove all grates) 
 2. Disassemble the 2 black screws on the front of the manifold.(For the gas model, four screws must be disassembled.)  
     And disassemble the screws on both sides. 
Screw 
(Left side) 
4 screws only for gas model 
Black  
screw 
Black  
screw 
Product : LG Gas/Elec. Oven 
Bulletin # : CVZ201900039-02 
Release Date : 2020.03.13