Chapter 1 Introduction 
 VFD-EL-W 
1-6     
 
 
Remove the control board cover 
As shown in Step 1 below, gently press the control 
board cover. Then,  
as shown in Step 2, pull it down slowly to remove it. 
 
Step 1 
 
Step2 
Remove cooling fan: 
To remove the cooling fan of Frame B, gently release the 
clips on both sides of the cooling fan.