Appendix 
Page 5 
How to Service (Case② Mullion is broken. Spring is not working….) 
Step1) Remove the mullion. 
Step2) Install the new mullion 
Step3) Check if the mullion works normally 
Mullion is broken  Not working. 
Broken mullion 
New mullion 
Button works normally 
<Video- To check if mullion is not broken> 
Opening door with the mullion opened, 
3~4 times. Verifying operation. 
※This is a test only!. 
  Instruct customer to use door handles only..