York YEFE BZTM-MOW1 Series Service Manual page 52

2. Electrical parts (Antistatic gloves must be worn.)
Procedure
1) Remove the 2 screws and remove the
cover of electronic control box. (see
CJ_CASSETTE_004 )
2) Remove the 2 screws of the
main control board. (see CJ_
CASSETTE_005)
Note: This section is for reference only. Actual unit appearance may vary.
 Page 48 
Illustration
CJ_CASSETTE_004
CJ_CASSETTE_005