Brother S-7220B Instruction Manual page 68

14. TROUBLESHOOTING
Problem
17 Nothing appears on the
operation panel display.
18 "GrEASEUP" or
flashes in the
display when the power
switch is turned on.
61
Is the power supply connector
disconnected from the control
box?
Insert
securely.
Is the operation
connector
inside the control
box disconnected?
Insert
securely.
"GU" This display is to notify you that it is time to apply grease.
panel Apply grease.
Possible cause
the connector
panel
the connector
S-7220B
Page
2196M
11
10*
3154M
42, 44*