Brother S-7220B Instruction Manual page 72

14. TROUBLESHOOTING
Error code
Err 21
(Thermistor error)
Err 100
(GrEASEUP)
Err 101
(diP SW4)
If an error code that is not listed above appears or if carrying out the specified remedy does not solve
the problem, contact the place of purchase.
65
Is connector CN16 inside the control box
disconnected?
Insert the connector securely.
This appears on the display when the sewing machine has continued to be used for
a certain period after the "GrEASEUP" notification appears without the grease being
applied (without the reset procedure being carried out).
Apply grease and then carry out the reset procedure.
Is DIP switch No.4 inside the control box set
to ON?
Set DIP switch No.4 to OFF.
Possible cause
S-7220B
Page
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3159M
42*
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3160M