Brother S-7200B Instruction Manual page 73

(Error code)
Items with a " * " in the "Page" column should only be checked by a qualified technician.
For items with " ** " appearing in the "Page" column, ask the place of purchase for advice.
Error code
If you continue to use the sewing machine for a certain length of time without applying
grease (and without carrying out the reset operation) after "GU" has appeared on the
-0
control box panel, this will be displayed.
(Grease up)
Is DIP switch No.4 inside the control box set to
ON?
-1
(Dip switch 4)
1
Overvoltage
2
Overcurrent
3
Encoder error
4
Motor lock
5
Safety switch operated
6
Voltage drop
7
Panel communication error
8
Over time
9
Motor overheating abnormally
10
Solenoid overcurrent
11
Problem with motor overheating sensor
12
Solenoid power supply error
13
Treadle unit error
14
Head detector unit error
15
Problem with sewing machine motor operation
16
Thread trimming solenoid timeout
18
EEROM error
19
Control box overheating
20
Treadle pedal position error
21
Thermistor error
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.
If an error code is displayed on the control box panel
1. Make a note of the error code and then turn off the power.
2. After the display of the control box panel turns off, eliminate the cause of the error and
then turn the power switch back on.
Apply grease and then carry out the reset procedure.
Set DIP switch No.4 to OFF.
Possible cause
Refer to pages 62-65 for the items corresponding to
these error codes.
S-7200B
14. TROUBLESHOOTING
3161M
Page
45*
*
3160M
66