Brother T-8422C Instruction Manual page 88

14. TROUBLESHOOTING
Problem
13 Machine does not operate
at high speed.
14 Machine stops
sewing.
15 Nothing appears on the
operation panel display.
16 "GrEASEUP" flashes on
the operation panel when
the power is turned on.
79
Is the sewing speed setting or backtack speed setting incorrect?
Use the sewing speed control keys to set the high speed.
during Is the fixed stitch key turned on?
Press the fixed stitch key so that the indicator turns off.
Is the power supply voltage too low?
Check the power supply.
(If the power cord is too long or too many appliances are being
run from a single outlet, this may cause voltage drops which will
in turn cause the reset function to activate and stop the
machine, even if the power supply itself is normal.)
Is the power supply connector
disconnected from the control
box?
Insert
securely.
Is operation panel connector
P7 inside the control box
disconnected?
Insert
securely.
This display is to notify you that it is time to apply grease.
Apply grease.
T-8421C, 8422C, 8452C, 8722C, 8752C
Possible cause
the connector
the connector
Page
28
27
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2197B
14 15
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12*
4264M
57*