Troubleshooting
142 Operating Instructions 867 - 04.0 - 03/2018
10.2.2 Error messages
Code
Error/
warning
Possible cause Remedial action
1000 Error Sewing motor encoder 
plug (Sub-D, 9-pin) not 
connected
• Connect encoder cable 
to the control, use 
correct connection
1001 Error Sewing motor error: 
Sewing motor plug 
(AMP) not connected
• Check connection and 
plug in, if necessary
• Test sewing motor 
phases (R= 2.8 Ω, high 
impedance to PE)
• Replace the encoder
• Replace sewing motor
• Replace the control
1002 Error Sewing motor insulation 
fault
• Check sewing motor 
phase and PE for low-
impedance connection
• Replace the encoder
• Replace sewing motor
1004 Error Sewing motor error: 
Incorrect sewing motor 
direction of rotation
• Replace the encoder
• Check plug assignment 
and change, if 
necessary
• Check wiring in 
machine distributor and 
change it, if necessary
• Test sewing motor 
phases and check for 
correct value
1005 Error Sewing motor blocked • Eliminate stiff 
movement in the 
sewing machine
• Replace the encoder
• Replace sewing motor
1006 Error Maximum speed 
exceeded
• Replace the encoder
• Perform reset
• Check class (t5104)