Brother International LZ2-B856E Instruction Manual - English and Spanish - Page 202

16. TROUBLESHOOTING 16. FEHLERSUCHE 16. RESOLUTION DES PROBLEMES 16. LOCALIZACION DE AVERIAS 16-3. List of error codes DANGER • Wait at least 5 minutes after turning off the power switch and disconnecting the power cord from the wall outlet before opening the face plate of the control box. Touching areas where high voltages are present can result in severe injury. CAUTION • Turn off the power switch and disconnect the power cord before carrying out troubleshooting, otherwise the machine will operate if the treadle is pressed by mistake, which could result in injury. If an error code appears in the LED display on the operation panel, check the error code and then turn off the power. (However, the error display will not disappear immediately when the power is turned off.) After the panel display turns off, remove the cause of the error and then turn the power back on. (Except for error EE6) Display Ec1 Details Needle zigzag position cannot be found. Cause Malfunction of home position sensor or harness Malfunction of zigzag motor or harness Malfunction of control circuit board Ec2 Zigzag motor overcurrent Zigzag mechanism operation is heavy Malfunction of zigzag motor or harness Malfunction of control circuit board Ec3 Overheating of control circuit Malfunction of cooling fan board heat sink Blocked air inlet in control box Malfunction of control circuit board temperature sensor Ec4 Ec5 Exhaust fan problem Malfunction of right-side fan (when looking from the rear) or harness Inside air recirculation fan prob- Malfunction of left-side fan (when looking from the rear) lem or harness Ec7 Needle zigzag data problem Malfunction of P-ROM or poor connection Problem with custom data Malfunction of control circuit board Ec8 Communication problem between CPUs Noise affecting transmission Malfunction of control circuit board EE1 Machine motor IC problem Blocked air inlet in control box Malfunction of machine motor or harness Malfunction of power supply circuit board EE2 Power supply voltage abnormal- Power supply voltage is too high ity (high) EE3 Power supply voltage abnormal- Power supply voltage is too low ity (low) EE4 Machine motor locked Timing belt is not fitted Loose pulley Load too great during sewing Malfunction of synchronizer or harness EE5 Blown solenoid fuse Malfunction of solenoid or harness Malfunction of control circuit board Incorrect fuse rating EE6 Starting input when power turned on (see note) Power turned on when treadle was depressed forward Power turned on when treadle was depressed backward Power turned on while actuator was being pressed Malfunction of treadle unit or harness Note: EE6: In this case, when the cause of the problem is eliminated (for example, the treadle is returned to neutral), SEt will appear on the LED display. When this happens, normal operation after turning on the power will return when the SET key is pressed. 183 LZ2-B855E,B856E