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User Manual
rev. 1.1 of 16.12.2019 EN
Original manual
Fanmig J5 MOST
-15-
Wire feed motor does not work No power supply Check the electrical connection
Poor operation of the welding torch
button
Check button
Damage to the control board Contact technical support
Motor damage Contact technical support
The wire feed motor operates but
without wire feed or with unstable
feed
The pressure arm is too loose Set the correct pressure with the
nut on the arm
Incorrect feed roll Turn or change the feed roll
The wire is blocked in the
contact tip
Exchange the contact tip.
The device turns off automatically and
the display shows error E2
Work cycle exceeded Let the device cool down
and follow the instructions for use
Fan does not work Contact technical support
Electric power source failure Contact technical support
Table 2: Faults during MIG/MAG welding
10.2 Errors occurring during MMA (STICK) welding.
Attention:
Make sure that MMA welding method is selected with switch (3).
Fault Potential cause Recomme
ndations
Excessive splatter Arc too long
Too high welding current
Adjust the welding current to the
electrode diameter.
Crater at the end of the weld Too quick detachment of the electrode
from workpiece
Tear off the electrode at the end of
the weld "sensitively".
Weld inclusions, slags
• Material not clear
• Stitches too thick
• Incorrect electrode leading
Clean the material before welding
Guide the electrode according to
the welding technology
Lack penetration or no sticking
• Too high
welding speed
• To low welding current
• Too small bevel angle
• Dirty or corroded weld edges
Clean the material before welding.
Guide the electrode according to
the welding technology
Adhesion of the material to the
welded material
• Arc too short
• To
low welding current
Adjust the welding current to the
electrode diameter.
Bobbles in weld
• Wet electrode or water around the weld
• Arc too long
Dry the electrodes in the dryer.
Adjust the welding current to the
electrode diameter.
Cracks present after welding
• Too high welding current
• Soiled material
• Moisted cover
Adjust the welding current to the
electrode diameter.
Table 3: Faults during MMA welding.