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Idiomas disponibles
Idiomas disponibles
Error
Error
type
code
Switch
E23
E30
Accessory
E31
E40
Communication
E41
5.4. MMA Welding trouble shooting
The following chart addresses some of the common problems of MMA welding. In all cases of
equipment malfunction, the manufacturer's recommendations should be strictly adhered to and
followed.
Trouble
No arc
Porosity: small cavities or holes
resulting from gas pockets in
weld metal
Description
Torch fault during normal working process
Cutting torch disconnection
Water cooler disconnection
Connection problem between wire feeder and
power source
Communication error
Incomplete welding circuit
No power supply
Wrong mode selected
Arc length too long
Work piece dirty, contaminated
or moisture
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Reason
LED
status
Yellow LED
(thermal protection)
always on
Red LED blink
Yellow LED
(lack water) always
on
Solutions
Check earth lead is
connected. Check all
cable connections
Check that the
machine is switched
on and has a power
supply
Check the MMA
selector switch is
selected
Shorten the arc length
Remove moisture and
materials like paint,
grease, oil, and dirt,
including mill scale
from base metal
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