GALAGAR SMART MIG 350 MP Manual Técnico De Instrucciones página 29

There is output current when
pushing the torch trigger to feed
gas, but the wire feeder does
not feed wire.
Welding can be carried out
when pushing the torch trigger,
but the voltage cannot be
adjusted.
Welding current is unstable.
Malfunction phenomena
Weld bead is not well protected.
No gas flow when the torch
trigger is pushed, but the wire
feed operates normally.
The gas regulator cannot be
heated.
SMART MIG 350 MP
1. Check the wire feeder for clogging or damage.
2. Check the contact tip of welding torch for clogging or damage.
3. The wire feed PCB PH-119 inside the machine fails.
1. Check if the voltage feedback wire inside the machine is in good
condition.
2. The control PCB PK-131 inside the machine fails.
1. Check the pressure arm on the wire feeder for proper pressure.
2. Check if the drive roll matches the wire size being used.
3. Check the contact tip of the welding torch for wear. Replace it and
tighten it if necessary.
4. Check the welding wire for good quality.
5. Check if the torch cable is too twisted.
6. Check if the quick plug is loose.
1. Do not move the welding torch away immediately when stopping
welding, so that the shielded gas can protect the weld bead.
2. Prolong the post-flow time of the shielded gas, and contact our
company.
1. The control PCB is damaged.
2. The solenoid valve is clogged or damaged.
3. The transformer of the power supply is damaged.
1. Check if the plug of the heater is well plugged in.
2. Check if the resettable fuse inside the machine is in good condition.
3. Check if the heater inside the gas regulator is damaged.
4. The thermal resistor of the heater power supply is damaged.
Solution
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