Troubleshooting - Helvi FOX 185 FLEX-LINE Manual De Uso

10.0
This chart will assist you in resolving common problems you may encounter. These are
not all the possible solutions.
PROBLEM
No "life" from welder
Fan operates normally, but
when gun trigger pulled,
there is no wire feed, weld
output or gas flow
Feed motor operates but
wire will not feed
Lack of penetration
Wire is birdnesting at the
drive roller
Wire burns back to contact
tip
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TROUBLESHOOTING

POSSIBLE CAUSE
Input cable, plug or main switch
malfunction.
Wrong size fuse.
Faulty trigger on gun
Thermostat intervention
Wrong contact tip diameter.
Faulty wire feeding motor (rare)
Insufficient feed roller pressure
Burr on end of wire
Liner blocked or damaged.
Contact tip clogged or damaged.
Voltage or wire feed speed too low.
Loose connection inside the
machine (rare).
Worn or wrong size contact tip.
Loose gun connection or faulty
gun assembly.
Undersized or damadged earth
cable.
Wrong size wire.
Wire inside the liner is not well
stretched.
Torch moved too fast.
Eccessive pressure on drive roller.
Gun liner worn or damaged.
Contact tip clogged or damaged.
Liner stretched or too long.
Contact tip clogged or damaged.
Wire feed speed to slow or arc
voltage too high.
POSSIBLE SOLUTION
Check for proper input cable connection
Check fuse and replace as necessary
Replace torch trigger
Allow welder to cool. The extinguishing of
the pilot lamp / switch on the front panel
indicates the thermostat has closed.
Check that the contact tip diameter is
correct for the loaded welding wire.
Replace wire feeding motor
Increase roller pressure
Re-cut wire square with no burr
Clear with compressed air or replace liner.
Replace contact tip.
Re-adjust the welding parameters or
select the Synergy Mode.
Clear with compressed air and tighten
all connections.
Replace the contact tip.
Tighten or replace torch.
Replace the earth cable.
Use correct size welding wire.
Load again the welding wire ensuing
it is well stretched and without creases.
Move the gun smoothly and not too fast.
Adjust pressure on drive roller.
Replace wire liner.
Replace contact tip.
Cut wire liner at the right lenght.
Replace the contact tip.
Increase wire speed or descrease arc
voltage.