Miller XR-S Control Owner's Manual - Page 30
Browse online or download pdf Owner's Manual for Welding System Miller XR-S Control. Miller XR-S Control 40 pages. Wire feeder and feeder gun
Print Page7-4. Troubleshooting
Trouble
Pressing gun trigger does not energize
feeder. Shielding gas does not flow and
wire feeder does not feed.
Wire feeds, shielding gas flows, but
welding wire is not energized.
Wire feeds erratically.
Arc varies and welding wire is kinked
when feeding out gun.
No weld output; gun/feeder does not
work.
Erratic weld output.
Wire does not feed; burnback in contact
tip.
Gun overheating
(water-cooled models).
Motor does not run.
OM-245777 Page 26
Secure plug from gun control cable into Gun Control receptacle on feeder (see Section 5-3).
Have nearest Factory Authorized Service Agent check optional water flow switch, if applicable.
Check to see if ground clamp or weld cable is connected.
Verify proper motor torque switch setting is selected (see Section 6-3).
Check drive roll pressure in wire feeder and gun (see Section 5-8).
Clean or replace drive rolls as necessary.
Check and replace liner if necessary.
Verify proper motor torque switch setting is selected (see Section 6-3).
Check gun control cable connection on wire feeder front panel (see Section 5-3).
Tighten and clean all connections.
Replace contact tip.
Verify proper motor torque switch setting is selected (see Section 6-3).
Check drive roll pressure in wire feeder and gun (see Section 5-8).
Check and replace liner if necessary.
Verify drive roll size is correct.
Check drive roll pressure in wire feeder and gun (see Section 5-8).
Check and replace liner if necessary.
Be sure coolant flow rate is at least 1 qt/min.
Corrosion buildup in gun decreasing coolant flow rate. Backflush coolant system, clean coolant system
filter, and clean fittings.
Check drive roll pressure in wire feeder and gun (see Section 5-8).
Check and replace liner if necessary.
Have Factory Authorized Service Agent check feeder.
!
Disconnect power before troubleshooting.
Remedy