Miller Electric SuitCase X-TREME 8VS Owner's Manual page 31

Trouble
Motor runs slowly.
Unit does not switch out of Soft Start.
Wire feeds when Jog switch is pressed
but not when gun trigger is pressed.
Wire stubbing on low end using a con-
stant current power source or feeder re-
sets.
Gas does not flow or does not stop flow-
ing; wire feeds.
Wire remains energized after trigger is
released.
Gun trigger is pressed, gas does not
flow, wire is not energized, wire feeds.
Display on display board does not light. Have Factory Authorized Service Agent check Control board PC1.
Segments on the display board are
missing.
Arc voltage on display board is not
accurate.
Weld amperage on display board is not
accurate.
Software and weld time information on
display board is not accurate.
Check and replace contact tip or liner if necessary.
Have Factory Authorized Service Agent check Control board PC1.
When soft start is on, motor will run slow until weld current is sensed by HD1.
Hub tension set too high (see Section 4-10).
Check transducer HD1 and connections, and replace if necessary.
Check gun trigger connection at wire feeder. Check gun trigger leads and trigger switch. See gun Owner's
Manual.
Have Factory Authorized Service Agent check Control board PC1.
Make sure CC/CV switch is in CC position (see Sections 5-1 and 5-2).
Increase power source inductance setting if available.
Increase output setting of power source or decrease wire feed speed.
Clear blockage in gas hose or replace hose.
Clear blockage in welding gun.
Clear blockage in filter (see Section 6-3).
Check gas valve.
Check coil voltage and connections of gas valve GS1. Check continuity of coil. Replace GS1 if necessary.
Have Factory Authorized Service Agent check Control board PC1.
Check contactor W1 to see if contacts are frozen closed.
If a welding arc is not established in 3 seconds after the gun trigger is activated, the unit will feed wire
without energizing the contactor or gas valve. The unit will feed approximately 35 feet (10.7 meters) of
wire, then stop feeding. This is to prevent complete despoolling of the wire, as in the case of a damaged
gun.
Replace display board.
Replace display board.
Arc voltage on the display board will show weld voltage at the feeder. Due to voltage drops in the weld
cables, arc voltage at the feeder will not match arc voltage at the welding power source. Due to averaging
of arc voltage, if weld time is less than 8 seconds the displayed arc voltage at the feeder may not be accur-
ate.
Check Motor Control PC1 and connections, replace if necessary.
Weld amperage displayed on the feeder will not match exactly with the weld amperage displayed on the
welding power source.
Check DIP switch settings on Display board PC20 (see Section 4-11).
Check transducer HD1 and connections, and replace contactor assembly if necessary.
Check Motor Control PC1 and connections, replace if necessary.
Check DIP switch settings on Display board PC20 (see Section 4-11).
Check Motor Control PC1 and connections, replace if necessary.
Remedy
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