19
FAULT POSSIBLE CAUSE REMEDY
TROUBLE SHOOTING (Cont.)
(SYMBOL*)
FOR TECH. SERVICE, CALL 1-800-232-9353
EQUIPMENT MALFUNCTION (Cont.)
Main power on, Loose torch thumb screw. Tighten thumb screw.
torch Broken or loose connection. Check cables for
trigger continuity.
activated, Repair or tighten
no welding connections.
current, but Unplugged or faulty power Plug in or replace
gas flows & contactor switch.
(W)
switch.
wire feeds. 208/230V selector wires off. Reattach wire.
(W)
"Opened" thermal switch. Allow unit to cool, then
(TP1 & TP2)
retry.
Faulty diodes.
(D1-D8)
Check diodes. See page
21.
Main power on, No shielding gas Replace tank.
torch - tank empty.
trigger Loose or broken Tighten or repair
activated, connections. connections.
no gas flow, Faulty Gas solenoid Repair or replace
but contactor valve.
(GS)
valve.
operates & Clogged gas flow path. Locate & clean clog.
wire feeds.
FAULTY WELDS
"Jerky" or Worn , kinked or dirty torch Clean or replace
"slipping" liner. liner.
wire feed. Wire spool turns too Lubricate spool shaft.
hard. Set drag adjustment.
Worn double v-groove drive Replace drive roll.
roll.
Weak pressure roll spring. Replace spring.
Worn or dirty contact tip. Replace contact tip.
Worn inlet guide(s). Clean or replace guides.
Sticking pressure roll. Replace pressure roll.
Feed roll tension incorrect. Adjust feed roll
tension. See page 11.
(continued on following page)
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