Shielded Metal Arc Welder
3
5
2
On/
Off
4
1
Switch
S1
6
Plug
Ground
L1
L2
Green
Black White
Figure 16 - Wiring Schematics
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Symptom
Welder does not hum when
turned on
Welder hums but does not
weld
Welder gives trickle shocks
Welder overheats - blows
fuses, trips circuit breaker
Arc difficult to strike
www.campbellhausfeld.com
To Ground
Clamp
Thermal
S2
Breaker
To
Electrode
Holder
Thermal
S2
Breaker
ALL MODELS
EXCEPT WS090001
Troubleshooting Chart - Welder
Possible Cause(s)
1. No power at receptacle
2. Broken or damaged power
cable
1. Inadequate current at electrode
2. Poor connections at welder
1. Accidental contact with work
piece
2. Current leakage caused by
moist clothing or work area
1. Use of extension cord
2. Electrode diameter too large
3. Overloaded circuit
1. Wrong type of electrode
2. Electrode diameter too large
3. Work piece not properly
grounded
4. Heavy loads making power line
voltage low
Switch
S1
L1
L2
Black
White
Corrective Action
1. Check circuit fuse or circuit breaker
2. Power cable requires service
1. Check work clamp, cable and connection to work piece.
Check electrode cable and clamp
2. Check all welder external connections
1. Avoid contact with work piece
2. Make sure clothing and work area are dry
1. If possible, relocate welder to avoid use of extension cord. If
relocation of welder is not possible, use thicker (lower gauge
number) extension cord
2. Use smaller diameter electrode
3. Welder requires a dedicated 115V circuit
1. Verify that electrode is for alternating current (AC) use
2. Use smaller diameter electrode
3. Verify proper grounding. (No paint, varnish or corrosion)
4. Run welder on dedicated 115V circuit
8
To Work Clamp
Thermal
S2
Breaker
Thermal
YE
S2 fl 127
Breaker
Ground
PE
MODEL WS090001
Green
To
Electrode
Holder