Possible Causes - Power Fist 8154700 Mode D'emploi

Chapter 5 – Troubleshooting
5.1 Summary
WARNING:
Before repairing unit, disable the main switch or breaker.
If the welder isn't working normally, use the following information to pinpoint the possible cause. Compare
the trouble and symptoms with table 5-1 below. If a problem can't be found, open and inspect all parts and
wires.
WARNING:
All electrical repairs must be done by a qualified electrician.
PROBLEM
No input
Bad wire feed.
Current is too low.
Poor gas welding
performance.
When pressing switch,
unit does not work.
Table 5-1 Troubleshooting

POSSIBLE CAUSES

1. No voltage in input terminal.
2. Improper fuse or breaker.
3. Overload protective setting.
1. Not enough pressure.
2. Wing nut is too loose.
3. Wire is oxidated.
1. Input voltage is too low.
2. Bad connection.
3. Conductor elements have
been damaged.
1. Little or no gas.
2. Hole is blocked.
3. Hertzian valve is blocked.
4. Bad gas and wire.
1. Control valve broke off.
2. Circuit plate damaged.
REMEDIES
1. Check fuse or breaker.
2. Replace fuse or breaker.
3. Let cool for 15 min. and try
again.
1. Tighten the impactor nut.
2. Tighten wing nut.
3. Replace the wire spool.
1. Check that the input voltage
is the same as rated voltage.
2. Check grounding cable
connection.
3. Repair by qualified electrician.
1. Check gas supply.
2. Clean with compressed air.
3. Open and check welding
torch.
4. Replace gas and wire.
1. Repair valve by qualified
personnel.
2. Replace circuit plate.
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