6-2. Troubleshooting
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| Trouble | Remedy | |||
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No weld output; unit completely inop- | Place line disconnect switch in On position. | ||||
erative; ready light Off. |
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Check and replace line fuse(s), if necessary, or reset circuit breaker. | |||||
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| Be sure power cord is plugged in and that receptacle is receiving input power. | |
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No weld output; ready light On. | Check and secure loose weld cable(s) into receptacle(s). | ||||
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| Check and correct poor connection of work clamp to workpiece. | |
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No weld output; high temperature light | Unit overheated causing thermal shutdown. Allow unit to cool with fan On (see Section | ||||
On. |
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Reduce duty cycle or amperage. | |||||
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| Check and correct blocked/poor airflow to unit (see Section | |
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No weld output; high temperature light | Turn Power Off and back On again. If light continues to flash, check with Factory Authorized Service | ||||
Flashing. | Agent. | ||||
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No weld output. Blue light flashes contin- | Line voltage to high or to low. Line voltage must be within ±10%. | ||||
uously, yellow LED off. |
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Unit needs to be reset. Cycle power off and back on. If problem is not corrected, contact Factory Autho- | |||||
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| rized Service Agent. | |
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No weld output. Blue LED flashes 3 | Remote trigger left on. Turn off remote trigger, wait 5 seconds, and restart operation. | ||||
times repeatedly, yellow LED off. |
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Erratic or improper welding arc or out- | Use proper size and type of weld cable (see your Distributor). | ||||
put. |
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Clean and tighten weld connections. | |||||
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| Check and reverse polarity; check and correct poor connections to workpiece. | |
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Fan not operating. | Unit not warmed up enough to require fan cooling. | ||||
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| Check for and remove anything blocking fan movement. | |
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| Have Factory Authorized Service Agent check fan motor and control circuitry. | |
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Stick welding problems: Hard starts; | Use proper type and size of electrode. | ||||
poor welding characteristics; unusual |
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Check and reverse electrode polarity; check and correct poor connections. | |||||
spattering. |
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| Make sure a remote control is not connected. | |
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TIG welding problems: Wandering arc; | Use proper type and size of tungsten. | ||||
hard starts; poor welding characteris- |
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Use properly prepared tungsten. | |||||
tics; spattering problems. |
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| Check and reverse electrode polarity. | |
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TIG welding problems: Tungsten elec- | Shield weld zone from drafts. | ||||
trode oxidizing and not remaining bright |
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Check for correct type shielding gas. | |||||
after welding. |
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Check and tighten gas fittings. | |||||
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| Check and change electrode polarity. | |
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