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| TROUBLESHOOTING |
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| Observe all Safety Guidelines detailed throughout this manual | ||||||||
| TROUBLESHOOTING GUIDE |
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| Observe Safety Guidelines | ||||
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| detailed in the beginning of this manual. | ||||
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| PROBLEMS |
| POSSIBLE AREAS OF |
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| (SYMPTOMS) |
| MISADJUSTMENT(S) |
| COURSE OF ACTION | ||||||
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| OUTPUT PROBLEMS |
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| Wire feeder won’t work. No lights, | 1. | Circuit breaker CB1 (on case |
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| apparently no power to wire feeder. |
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| front) may have opened. |
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| Reset. |
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| 2. | Control cable between the |
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| power source and wire feeder |
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| is “open”. Check continuity on |
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| all 5 leads from end to end in |
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| the control cable. |
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| 3. | Check for 40 volts DC on pins |
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| D (+40) and E (common) of |
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| the Wire Feeder Receptacle. |
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| If 40 volts DC is not present, |
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| and CB1 is reset, contact an |
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| authorized Lincoln Electric |
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| Service facility. |
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| Thermal LED is lit. |
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| 1. | Fan thermostat has opened. Check |
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| for proper fan operation. (Fan should |
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| run whenever main power is on.) |
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| Check for material blocking intake or |
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| If all recommended possible areas |
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| exhaust louvers, or for excessive dirt |
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| of misadjustments have been |
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| clogging cooing channels in machine. |
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| checked and the problem persists, |
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| 2. | Secondary rectifier thermostat has |
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| contact your local Lincoln |
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| opened. After machine has cooled, |
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| reduce load, duty cycle, or both. |
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| Authorized Field Service Facility. |
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| Check for material blocking intake or |
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| exhaust louvers. |
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| Machine won’t weld, can’t get any |
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| 1. | Input voltage is too low or too high. |
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| output. (CR1 will not pull in.) |
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| Make certain that input voltage is |
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| proper, according to the Rating Plate |
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| located on the rear of the machine. |
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| 2. | If the Thermal LED is also lit, see |
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| “Yellow Thermal LED is Lit” section. |
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| 3. | Primary current limit has been |
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| exceeded. Possible short in output |
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| circuit. Turn machine off. Remove all |
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| loads from the output of the machine. |
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| Turn back on. If condition persists, |
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| turn power off, and contact an autho- |
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| rized Lincoln Electric Field Service |
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| facility. |
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CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, con- tact your local authorized Lincoln Electric Field Service Facility for technical assistance.
