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| TROUBLESHOOTING | ||||
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| Observe all Safety Guidelines detailed throughout 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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| Thermal LED is lit. | 1. Machine’ s | thermostat | has |
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| opened. Check for proper fan |
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| operation. There are two main |
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| fans in the PowerWave AC/DC. |
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| One machine is located in the |
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| lower portion of the machine |
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| which should be running when- |
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| ever the machine is on. The |
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| other fan is located in the upper |
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| portion of the machine and only |
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| runs when the machine is trig- |
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| gered. Check for material block- |
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| ing intake or exhaust louvers, or |
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| for excessive dirt clogging coo- |
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| ing channels in machine. |
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| 2. DC Bus PC board thermostat |
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| has opened check for excessive |
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| load on 40VDC supply. |
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| 3. Be sure process does | not |
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| exceed duty cycle limit of the |
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| machine. |
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| If all recommended possible areas |
| Machine won’t weld, can’t get any | 1. Input voltage is too low or too | ||||
| output. (CR1 will not pull in.) | high. Make certain that input | of misadjustments have been | |||
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| voltage is proper, according to | checked and the problem persists, | ||
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| the Rating Plate located on the | contact your local Lincoln | ||
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| rear of the machine. |
| Authorized Field Service Facility. | |
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| 2. If the Thermal LED is also lit, |
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| see “Yellow Thermal LED is Lit” |
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| section. |
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| 3.Primary current limit has been |
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| exceeded. Possible short in out- |
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| put circuit. Turn machine off. |
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| Remove all loads from the output |
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| of the machine. Turn back on. If |
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| condition persists, turn power off, |
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| and contact | an authorized |
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| Lincoln Electric Field Service |
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| facility. |
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4.This problem will normally be accompanied by an error code. Error codes are displayed as a series of red and green flashes by the status light. See "Troubleshooting the Power Wave / Power Feed System Using the Status LED" section of this text.
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.
