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TROUBLESHOOTING & REPAIR | |||||||
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| Observe Safety Guidelines |
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| TROUBLESHOOTING GUIDE | |||
| detailed in the beginning of this manual. |
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| PROBLEMS | POSSIBLE AREAS OF | RECOMMENDED |
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| (SYMPTOMS) | MISADJUSTMENT(S) |
| COURSE OF ACTION |
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| LED FUNCTION PROBLEMS |
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| The Thermal LED is lit after normal 1. One of the machine’s | thermal | 1. | Check all connectors and wires | |||
| use. | protection circuits has | tripped. |
| for loose or faulty connections. | ||
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| Do not turn the |
| See Wiring Diagram. |
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| Allow the machine to cool. The | 2. | The inverter board may | be | ||
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| thermal protection circuits will | |||||
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| faulty. Replace. |
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| reset themselves. |
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| 2. Either the duty cycle has been | 3. The control board may be faulty. | ||||
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| Replace. |
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| exceeded, the fan is not func- |
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| tioning, or the louvers are | 4. | Use the correct extension cord. | |||
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| blocked. |
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| See the instruction manual. |
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3.Thermo light comes on when over voltage occurs
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call