TROUBLESHOOTING | ||
| Observe all Safety Guidelines detailed throughout this manual |
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PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
GREEN LED OFF, Fan not operat- | 1. | Plug unit into 115V outlet. | |
ing. No Input Power. |
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| 2. | Reset Breaker. |
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GREEN LED ON, YELLOW | 1. Make sure the unit has not been | ||
Overtemperature / under pressure |
| operated beyond duty cycle limits. | |
LED ON. Unit is overheated. |
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| 2. | Air Flow obstructed. |
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GREEN LED ON, YELLOW Over | 1. Air not connected or pressure too | ||
temperature / under pressure LED |
| low. Check source for at least | |
blinks. No air flow in purge or pre- |
| 72.5 PSI (5 Bar) during purge or | |
flow. |
| ||
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| PSI (4.5 Bar). |
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| 2. | Air filter or air line blocked, torch |
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| blocked. Replace filter cartridge. |
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| Check that air line and torch leads |
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| are free of twists and kinks. |
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GREEN LED ON, YELLOW Over | 1. | Shield cup not properly installed | |
temperature / under pressure LED |
| on torch. Check that shield cup is | |
OFF, no air flow when torch switch |
| fully seated against torch. | |
pressed. |
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| |
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| 2. | Faulty Torch Switch or Parts |
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| Assembly in torch holder. Refer to |
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| “Operations Section” (Torch |
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| Consumable Parts). |
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| 3. | Faulty Main PC Board Repair / |
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| Replace Power Supply. |
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GREEN LED ON, YELLOW Over | 1. | Faulty torch parts. Inspect torch | |
temperature / under pressure LED |
| parts and replace if necessary. | |
OFF. Air flows, Pilot arc does not |
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| |
start. | 2. | Faulty main PC Board. Repair / | |
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| replace. |
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Torch has pilot arc but does not cut. | 1. Work lead not connected. Make | ||
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| sure work lead is connected |
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| securely to bare metal. |
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| 2. | AC input power too low. Use |
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| shortest distance to breaker panel |
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| possible. |
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| 3. | Faulty Main PC Board. |
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| Repair/Replace. |
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If all recommended possible areas of misadjustment have been checked and the problem persists, Contact
your local Authorized Field Service Facility.
CAUTION
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
PLASMA 20