Lincoln Electric 11694 Service Manual page 31

®
POWER WAVE S350
POWER FACTOR CORRECTION CONTROL BOARD TEST
LED # COLOR
2 GREEN
1 RED
• Pause before repeating the code: 3.5 seconds.
• Pause between digits of the code: 1.5 seconds.
• Pause between sounds/flashes indicating a specific digit: 0.5 seconds.
Figure F.5 – PFC control board plugs
J26
J23
J24 LED 1
G5915 PFC CONTROL BOARD
FUNCTION
15 VDC power supply function properly when on.
Error code (LED will flash error and buzzer will sound). See table below for details.
ERROR CODE
ERROR
331
334
335
336
337
346
LED 2
J27
BUZZER
J25
EXPLANATION
Peak input current limit.
Start up current check failure.
Start up voltage check failure.
Thermal fault (no first stage fan).
Precharge timeout.
Transformer primary overcurrent.
TROUBLESHOOTING AND REPAIR
(continued)
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