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TROUBLESHOOTING
Fault tracing
Description
When
welding, the
fan does not
Measurement
work. All
other
7
components
work
properly.
Other
functions
are normal,
and the
Measurement
output
8
voltage is
only 63V
(ES180i Pro,
ES 200i Pro).
0463 714 001
Solution / Remedies
Step 1:
Remove the fan, test if there is 24 V DC at pin 2, in CN201
fan connector of the main control PCB.
If there is, the fan is defect, replace it.
Step 2:
If there is no 24 V DC, then the main control PCB is defect,
replace it.
Step 1:
Reinsert or replace the control line which connects the PFC
board and the inverter board. If the fault persists continue to
Step 2.
Step 2:
Replace the PFC board.
- 51 -
© ESAB AB 2020
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