Product Manual

20/02/14 22270-GB
Trouble-shooting MAGIC WELD 200 YD - YDE
I
GB
F
M
40.1
REV.0-02/14
Problem Possible cause Solution
WELDING CIRCUIT
No current under no-load
conditions in weld mode
1) Faulty welding control board
2) Faulty Hall sensor
1) With a voltmeter check that between pins
A (-) and B (+) of the circular connector
on the front panel there is 5 Vdc.
Ask for intervention of Service Depart-
ment to replace the board.
2) Ask for intervention of Service Depart-
ment to replace the Hall sensor.
Irregular or inconsistent wel-
ding current
1) Faulty welding control board
2) Faulty Hall sensor
3) Chopper bridge short circuit
1) With a voltmeter check that between pins
A (-) and B (+) of the circular connector on
the front panel there is 5 Vdc.
Ask for intervention of Service Department
to replace the board.
2) Ask for intervention of Service Department
to replace the Hall sensor.
3) Ask for intervention of Service Department
to replace the Chopper Bridge.
Engine always at idle speed .
Engine always at maximum
speed
1) Faulty welding control board
2) Fault to the Auto Idle -
Economizer system
1) With a voltmeter check that between pins
A (-) and B (+) of the circular connector on
the front panel there is 5 Vdc.
Ask for intervention of Service Department
to replace the board.
2) Ask for intervention of Service Department
AUXILIARY POWER GENERATION CIRCUIT
No current under no-load
conditions in auxiliary power
mode
1) Auxiliary power diode bridge broken
2) Faulty inverter
3) Faulty alternator
Ask for intervention of Service Depart-
ment