DISTURBANCE POSSIBLE CAUSE REMEDY
TIG-process logic functions are
not working correctly
Faulty adjustment potentiometer
Faulty flat cable between
control cards A002 and A003
Faulty control card A002
Check the adjustment
potentiometers
Check the flat cable
(see page 23)
Replace control card A002
(see pages 28 and 29)
Mastertig 3500 W-cooling unit
doesn´t stay on, when operated
by it´s start switch
Faulty pressure switch
Faulty control card A005
Check the pressure switch
Check the control card A005 relays
Mastertig 3500 W-cooling unit
doesn´t start, when operated by
it´s start switch
The fuse F002 has blown
Faulty switch
Faulty auxiliary transformer
T004
Pump is jammed
Faulty startup capacitor
Faulty pump motor
Check the fuse and the fuse holder
Check the switch
Check the auxiliary transformer
T004
Check and clean the pump
Check the startup capacitor.
Check the pump motor
20
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