Troubleshooting And Fault Finding - ANDELI MCT Series Owner's Manual

case, you do not have to unplug the power supply so that the cooling fan can continue to work to
cool the welder. When the digital display shows -E2 goes out, the temperature drops to the
standard range and the welding can be restarted.
NOTICE: In the period of guarantee maintenance, if user makes wrong check and repair for
malfunction of welding machines without our permission, the free maintenance guarantee offered
will be invalid
7.

TROUBLESHOOTING AND FAULT FINDING

Blind experiment and careless repair may lead to more problems and make formal check and
repair more difficult. When the machine is electrified, the bared parts contain life-threatening
voltage. Any direct and indirect touch will cause electric shock, and severe electric shock will
lead to death.Power must be turned off for all checking and maintenance, before opening the
housing, make sure the power plug is disconnected.
7.1 Remove dust by dry and clean compressed air regularly, if welding machine is operating in
environment where is polluted with smokes and pollution air, the machine need removing dust
everyday.
7.2 Pressure of compressed air must be inside the reasonable arrangement in order to prevent
damaging to small components of inter-machine.
7.3 Check inter circuit of welding machine regularly and make sure the cable circuit is connected
correctly and connectors are connected tightly (especially insert connector and components). If
scale and loose are found, please give a good polish to them, then connect them again tightly.
7.4 Avoid water and steam enter into inter-machine, if they enter into machine, please dry
inter-machine then check insulation of machine.
7.5 If welding machine will not be operated long time, it must be put into packing box and store in
dry environment.
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