6 Trouble shooting and fault finding
Notes:
The following operations must be performed by qualified electricians with valid
certifications. Before maintenance, you are suggested to contact local distributor to verify
qualification.
Malfunctions and solutions of Arc 160-PFC.
Malfunctions
Solution
The meter show
nothing;
Fan does not rotate;
No welding output
Confirm the power switch is on.
Power supply available for input cable.
Check if the silicon bridge is damaged.
There is malfunction occurs in the supplementary power
source on control board (contact dealers).
The meter shows;
Fan works normally;
No welding output
Check if all the sockets in the machine are connected
well.
There is open circuit or badness of connect at the joint of
output terminal.
The control cable on the torch is broken off or the switch
is damaged.
The control circuit is damaged.(contact to dealers)
the meter shows;
Fan works normally;
Abnormal indicator
lights.
It might be over-current protection, please turn off the
power switch; restart the machine after the abnormal
indicator light winked.
It might be overheating protection, please wait for about
2-3 minutes until the machine renew without turn off the
power switch.
It might be multifunction of inverter circuit. (contact
dealers)
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