Troubleshooting - WilTec TIG180 Operation Manual

Troubleshooting

Regular inspection and maintenance by a specialist are recommended.
Problem
Power indicator is not lit,
fan does not work/no
welding output
Power indicator is lit, fan
does not work or ro-
tate/no welding output
Fan is working, indicator
is not lit, no HF arc, no
arc
Error indicator is not lit,
HF arc-striking sounds,
but no welding output
Error indicator is not lit,
HF arc-striking does not
sound, arc forms
Error indicator is lit, no
welding output
Output current unstable
or out of potentiometer
control
Excessive weld spat-
ter/incorrect electrode
polarity
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http://www.WilTec.de
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Solution
•
The power switch is out of order.
•
Check that the electrical cable network (connected to the input
cable) is in operation.
•
Check if the input cable is out of order.
•
You may have incorrectly connected the device to the power
supply. Connect the device to a 230 V input voltage and turn it on
again. If it has been connected to a larger voltage source, the
overvoltage protection has been triggered. Connect the device to
the required 230 V AC mains connection. Wait a short moment,
then switch the device on at the main switch.
•
The 230 V power supply is not stable. Check the power cable for
damages and replace it, if necessary. Wait a short moment, then
switch the device on at the main switch.
•
The cable is not plugged in properly. Check the plugs.
•
Check whether the connectors are making bad contact.
•
Check the control circuit and find out the reasons for the failure.
•
Check whether the torch control cable is defective.
•
Contact vendor in case you cannot solve the problem.
•
Check whether the torch cable is defective.
•
Check whether the earth cable is interrupted or not connected to
the welding part.
•
The output connection of the positive electrode or the torch pow-
er supply is disconnected from the machine.
•
The power cable is not firmly connected to the power supply.
Check the plug connection.
•
The arc tip is oxidized or too far away. Distance between elec-
trode and workpiece should be 2–4 mm. Clean tip or replace
electrode.
•
Possibly caused by overheating protection. Switch the machine
off first and wait for it to cool down. Check if error remains after
re-turning on.
•
TIG welding cannot trigger overheating protection.
Several connectors have bad contact, especially inserts, etc.; check
them.
Electrode is connected incorrectly; replace the earth and handle cables.
Item 61707, 61708 Page 12
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