Lincoln Electric Power Wave S500 K2904-1 Operator's Manual page 38

POWER WAVE ® S500
Observe all Safety Guidelines detailed throughout this manual
PROBLEMS
(SYMPTOMS)
Input fuses keep blowing
Machine will not power up (no lights)
Machine won't weld, can't get any output.
This problem will normally be accompanied
by an error code. See "Status Light" section
of this document for additional information.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Lincoln Authorized Service Facility for technical troubleshooting assistance before you proceed.
WWW.LINCOLNELECTRIC.COM/LOCATOR
POSSIBLE
CAUSE
Basic Machine Problems
1. Improperly sized input fuses.
2. Improper Weld Procedure requiring
output levels in excess of machine rating.
3. Major physical or electrical damage is
evident when the covers are removed.
1. No Input Power
2. Input voltage is too low or too high.
1. Input voltage is too low or too high.
2. Thermal Error.
3. Secondary current limit has been
exceeded. (see error 54)
3a. Input control board fault (see input
control board error status).
E-5
TROUBLESHOOTING
RECOMMENDED
COURSE OF ACTION
1. Make sure fuses are properly sized. See
installation section of this manual for
recommended sizes.
2. Reduce output current, duty cycle, or
both.
3. Contact your local authorized Lincoln
Electric Field Service facility for technical
assistance.
1. Make sure input supply disconnect has
been turned ON. Check input fuses. Make
certain that the Power Switch (SW1) on
the power source is in the "ON" position.
2. Make certain that input voltage is correct,
according to the Rating Plate located on
the rear of the machine.
1. Make certain that input voltage is correct,
according to the Rating Plate located on
the rear of the machine.
2. See "Thermal LED is ON" section.
3. Possible short in output circuit. If
condition persists, contact an authorized
Lincoln Electric Field Service facility.