E-4
TROUBLESHOOTING
E-4
INVERTEC® V350-PRO
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility
for technical troubleshooting assistance before you proceed.
CAUTION
Fault Codes
Code Description
Corrective Action
31
Primary over current.
If condition persists
The machine needs to
contact an authorized
be turned off and back
Lincoln Field Service
on to reset the machine.
Shop
32
CAP bank A under voltage.
Check input power
Self-clearing as
33
CAP bank B under voltage.
reconnect to make sure condition ceases.
34
CAP bank A over voltage.
the machine
35
CAP bank B over voltage.
is connected for the input
37
Soft start Failed.
power being supplied.
Cycle power.
39
Glitch on the primary over
Check the machine
Self-clearing as
current fault interrupt; possibly
ground.
condition ceases.
caused by noise or a signal level
If problem persists
(misc. hardware fault #1)
contact an authorized
Lincoln Field Service
Shop
43
CAP delta; CAP A and B are out
Check input power
of balance.
reconnect to make sure
the machine is
connected for the input
power being supplied.
44
Main CPU problem. The DSP
Check the machine
has detected a problem with the
ground.
CPU.
47
Possible erroneous electrical
If problem persists
noise on Voltage/Frequence
contact an authorized
capacitor feed back circuit.
Lincoln Field Service
Shop
(misc. hardware fault #2)
48
The main contactor opened
If condition persist
Self-clearing
unexpectedly. (misc. hardware
contact an authorized
fault #3)
Lincoln Field Service
Shop
"bad The selected weld mode does
If condition persists
Press the Mode
nodeʼ not exist in the weld table that is
contact an authorized
Select button to
“####” presently loaded in the machine.
Lincoln Field Service
select a different
Shop
mode
