PROBLEMS/SERVICE
FABRICATOR 252i
Manual 0-5155
5-1
PROBLEMS AND ROUTINE SERVICE
SECTION 5: POWER SOURCE PROBLEMS AND ROUTINE SERVICE
REQUIREMENTS
5.01 Power Source Problems
Error Code
CAUSE
REMEDY
ERR
01
Over Temperature
Fault
OverTemp signal from
Power board indicates Over
temperature fault condition of
power components
A. Decrease duty cycle of welding activity
B. Ensure that air vents are not blocked/
obstructed
C. Consult an Accredited Tweco Service
Provider.
ERR
02
Input Power Fault
Signal from Power board
indicates input power voltage
is out of range (too high or
too low)
A. Check input power connections and cables
for damage or improper insertion
B. Verify input voltage levels meet product
requirements
ERR
03
VBIAS Voltage Low
Fault
Controller board circuit
monitor indicates 15 volt
supply is too low
(< 13.7 VDC)
Consult an Accredited Tweco Service Provider.
ERR
04
Ground Fault
Excessive current detected
on Ground wire of power
connection
A. Isolate welder chassis from work piece.
Check workpiece ground connection.
B. Check for MIG wire feed problem in spool/
feedplate. Verify wire is not contacting
chassis.
ERR
08
Input Sensor Fault
Unexpected reading of voltage
or current sensor during
power-up self test
A. Inspect ribbon cable between power supply
and display board.
B. Consult an accredited Tweco service
provider.
ERR
09
Fan Fault
Cooling Fan Failure detected
on Inverter board
A. Examine fan vents for potential obstruction.
B. Consult an Accredited Tweco Service
Provider.
ERR
10
Inverter Output Fault Substandard output voltage
condition detected by
controller before weld started
Consult an Accredited Tweco Service Provider.
ERR
14
Trigger Fault
Fault occurred detecting
trigger state/condition
A. Trigger may be already activated when MIG
process mode is selected - verify that trigger
is not accidentally activated
B. Trigger may be faulty and/or dirty, test and
replace MIG Gun/trigger device
ERR
15
Wirefeed Fault
Welder detects prolonged
open circuit during MIG weld
A. Inspect MIG wire spool and feedplate for
improper tension or 'bird's nest'.
B. Inspect MIG Gun and cable for damage or
obstruction
C. Consult an Accredited Tweco Service
Provider.
ERR
23
Weld Fault
Welder detected a fault during
the weld process
Consult an Accredited Tweco Service Provider
if symptom recurs frequently.
