Tweco 300 TS Arcmaster(April2006) User Manual
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SECTION 12: POWER SOURCE ERROR CODES
Description
Possible
Cause
Remedy
Remarks
1 E01 error code displayed
Temperature sensor TH1
(protects IGBTs) is greater
than 80ºC for about 1 second.
A
B
C
The Welding Power
Source’s duty cycle
has been exceeded.
Fan ceases to operate.
Air flow is restricted
by vents being
blocked.
A
B
C
Let Power Source
cool down then keep
within its duty cycle.
Have an accredited
Thermal Arc Service
Agent investigate.
Unblock vents then
let Power Source
cool down.
Weld current ceases.
Buzzer sounds
constantly. Fan
operates at max
speed. E01 resets
when TH1 decreases
to 70ºC for about 30
seconds.
2 E02 error code displayed
Temperature sensor TH2
(protects secondary diodes)
is greater than 80ºC for
about 1 second.
A
B
C
The Welding Power
Source’s duty cycle
has been exceeded.
Fan ceases to operate.
Air flow is restricted
by vents being
blocked.
A
B
C
Let Power Source
cool down then keep
within its duty cycle.
Have an accredited
Thermal Arc Service
Agent investigate.
Unblock vents then
let Power Source
cool down.
Weld current ceases.
Buzzer sounds
constantly. Fan
operates at max
speed .E02 resets
when TH1 decreases
to 70ºC for about 30
seconds.
3 E03 error code displayed
Primary (input) current
too high.
A
B
Primary current is too
high because welding
arc is too long.
Mains supply voltage
is more than 10%
below nominal
voltage.
A
B
Reduce length of
welding arc.
Have an accredited
Thermal Arc Service
Agent or a qualified
electrician check for
low Mains voltage.
Weld current ceases.
Buzzer sounds
constantly. Switch
machine OFF then ON
to reset E03 error.
4 E04 error code displayed
Output voltage exceeds the
secondary voltage
specification.
TIG torch cable and/or
work lead are too long
or leads are coiled.
Reduce the length of
the TIG torch cable
and/or work lead or
un-coiled leads.
Weld current ceases.
Buzzer sounds
constantly. Switch
machine OFF then ON
to reset E04 error.
5 E11 error code displayed
Over Primary supply (input)
voltage at primary capacitors
is exceeded for one second.
Primary
supply
voltage is greater than
the nominal voltage
plus 10%.
Have an accredited
Thermal Arc Service
Agent or a qualified
electrician check the
Primary voltage.
Weld current ceases.
Buzzer sounds
constantly. Error code
E11 automatically will
reset when the
voltage reduces.