Tweco 200 ACDC Arcmaster(April2006) - Manual (Page 64)

ARCMASTER 200 AC/DC
12-4 April 13, 2006
E94 error code
displayed
Temperature sensor
TH1 for IGBTs or
sensor TH2 for
secondary diodes
are open circuit.
A Main ON/OFF switch
on machine has
been turned OFF.
A Turn ON/OFF
switch ON.
B Mains supply
(input) voltage has
been turned OFF.
B Have an accredited
Thermal Arc Service
Agent or a qualified
electrician check the
Mains voltage
and fuses.
Have an accredited
Thermal Arc Service
Agent check or
replace the
temperature sensors. Weld current ceases.
Buzzer sounds
constantly. Switch
machine OFF.
14 Weld current ceases.
Buzzer sounds
constantly. Must
switch machine OFF
then ON to reset
E99 error.
13 The Welding Power
Source’s
temperature
sensors have
malfunctioned.
E99 error code
displayed
Mains supply
(input) voltage has
been turned OFF but
control circuit has
power from the
primary capacitors.
Table 12-1 (continued): Power Source Error Codes