Thermal Arc pro-life 250s, Operating Manual

Page: 49 / 62

12.0 POWER SOURCE ERROR CODES
Description
Possible
Ca
use
Remedy
Remarks
1
E01 error code displayed Tem
perature sensor TH1 (protects
IGBTs) is greater than 80ºC for about 1 second
A
B C
The W
elding Power
Source’s duty cycle has been exceed
ed.
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 Therm
al Arc Service Agent
investigate Unblock vents then let Power Source cool dow
n.
Weld curren
t ceases.
Buzzer sounds constantly. Fan operates at m
ax speed.
E01 resets w
hen TH1
decreases to 70ºC for abo
ut
30 seconds.
2
E02 error code displayed Tem
perature sensor TH2 (protects
secondary diodes) is greater than 80ºC for about 1 second
A
B C
The W
elding Power
Source’s duty cycle has been exceed
ed.
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 Therm
al Arc Service Agent
investigate Unblock vents then let Power Source cool dow
n.
Weld curren
t ceases.
Buzzer sounds constantly. Fan operates at m
ax speed.
E02 resets w
hen TH1
decreases to 70ºC for abo
ut
30 seconds.
3
E03 error code displayed Prim
ary (input) current too high
A
B
Prim
ary current is too high
because welding arc is too long. Mains supply voltage is more than 10% below nom
inal voltage
A B
Reduce length of welding arc. Have an Accredited Therm
al Arc Service Agent
or a qualified electrician check for lo
w Mains
voltage.
Weld curren
t ceases.
Buzzer sounds constantly. Switch m
achine off then on
to reset E03 error.
PRO-LITE 250S
49 June 29, 2005