Unitor UPC 1041, Instruction Manual

Page: 32 / 46

Revision date: 120813 Page 32 of 46
Check E3 Control & Ignition PCB.
Correct sequence:
Not active:
None off the leds are lit
Pre flow:
Press torch trigger, D17 lights up indicating post flow
Pilot arc:
After about 1sec D16 lights up indicating that the PWM PCB should start to send out pulses to
the primary PCB, and that the ignition pulses to the ignition transformer should start. Pilot arc
ignites.