ESAB PCM-875A - Power Light (PL1) Does Not Come on; No Air Flow

SECTION 6 PCM-875A Plasmarc System Troubleshooting
6-2
6.2 Troubleshooting guide for PCM-875A Plasmarc System
6.2.1 Power Light (PL1) does not come on
· Visually inspect the machine for damage.
· Check if the cooling fan is running. If not running,
check the following:
§ Check if machine input power is still connected.
§ Measure input power at the receptacle. If not
present, then check the wall disconnect switch and
it’s fuses.
§ Check fuse (F1). If it is:
§ Check input circuit breaker (CB1).
§ If cooling fan is running, measure voltage
between pins P2-11 and P2-14 of control board
(should be 115VAC). If no voltage, replace
transformer T2.
§ If voltage is present, power light may be burned
out.
The problem is internal if above items are ok. Send unit
to Authorized Repair Station.
6.2.2 No air flow
· Check air inlet supply. Unit requires 9,2
3
m/h at
4,48 bar.
· Check air hose and connections. Tighten if
leaking.
· Does air flow when “Air Test” switch is in test
position?
§ If not, check torch consumables, replace if
necessary.
If above items are OK, the problem is internal. Return to
authorized repair station for service.