Hypertherm Powermax65 Service Manual Rev.1 - Manual (Page 150)

TroubleshooTing and sysTem TesTs
5-24
powermax
65/85 Service Manual
Fault
code
Description
(System test number)
Power
LED
Fault
LED
Fault
icon
Solutions
0-19-9 Power board hardware
protection. One or more major
power board hardware faults
(or electrical noise) detected:
Warning.
Fault 0-19-9 can occur three
(3) times before becoming a
0-99 fault.
On On
The inverter shuts down and does not fire
again for several seconds. If the fault is
caused by electrical noise, the fault clears
in a few seconds and the machine operates
normally.
If a true fault continues to occur, the 0-99
fault code appears on the operator screen.
Access the fault log in the service screen to
identify the major fault.
0-20-0 Low gas pressure (Test 10)
The gas pressure has fallen
below the minimum pressure for
that process, mode, and lead
length.
On On
Ensure the gas line is properly installed.
Replace the air filter element if dirty.
Replace the gas supply line if restricted.
Ensure the inlet pressure is 85 to 135 PSI
(5.9 to 9.3 bar).
0-21-0 Gas flow lost while cutting
(Test 9)
On On
The DSP monitors the nozzle to electrode
voltage and if it detects a rapid change
in that voltage, the inverter shuts down.
Usually this indicates a rapid loss of gas
pressure from a kinked or blocked air
supply line.
• Correct any gas supply restrictions and
restart the power supply.
• Check the torch lead for leaks or kinking.
0-22-0 No gas input
On On
• Restore the gas supply.
• Restart the power supply.