Hypertherm Powermax105 Service Manual - Manual (Page 165)

TroubleshooTing and sysTem TesTs
powermax
105 Service Manual 8-27
Fault
code
Description Power
lED
Fault
lED
Fault
icon
Solutions
0-21-0 Gas flow lost while cutting
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.
• Ensure air flows through the electronic
regulator in gas test mode. Replace the
regulator if necessary.
• Possible faulty DSP or power board.
0-22-0 No gas input
On On
• Restore the gas supply.
• Restart the power supply.
With proper air connected, measure the
resistance between J5 pins 1 & 2.
• If short, replace the power board.
• If open, check the cable harness between
J5 and the pressure switch. If the harness
is good, replace the pressure switch (kit
228688).
• Perform Test 10.
0-30-0 Torch stuck open
The nozzle and electrode are
not touching after a start is
received.
On On
• If incorrect consumables are installed or
the consumables became loose or were
removed while the power supply is ON, turn
OFF the power supply, correct the problem
and then turn ON the power supply to clear
this fault.
• Inspect the torch for signs of wet or oily air.
• Inspect the torch for any signs of damage or
pitting on the electrode contact surface.
• If the consumables appear to be installed
correctly, the torch may be damaged. Test
with a known working torch.
• Perform Test 6.
• If the problem persists, contact your
Hypertherm distributor or authorized repair
facility.
0-30-1 Torch stuck closed
• The nozzle and electrode
will not separate after a
start is received.
• The regulator may not be
functioning properly.