Hypertherm Powermax30 AIR Service Manual - Manual (Page 66)

66 Powermax30 AIR Service Manual 808850
5 – Troubleshooting and System Tests
Internal compressor LED faults
 The internal compressor LED never illuminates by itself. It always illuminates with the
temperature LED.
The internal compressor LED and the temperature LED illuminate while
the machine is powered ON and the torch trigger is pulled.
Possible causes Possible solutions
 The internal compressor overheated and
turned off. You may have exceeded the duty
cycle for the system. See
Understand
duty-cycle limitations on page 48.
1. Allow the power supply to cool for
4 minutes. Leave the system on to allow
the fan to cool the power supply. Then try
to produce an arc by pulling the torch
trigger.
When the internal compressor overheats,
the compressor turns off, and the
compressor and temperature LEDs remain
illuminated for 4 minutes.
The system does not prevent you from firing
the torch before the 4 minutes elapses.
However, if you begin cutting before the
compressor has time to fully cool down, the
same fault is likely to occur again.
If the fault LEDs persist, continue with the
following troubleshooting steps in the
order listed.
 Environmental conditions or worn
consumables are adversely affecting the
power supply’s performance. 2. Make sure the louvers in the cover are not
blocked. Blocking the louvers in the cover can
prevent proper air circulation needed to cool
internal components.
3. Place the power supply right-side up on a level
surface. Do NOT lay the power supply on its
side. Laying the power supply on its side can
cause the air filter to divert air away from the
torch.
4. Inspect and replace the consumables if they are
worn or damaged. Always replace the nozzle
and electrode together.
5. Was the system stored in temperatures below
freezing? If so, ice might have formed in the
air-flow system inside the power supply. Move
the power supply to a warmer location to allow
the ice to melt.