Hypertherm Powermax30 Service Manual - Manual (Page 48)

MAINTENANCE
powermax30
Service Manual 3-9
Troubleshooting guide
See System tests, later in this section, for detailed test procedures.
Problem This may mean Cause Solution
The ON/OFF power
switch is set to ON (I), but
the power ON LED does
not illuminate. There is insufficient
voltage to the control
circuits or a short-circuited
power component.
• The system has no
incoming voltage or an
improper incoming
voltage.
• The power board is
faulty.
• Check to see that the
system is plugged into
an appropriately-sized
circuit and that the
circuit breaker has not
been tripped.
• Perform test 1 to check
the incoming voltage
and the power switch.
The power ON LED and
the gas pressure LED
illuminate.
There is insufficient gas
pressure to the machine.
• There is no gas
attached to the system.
• The gas supply line has
a restriction or the air
filter element is dirty.
• The pressure switch is
not reading at least
40 psi (2.8 bar) on the
gas supply line.
• Ensure that the gas
supply is connected
correctly.
• Check the gas supply
line for restrictions or
damage.
• Check the air filter
element and replace it if
necessary.
• Perform test 9 to verify
that the pressure switch
functions correctly.
The power ON LED and
the temperature LED
illuminate.
The system has
overheated.
• You have exceeded the
duty cycle. (For more
information about duty
cycle, see
Section 4 of
the Powermax30
Operator Manual.
• Check the area around
the system to make sure
that the air flow is not
blocked.
• If the duty cycle has
been exceeded, let the
system cool before
using it again.
• Perform test 8 to make
sure the fan is operating
correctly.
The power ON LED
flashes.
The incoming voltage is
not correct.
• The incoming voltage is
below 90 VAC or above
285 VAC.
• Perform test 1 to check
the incoming line
voltage.
AC AC
AC AC
AC AC