Hypertherm Powermax30 XP Service Manual - Manual (Page 63)

Powermax30 XP Service Manual 808150 Revision 1 63
5 – Troubleshooting and System Tests
Troubleshooting guide
This guide provides the most probable causes and solutions. Study the Powermax30 XP schematic on page 201 and
understand the Theory of operation on page 55 before troubleshooting. Before purchasing any major replacement
component, verify the problem with Hypertherm Technical Service or the nearest Hypertherm repair facility listed in the
front of this manual. See
System tests on page 71 for detailed test procedures.
Problem This may mean Possible cause(s) Possible solution(s)
The power switch is set to
ON (I), but the power ON
LED is not illuminated. • 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.
• Verify that the electrical power
is connected to an
appropriately sized circuit.
• Verify that the system did not
trip the circuit breaker.
• Perform Test 1 – voltage input
on page 74.
The power ON LED and
the gas pressure LED
illuminate. • There is insufficient
gas pressure to the
system.
• The gas supply line is
not attached to the
system.
• The gas supply line has
a restriction.
• The air filter element is
dirty.
• The pressure switch is
not reading at least
2.8 bar (40 psi) on the
gas supply line.
• Attach the gas supply.
• Inspect the gas supply line for
restrictions or damage, and
repair or replace if necessary.
• Inspect the air filter element,
and replace if necessary. (See
Replacing the air filter bowl and
air filter element on page 148.)
• Perform Test 9 – pressure
switch on page 86.
The power ON LED and
the temperature LED
illuminate. • The system
overheated.
• The system is too
cold to operate.
• You have exceeded the
duty cycle. (See
Understand duty-cycle
limitations on
page 46.)
• The ambient
temperature is too low.
• Inspect the area around the
system to make sure that the
gas flow is not blocked.
• Let the system cool before
using it.
• Perform Test 8 – fan on
page 85.
• Let the system warm up before
using it.
AC
AC