Hypertherm Powermax190c Operator Manual - Manual (Page 42)

MAINTENANCE/PARTS
2
powermax
190c Operator Manual 5-3
Basic Troubleshooting
1.1 Clean or replace worn consumables as
necessary.
1.2 Check for proper installation of swirl ring.
1.3 Check for proper input voltage. Check
that the power cord/extension cord is not
under size per Section 3.
1.4 Check that the work clamp is connected
to the workpiece.
1.5 Be certain that the torch tip is in close
contact with the workpiece. The pilot arc
will extinguish after 5 seconds if arc
transfer is not established.
1. No pilot arc; difficulty in establishing an
arc, difficulty in achieving arc transfer.
2.1 Place the Power switch to On (I)
2.2 Plug in the power cord.
2.3 Check line disconnect fuses and replace if
needed or reset circuit breakers.
2. No cutting output; POWER ON LED
extinguished, FAULT LED extinguished;
fan not running
3.1 Check that the work clamp is connected.
3.2 Clean or replace worn consumables as
necessary.
3.3 Over-heated compressor see Solution 4.2.
3. No cutting output; POWER ON illuminated;
FAULT LED extinguished; fan running
4.1 Check that all torch consumable parts are
in place and that the retaining cap is tight.
In this fault condition, the power supply
must be turned off and then turned on
before operation can begin.
4.2 Thermostat in power supply may be open
(overheating). Allow the fan to run; the
thermostat closes when the unit has
cooled (see Section 4, Duty Cycle and
Overheating).
4.3 Input voltage not within specification (120
VAC +/- 20% or 230 VAC +/- 20%). In this
fault condition, the power supply must be
turned off and then turned on before
operation can begin.
4.4 Refer to Service Manual IM-366 (803660)
for more detailed troubleshooting.
4. FAULT LED illuminated
Problem Solution