Basic Troubleshooting - Hypertherm POWERMAX 800 Operator's Manual

M /P
AINTENANCE

BASIC TROUBLESHOOTING

LINE
VOLTAGE
POWER
ON
Problem
1. The ON/OFF power switch is set to I (ON),
but the fan does not operate and the POWER
ON LED is not illuminated.
2. The POWER ON LED is illuminated but the
GAS PRESSURE LED is not illuminated.
3. The POWER ON LED is illuminated, the
LINE VOLTAGE LED stays illuminated and the
torch is disabled.
5-8
9-96
ARTS
GAS
TEMP PRESSURE
Cause / Solution
1.1 The power cord is not plugged into the
power receptacle.
Plug in the power supply.
1.2 The disconnect power switch is not set to
ON or there is no power available to the
disconnect power switch box.
Turn the power ON at the main power panel
or at the disconnect power switch box.
1.3 A fuse is blown.
See Appendix A Changing Fuses .
2.1 The gas supply is turned OFF or not
connected to the power supply.
Verify that the gas is turned on and
connected to the power supply.
2.2 Gas pressure is too low.
Set gas supply pressure to 90 psi (6.2 bar).
Verify that there are no leaks in the gas
supply line.
3.1 Power supply voltage links are incorrect.
See voltage configuration settings in
Section 3.
3.2 Line voltage is too low.
The following table represents the operating
range of the Powermax800 power supplies.
Have an electrical technician check incoming
power.
ON/OFF
Power Switch
Operator Manual