Hypertherm XPR170 User Manual

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 321
High coolant flow codes (543 – 544)
A failed coolant pump can cause a high coolant flow diagnostic code (543). To make sure that the
coolant pump is operational:
1. Look at the CNC or XPR web interface to make sure that the coolant pump is operational.
2. For diagnostic code 543, examine the coolant hoses. Make sure that you have
Hypertherm-supplied coolant hoses. Replace the bad hoses with Hypertherm-supplied coolant
hoses, if necessary.
3. For diagnostic code 544, do the following steps to re-set the cutting system:
a. Set the line-disconnect switch to the OFF position.
b. Examine the torch. Missing or severely damaged consumables can cause the flow meter to
give a higher flow value.

A missing water tube can have an effect on coolant flow.
c. Set the line-disconnect switch to the ON position.
d. Use the CNC or XPR web interface to send a process command to the cutting system.

The coolant pump starts automatically any time a process command is
sent.
e. If the code continues:
 Examine the flow meter. Look for air bubbles in the sight glass. Air bubbles can cause
the flow meter to give a higher flow value.
 Make sure the coolant level is slightly above the level switch.
 Examine the hoses and hose fittings. Look for damage or loose connections.
4. If you cannot find or resolve the problem with these corrective actions, contact your cutting
machine supplier or regional Hypertherm Technical Service team.
WARNING
ELECTRIC SHOCK CAN KILL
Disconnect electrical power before doing troubleshooting or diagnostic work.
All work requiring removal of the plasma power supply outer cover or panels
must be done by a qualified technician.
See the Safety and Compliance Manual (80669C) for more safety
information.

Hypertherm XPR170 Specifications

General

Brand	Hypertherm
Model	XPR170
Category	Welding System
Language	English