Troubleshooting - Hypertherm HyPrecision 100D Instruction Manual

10.3 Troubleshooting

The following troubleshooting chart lists symptoms, possible causes, and recommended solutions for
troubleshooting the HyPrecision 100D/150D Intensifier Pumps. If you have corrected the fault condition
and still receive a fault message, reset the pump by pressing the FAULT RESET button on the front
control panel. This will clear the fault and allow you to re-start the pump.
Fault Display Error Message
Hydraulic Oil Level Low
The oil level has dropped from a
leak at a fitting or from performing
maintenance on the hydraulic
assembly.
Cable may be damaged or connector
is unplugged.
Hydraulic Oil Temp > 130F (55C) or Hydraulic Oil Temp > 150F (65C)
Air/Oil Cooled Unit – Fan motor
starter tripped or off.
Water/Oil Cooled Unit - Inlet
cooling water to the pump not turned
on.
Water/Oil Cooled Unit - High
cooling water inlet temperature.
Water/Oil Cooled Unit - Cooling
water flow rate may not be high
enough.
Cable may be damaged or connector
is unplugged.
Heat exchanger could be clogged.
Inlet Water Pressure Below 40 psi (2.8 bar)
Inlet cutting water to the pump not
turned on.
The cutting water solenoid may be
shorted.
Intensifier Overstroke (pay attention to arrow direction)
The intensifier stroking too quickly
in one or both directions causes this
error. (There may be other possible
causes for this error).
Inspect the fittings and components of the hydraulic system for
leaks. After identifying the cause of lost oil, add oil per
instructions in the Hydraulic section of this manual.
Replace cable if damaged. Plug in connector if unplugged.
Turn dial to reset and back to run. Determine what caused the
overload to trip if tripped.
Turn on inlet cooling water. Read the Low-Pressure Water
section of this manual.
Test the temperature of the inlet water. If the temperature is
outside of the normal range outlined in the Specifications
section of this manual, you may need a water chiller.
Check the flow rate by monitoring the cooling water out. If the
flow rate is too low then adjust the water-modulating valve or
manual ball valve. See the Low-Pressure Water section of this
manual.
Replace cable if damaged. Plug in connector if unplugged.
Repair or replace heat exchanger.
Turn on inlet cutting water. Read the Low-Pressure Water
section of this manual.
If the coil or wire is damaged, replace it and restart the pump.
Note the direction of the intensifier over cycle and refer to
Intensifier Cycle in the High-Pressure Water section of this
manual.
65