Troubleshooting
116 810770 Operator Manual Echion
Faults
Fault conditions cause the pump to turn off.
Alarm Cause Solution
Fault 1: Hydraulic Fluid>65C
The hydraulic fluid temperature is
higher than65ºC(149ºF).
The system is not cooling
sufficiently.
Refer to Temperature on page 124.
Fault 1: Intensifier Overstroke to
Left
Fault 1: Intensifier Overstroke to
Right
An overstroke fault occurs when the
hydraulic piston travels faster than
the pump can sustain.
A poppet (high-pressure or
low-pressure) is stuck or is leaking.
Check the low-pressure poppet on
the same side as the overstroke.
Check the high-pressure poppet on
the opposite end from the
overstroke.
Refer to Overstroke on page 121.
Fault 1: Low Inlet Water Pressure The supply-water pressure is lower
than2.8bar(280kPa/40psi).
Increase the supply pressure.
Pressure is lost because of a leak. Identify the source of a leak and
correct the problem.
The supply water is off. Turn ON the supply water.
Fault 2: Hydraulic Fluid45C
Sensor
The temperature sensor in the
hydraulic fluid tank has failed.
Replace the sensor.
Fault 2: Hydraulic Fluid Level is
Low
The float switch in the hydraulic
fluid tank monitors the fluid level.
A hydraulic fitting or a hydraulic
hose is leaking.
Fix the leak.
Refer to Hydraulic fluid on
page 123.
The sensor is faulty. If the tank is full, replace the sensor.
A poppet (high-pressure or
low-pressure) is stuck or leaking.
Check the low-pressure poppet.
Fault 2: Input to Primary Motor
Not Received
The controller did not receive a
signal from the starter when the
pump was turned on.
Contact a Hypertherm Technical
Service Associate for information
and support.
Fault 2: Water Pressure Control
Error
The pump did not get to the target
water pressure within the expected
time.
• The hydraulic pressure
transducer on the pump
manifold has failed.
• The proportional valve has
failed.
• The proportional valve coil has
failed.
• The hydraulic pump has failed.
Replace the component.
The orifice has failed. Check the condition of the orifice.
Replace it, if necessary.
A component inside the hydraulic
center section has failed.
Contact a Hypertherm Technical
Service Associate for information
and support.