Hypertherm EcoSift, Operator'S Manual

Page: 124 / 188

Troubleshooting
Tr
oubleshooting
124 EcoSift Operator Manual 809500
The pressure shows on the sensor. The programmed range is between 0.06 bar (0.9 psi) and 0.14 bar (2.0 psi).
This fault occurs when the sensor senses that the pressure is out of range.
The EcoSift does not turn off normally. It could be necessary to clean out the wet abrasive before starting the
machine. Refer to
Uncontrolled shutdown
on page 118.
R
ECYCLE RATE
When the dryer box temperature is too high, the system compensates by sending less water and more abrasive to
the primary screen. This causes the temperature in the dryer box to decrease.
If the dryer box temperature is too low, the system compensates by sending more water and less abrasive to the
primary screen. This causes the temperature in the dryer box to increase.
Cause Solution
The sensor is not plugged in. Plug in the sensor.
The sensor is not receiving sufficient power.
Make sure that the sensor display lamp is on. This
shows that the sensor is receiving 24 VDC.
The cable is damaged. Replace the cable.
The sensor failed. Replace the sensor.
Cause Solution
There is not enough abrasive in the EcoSift hopper.
Add abrasive to the EcoSift hopper.
Make sure that the EcoSift hopper contains sufficient
abrasive to recycle.
A hose is clogged. Clean the hose. Refer to
Clean a hose
on page 129.
There is a blockage in the feed pump.
Disassemble the pump and look for blockages in the
air passages or debris that prevents the pump parts
from moving. Refer to
Repair a diaphragm pump
on
page 96.