Nordson Encore XL Powder, Manual

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© 2021 Nordson Corporation
1607027-01
7-4 Troubleshooting
Problem Possible Cause Corrective Action
7. Powder buildup on
sieve screen
Screen not cleaned
frequently enough
Clean the sieve mesh at more frequent intervals. Upgrade to
Vibrasonic sieve screen if necessary.
Screen mesh size too
small for powder being
used
Use a sieve screen with a larger mesh size. Upgrade to
Vibrasonic sieve screen if necessary.
8. Excessive sieve
noise
Sieve deck or discharge
pan not secure
Tighten the clamps securing the sieve deck.
Knobs or clamps not
tightened; vibration
isolators loose or
damaged; screen gasket
damaged
Make sure the clamps are tight. Check the isolators for looseness
or damage. Tighten the isolator mounting screws. Check the
screen gasket and replace it if damaged.
9. Contaminants in
feed hopper powder
Sieve screen torn Replace the screen.
Sieve screen not
thoroughly cleaned
before installation
Remove and clean the sieve screen.
10. Reclaim or virgin
transfer pump
turned on, but pump
does not run
E-Stop button pressed Reset the E-Stop button.
Exhaust fan not running,
or fan interlock circuit
defective
Turn on the exhaust fan. Check the fan interlock wiring at the
feed center panel.
Sieve motor not running
During normal operation, the reclaim and virgin pumps will not
run unless the sieve is on. Turn on the sieve.
Reclaim or Virgin switch
or wiring is defective
Check the switch and wiring. Repair or replace as needed.
Reclaim or Virgin circuits
disabled
Circuits are disabled if the switches are in the On position when
feed center power is turned on, or when the Color Change Stop
button is pressed.
To reset the circuits, turn the Reclaim or Virgin switch Off then
On.
No air supply to control
manifold, or solenoid
valve not opening
(reclaim SOL 336, virgin
SOL 338)
Check the air supply to the control manifold on the roof of the
feed center. Check for air output from solenoid valve. Check the
control manifold cable wiring. Repair or replace as needed.
Problem with transfer
pump controls or pump
Check the pump and controls. Refer to High Capacity HDLV
pump with electric timing valve manual 1619979 and Pump
Station manual 1620734.
Level sensor failed or
wiring defective
Check the level sensor and wiring. Repair or replace as needed.
Continued...