13
Donaldson Company, Inc.
Troubleshooting
Problem
Probable Cause
Remedy
Collector will not start
Improper motor wire size
Rewire using the correct wire gauge as specified by
national and local codes.
Not wired correctly
Check and correct motor wiring for supply voltage.
See motor manufacturer's wiring diagram. Follow
wiring diagram and the National Electric Code.
Unit not wired for available
voltage
Correct wiring for proper supply voltage.
Input circuit down
Check power supply to motor circuit on all leads.
Electrical supply circuit down
Check power supply circuit for proper voltage.
Check for fuse or circuit breaker fault. Replace as
necessary.
Fuse blown
Check and replace as necessary.
Junction box not wired correctly Check wiring in junction box for tightness and
contact.
Defective motor
Replace motor.
Collector runs slow
Incorrect voltage
Check power supply circuit for proper voltage.
Junction box not wired correctly Check that the junction box is wired according to the
wiring diagram.
Single phase disconnected
Check that the junction box is wired according to the
wiring diagram.
Obstruction between drum
and housing
Remove inlet cover. Remove obstruction.
Clean-air outlet
discharging mist
Disposable filter liner dirty
See Disposable Filter Liner Replacement section.
Undersized collector
Collector must be sized for the application. Contact
Donaldson for assistance.
Excess Vibration
Mounting bolts loose
Tighten bolts.
Foreign object in drum
Check and remove obstruction.
Disposable filter liner dirty
See Disposable Filter Liner Replacement section.
Drum assembly distorted
Rebalance drum assembly. Contact Donaldson for
assistance.
