WSO Mist Collector, WSO M
20
Problem
Probable Cause
Remedy
Fan blower and motor do
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.
Overload relay tripped
Reset. Check amp draw on motor leads.
Defective overload heater or
overload assembly
Replace as necessary.
Fan blower and motor
start, but do not stay
running
Incorrect motor starter heater
elements installed
Check for proper heater elements and replace if
necessary.
Access doors are open or not
closed tight
Close and tighten access doors.
Electrical circuit overload
Check that the power supply circuit has sufficient
power to run all equipment.
Clean-air outlet
discharging oil mist
Filters not installed correctly
See Filter Removal and Installation.
Filter damage, dents in the end
caps, gasket damage, or holes
in media
Replace filters as necessary. Use only genuine
Donaldson replacement parts. See Filter Removal
and Installation.
Access cover(s) loose
Tighten access doors securely. See Filter Installation.
Insufficient airflow
Fan rotation backwards
Proper fan rotation is clockwise from the top of the
unit. The fan can be viewed through the back of the
motor. See Preliminary Start-Up Check.
Access doors open or not
closed tight
Check that all access doors are in place and
secured. Check that the hopper discharge opening is
sealed and that dust container is installed correctly.
Fan exhaust area restricted
Check fan exhaust area for obstructions. Remove
material or debris.
First Stage filter plugged
Remove and clean or replace.
Primary filter needs
replacement
Remove and replace. Use only genuine Donaldson
replacement parts. See Primary Filter.
Plugged HEPA or 95% DOP final
filter
Remove and replace.
Troubleshooting
