Donaldson Torit Checker board Installation, Operation, Service And Replacement Part Information page 24

Donaldson Company, Inc.
Troubleshooting, continued
Problem
Filter Rupture fault light
on diplay panel ON
Filter Plugged fault light
on display panel ON
Temperature fault light
on display panel ON
Service Interval fault light
on display panel ON
Blower Overcurrent fault
light on display panel ON
24
Probable Cause
Collapsed or ruptured
filter cartridge
Airflow control
damper closed rapidly
Motor failure
Filter cartridge needs
replacement
Low compressed air
pressure
Setpoint adjustment is
incorrect
Incoming air
temperature exceeds
the rating of the filter
cartridge
Fire
Short circuit
Water in thermowell
Timer function time
elapsed
External device
function
Faulty motor
Airflow exceeds the
rated flow
Lack of proper flow
restriction device or
access from ambient to
clean- or dirty-air
chamber open.
Remedy
Check for visible dust in the discharge airstream.
Replace filters as necessary.
Reset damper settings.
Check fuses and circuit breakers. Replace or reset as
needed. Reset motor.
Replace filter cartridges as a complete set.
Supply 90 to 100 psi compressed air to units
manifold.
Set the START CLEAN setpoint above the normal
differential pressure.
Replace existing cartridges with cartridges having a
higher temperature rating. Contact your Donaldson
Torit representative to reset the fault indicator
setpoint.
Extinguish fire and replace cartridges as required.
Eliminate all sources of ignition before restarting the
unit.
Check twisted pair wire. Replace if damaged.
Replace thermowell assembly.
To reset the indicator light, press the OFF button,
perform the service, press the Service Interval Light
Reset button, and return to service.
Perform service indicated by the external device and
reset as above.
Repair or replace as required.
Adjust inlet or outlet dampers.
Close hopper discharge or other openings. Do not
operate unit without inlet duct in place.