18
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.
Power supply circuit
Check power supply to motor circuit on all leads.
Power supply circuit down
Check power supply circuit for proper voltage.
Check for fuse or circuit breaker fault. Replace as
necessary.
Damaged motor
Replace damaged motor.
Partial loss of suction
Filters plugged
Check that the dust container is not full. Turn fan OFF
and allow the controller to perform several complete
cleaning cycles. Replace filter bags.
Motor speed low
Check all supply voltage, phase, and motor
connections.
Fan rotation backward
Check and correct. See Preliminary Start-Up.
Total loss of suction
Blower motor stopped
Check motor starter overloads, fuses, and interlocks.
Check motor connections.
Filters plugged
Check that the dust container is not full. Turn fan OFF
and allow the controller to perform several complete
cleaning cycles. Replace filter bags.
Obstructed ductwork
Check and remove obstructions.
Clean-air outlet
discharging dust
Filters not installed correctly
See Filter Installation.
Filter damage, dents in the end
caps, gasket damage, or holes
in media
Replace filters as necessary. Use only genuine
Pakzy replacement parts. See Filter Installation.
Troubleshooting
PZ Series 150-250-500-1000 Shaker Cleaner
