Specifications

Portable Drying/Conveying Systems Chapter 6: Troubleshooting 62 of 76
Alarm Message Cause Corrective Action Dryer Status
Make sure the process air filter
is clean. Clean or replace if
necessary.
The process blower
pressure switch did
not detect enough
pressure.
Process blower
overload has tripped.
Check the pressure switch
hose connection. Replace
hoses or the pressure switch.
Process blower
motor has failed.
Check the over load rating
against the wiring diagram.
Adjust accordingly.
Check the wiring of the blower.
Make sure it is wired for the
proper voltage.
Check the process blower
fuses for any fault. Replace if
necessary.
Check the blower motor
starter. Replace if necessary.
Check the blower motor.
Replace if necessary.
PROCESS
BLOWER FAIL
Check the incoming voltage
against the name plate of the
dryer.
- Dryer Shuts Down :
- Process blower OFF.
- Process heaters OFF.
- Regen heaters OFF.
- Alarm Message ON.
- Alarm horn is ON.
Check the heater fuses,
replace if necessary.
Make sure the wiring is correct
and wire connections are tight.
PROCESS
HEATER FAIL
The process heater
safety contactor is
not responding.
Check the process heater
safety contactor. Replace if
necessary.
- Dryer Shuts Down :
- Process blower OFF.
- Process heaters OFF.
- Regen heaters OFF.
- Alarm Message ON.
- Alarm horn is ON.
Make sure the process air filter
is clean. Clean or replace if
necessary
Make sure the filter housing is
installed correctly, and the
connections are tight.
Check the hoses to the filter
pressure differential switch is
connected correctly, are not
damaged, and all the
connections are tight. Replace
the hoses if necessary.
DIRTY FILTER
The filter pressure
differential switch
has tripped.
Check the wiring connections
to filter pressure differential
switch against the print.
Tighten the connections.
- Dryer Normal :
- Process blower ON.
- Process heaters ON.
- Regen heaters ON.
- Alarm Message ON.
- Alarm horn is OFF.