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Alarm Message Cause Corrective Action Dryer Status
Make sure all the hose
connections inside the dryer
are tight.
Check the regeneration
heater fuses. Replace if
necessary.
Check the heater contactors.
Replace if necessary.
Check the heaters. Replace
if necessary.
REGEN LOW
TEMP
The regeneration
temperature did not
get within the alarm set
point.
Check incoming voltage to
the dryer specs.
- Dryer Normal :
- Process blower ON.
- Process heaters ON.
- Regen heaters ON.
- Alarm Message ON.
- Alarm horn is OFF.
Check the positioning of the
thermocouple inside the air
inlet of the drying hopper.
The tip of the thermocouple
should be centered to the
tube, and not touching any
metal part of the tube.
Make sure all the hose
connections are tight.
For drying temperature of
250°F or higher, delivery air
hose should be insulated.
Check the heater contactors.
Replace if necessary.
Check the heaters. Replace
if necessary.
PROCESS
LOOP BREAK
The process drying air
temperature has not
made any
improvement toward
the drying temperature
set point for more than
480 seconds.
Check incoming voltage to
the dryer specs.
- 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 all the hose
connections and all the
components of the dryer
have proper seals on them
(desiccant tanks, heater box,
filters, after-cooler … ).
Tighten the connections and
replace any damaged seals.
Make sure the regeneration
timing cycle matches the
specs. If not contact Service
department.
HIGH DEW
POINT
The dew point reading
has exceeded the dew
point alarm set point.
Desiccant may be
contaminated and blocking
the air flow. Check
desiccant, replace if
necessary.
- Dryer Normal :
- Process blower ON.
- Process heaters ON.
- Regen heaters ON.
- Alarm Message ON.
- Alarm horn is OFF.
Portable Drying/Conveying Systems Chapter 6: Troubleshooting 51 of 63