6-18 l Troubleshooting
Problem
Conveying Blower Overload
– The conveying blower over-
load has tripped due to a
mechanical or electrical prob-
lem.
Possible cause
The conveying blower has mechanically
failed or is unable to rotate freely.
The conveying blower has failed electri-
cally.
The overload is set incorrectly.
The conveying blower current draw has
exceeded the full load amps of the motor.
The overload is defective.
Solution
Disconnect and lock out main power.
Check the conveying blower for mechan-
ical failure and free rotation. Replace if
necessary. Allow the overload to reset
automatically then try to restart the con-
veying blower.
Disconnect and lock out main power.
Check the conveying blower for electri-
cal shorts or open circuits. Replace if
necessary. Allow the overload to reset
automatically then try to restart the con-
veying blower.
Disconnect and lock out main power.
Check the overload settings and confirm
that the settings match the full load amps
listed on the conveying blower motor.
Allow the overload to reset automatically
then try to restart the conveying blower.
Press alarm acknowledge and allow the
overload to reset automatically then try to
restart the conveying blower. If the
alarm condition occurs again, have a
qualified electrician check the current
draw to the motor.
Replace the overload.
✐
NOTE: Once the overload
has tripped, you must wait 2
to 15 minutes with the
power on for the overload to
reset automatically.
Passive Alarms
If the amber Acknowledge Alarm LED is blinking, the alarm is a passive alarm.
The dryer continues to operate, but this problem could prevent correct drying of
your material. Note that once the Acknowledge Alarm button is pressed once, the
blinking amber LED becomes solid.
NOTE: Passive alarms can be configured as shutdown alarms (see the previous Shut-
down Alarms section). See page 4-26, screen 62 for instructions.
✐
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