Problem
Setback RTD Integrity - The
control can not sense the
setback RTD.
Wheel Rotation Failure - The
regeneration temperature
differential has been reached.
Regeneration Outlet RTD
Integrity - The control can not
sense the regeneration outlet
RTD.
Possible cause
The connection in the electrical enclosure
for the hopper RTD is loose.
The connection of the RTD plug on the
control board is loose.
The setback RTD has failed.
The control board has failed.
The wheel motor is not turning.
The belt tensioner is loose or the belt is
slipping.
The regeneration heater is not working.
There is a loose connection in the
wiring leading to the RTD.
The connection of the RTD plug on the
control board is loose.
The regeneration outlet RTD has failed.
The control board has failed.
Solution
Check the RTD plug connection and
tighten if needed.
Check the plug connection and tighten if
needed.
Replace the setback RTD.
Replace the control board.
Check the motor, plugs, and fuses.
Change the tensioner spring or replace
the belt.
Check the heater fuses and heater.
Check the RTD plug connections and
make any necessary repairs.
Check the plug connection and tighten
if needed.
Replace the regeneration outlet RTD.
Replace the control board.
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 when 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 Shutdown Alarms
section). See page 4-25, screen 62 for instructions.
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6-16 l Tr ou bl es ho ot in g
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