Trouble Shooting And Error Messages - NovaTec NovaWheel NWB Series Instruction Manual

14.0 TROUBLE SHOOTING and ERROR MESSAGES

TROUBLE
1. Unit not running
2. Material in hopper
melts.
3. Reactivation
(regeneration)
temperature too
high.
4. Reactivation
(regeneration) heat
too low (Rotor not
fully reactivating.)
NWB & NWB-HC IM28 OCT 2014
PROBABLE REASON
Control main circuit
breaker tripped.
Main power off.
Control power
interrupted.
Process temperature
controller set too high
for material being
dried.
Temperature probe not
installed in process air
stream.
Process blower rotating
in wrong direction.
Temperature sensor
connection loose or
reversed.
Reactivation
temperature set too
High.
Reactivation
thermostat setting too
low
Reactivation
temperature controller
set too Low
Reactivation heaters
faulty.
Instruction Manual NWB & NWB-HC IM 28 OCT 2014
CORRECTIVE ACTION
Reset the breaker.
Check line and main.
Check per item as per electrical wiring
diagram.
Check set temperature for proper
drying process temperature.
Ensure temperature probe is installed
in the dryer outlet, or in the hopper
inlet.
Change blower rotation.
Correct the connection.
Check set-temperature on NWBDC
controller. it should be 380°F (190°C)
Adjust thermostat for proper
reactivation heat at around 380° F
(190°C)
Check set temperature on NWBDC
microprocessor controller. it should be
380° F. (190°C)
Replace heaters.
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