Nordson iDry Series Customer Product Manual page 82

76 Nordson iDry® Series Induction Dryers
Problem
1. Dryer will not turn
on when POWER
button is pressed
2. Can ends not
heating, RUN MODE
or RAMP MODE ON
3. Can ends not
heating, MOTION
LED off
4. Actual temperature
reading erratic, over
or under setpoint
5. COILTRAY LID
OPEN fault
6. AIR HEATER FAIL
fault or air heater
not heating air
flowing into coil
tube
7. COOLING AIR FAIL
fault
8. Temperature
overshoots on
startup
9. System stays in
Ramp Mode (Never
switches to Run
Mode ON)
10. INVERTER OVER
TEMP fault
1075452-05
Possible Cause
Main disconnect off
Coil tray lid or control
enclosure doors open
EMERGENCY STOP
switch pushed in
Fuses F1A, 1B, or 1C
open
Fuses F1A, 1B, or 1C
open
Motion sensor lens dirty
Motion sensor not
calibrated
Thermocouple worn or
defective
Coil tray lid or control
enclosure doors open
Fuses 5A and 5B, 6A
and 6B, 7A and 7B open
Broken heater element
or thermal one-shot
opened
Heater housing
thermostat open
Obstructed or dirty air
filter
Fuse F8 open
Rear access panel loose
or removed
Incorrect ramp mode
power level adjustment
Motion timer set too
short to compensate for
line jogging and surges
or ramp timer set too
long
Rear access panel loose
or removed
Obstructed or dirty air
filter
Obstructed air flow under
dryer
Corrective Action
Turn main disconnect switch to ON position.
Close and lock lid and doors. Adjust door interlock switch.
Pull switch out to release.
Check the fuse indicators: if black replace the fuses. With power
disconnected and locked out at an external breaker or disconnect
switch, test the fuses and check for loose connections.
Check the fuse indicators: if black replace the fuses. With power
disconnected and locked out at an external breaker or disconnect
switch, test the fuses and check for loose connections.
Clean lens with a clean, soft cloth.
Perform the Laser Motion Sensor Sensitivity Adjustment
procedure.
Replace the thermocouple. Refer to Thermocouple Replacement
in the Repair section.
Close and lock lid and doors. Adjust door interlock switch.
Test fuses, replace if blown.
NOTE:
Fuses are application specific, some systems do not
require fuses 6 and 7.
Replace heater.
Shut down system. Heater will auto-reset on cool down. Check air
filter to ensure air flow is not reduced by dirty filters.
Remove any obstructions that might impede air flow, replace filter
if dirty.
Test fuse, replace if blown.
Install access panel properly.
Adjust setting (Ramp Mode Power Level Adjustment).
Increase motion timer setting (Motion Timer Setting) or decrease
ramp timer setting (Ramp Timer Setting).
Install access panel properly.
Remove any obstructions that might impede air flow, replace filter
if dirty.
Remove any obstructions that might impede air flow.
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