Specifications

44 PROGRAMMING MANUAL 516307 C PUBLICATION DATE 31 JAN 2008.DOC
A skilled and experienced technician must examine the dryer system before the machine is put in operation
again.
DIAGNOSE:
1. Check if the air flow detection system is
still functional.
If the air flow detection system or it's switch is out of
order, it must be repaired or replaced.
2. Check if the ventilator is switched On
immediately after pressing start.
Check the contactor, wiring and the ventilator
command signal.
3. Check the continuity of the wiring If the wiring is not continuous, repair the wiring
4. Check that the ventilator is switched Off at
the end of the drying cycle.
If the contactor is not correctly functioning, replace
the contactor.
5. Check the input signal by monitoring the
state at the Service menu.
If the input is not functional anymore, replace the
electronic card.
 FAILURE 11: FAULT COOLDOWN
Failure 11 occurs when the temperature doesn’t decrease when the Cooldown sequence is in progress.
(No cooldown at all after 15 minutes at cooldown sequence for temperature above 50°C.)
(See 9.2 Monitoring Temperature values)
A skilled and experienced technician must examine the heating-and air outlet system before the machine
is put in operation again.
DIAGNOSE:
1. Check if the heating system is switched Off. If no temperature ramp has been programmed for the
cooldown sequence, the heating system must be
switched Off.
Check the contactor (valve), wiring, and the ventilator
command signal.
2. Check if the temperature sensor is
functional.
If the temperature sensor is not measuring correctly,
replace the temperature sensor.
3. Check the output relay that controls the
heating system.
If the output relay is not functional, replace the
electronic card.
 FAILURE 12: NO REHEATING
Failure 12 occurs at a heating (cooldown with ramp) sequence when the heating is not switched On again at
the temperature control process when the lowest temperature hysteresis value is reached.
(See 9.2 Monitoring Temperature values)
A skilled and experienced technician must examine the heating-and air outlet system before the machine
is put in operation again.
DIAGNOSE:
1. Check if there is no interruption of the
electrical power, gas or steam heating
power supply
The machine will not heat when there is no energy
supply for the heating system.
Avoid interruptions of the energy supply.
2. Check if the heating system is functional. If the heating system fails to work, repair or replace
the heating system.
3. Check the heating contactor (valve) If the heating contactor (valve) is not functional repair
or replace the component.
4. Check the continuity of the wiring. If the wiring is not continuous : repair the wiring
5. Check if the temperature sensor is
functional.
If the temperature sensor is not measuring correctly,
replace the temperature sensor.
6. Check the output relay that controls the
heating system.
If the output relay is not functional, replace the
electronic card.