Specifications

42 PROGRAMMING MANUAL 516307 C PUBLICATION DATE 31 JAN 2008.DOC
A skilled and experienced technician must examine the motor-drive system before the machine is put in
operation again.
DIAGNOSE:
1. Check if the thermal security of the motor is
open.
If the thermal security is open, within 15 minutes
the security will close automatically.
If a motor is defective, the security can go open
again when you restart the dryer.
If it was only a temperature problem and the motor
is not defective: the overload security will not trip
again.
2. Check that the air flow, drum and ventilator
rotation is not obstructed.
Solve the mechanical problem.
3. If the thermal motor security is not closing
after 15 minutes.
The thermal motor security will be probably
broken.
4. Check the continuity of the wiring. If the wiring is not continuous, repair the wiring.
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 7: DRUM MOTOR THERMIC
Failure 7 occurs when the motor temperature (overcurrent) security has tripped. The contact will be closed
again automatically after some time. (Failure 7 occurs only for 2 motor machines) (NC thermal contact)
A skilled and experienced technician must examine the motor-drive system before the machine is put in
operation again.
DIAGNOSE:
1. Check if the thermal security of the motor is
open.
If the thermal security is open, within 15 minutes
the security will close automatically.
If a motor is defective, the security can go open
again when you restart the dryer.
If it was only a temperature problem and the
motor is not defective: the overload security will not
trip again.
2. Check that the air flow, drum and ventilator
rotation is not obstructed.
Solve the mechanical problem.
3. If the thermal motor security is not closing
after 15 minutes.
The thermal motor security will be probably
broken.
4. Check the continuity of the wiring. If the wiring is not continuous, repair the wiring.
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 8: AIR FLOW SWITCH OPEN AT STARTUP
Failure 8 occurs when there is not sufficient air flow when the ventilator is switched On. This security
function prevents that the heating is switched On when the ventilator is not functional or if the airflow is
obstructed.
(Failure 8 occurs only at startup) (NO contact)
The Air Flow Switch has a safety function and it’s function must not be obstructed.
A skilled and experienced technician must examine the dryer system before the machine is put in operation again.
ATTENTION !!!
FOR NEW INSTALLATIONS THE AIR OUTLET TUBES MUST HAVE THE RIGHT
SIZE FOR THE AIR FLOW OF THE CORRESPONDING MACHINE.
FOLLOW THE INSTRUCTIONS IN THE INSTALLATION MANUAL.
!