Specifications

48 PROGRAMMING MANUAL 516307 C PUBLICATION DATE 31 JAN 2008.DOC
 FAILURE 23: IGNITION ERROR AFTER STARTUP (RUN), GAS HEATING ONLY
Failure 23 occurs when the heating system has a problem to switch on the fire when the dryer tries to
restart the gas heating system. (while the dry cycle is running).
If the problem is still persistent after 3 automatic resets, error message 23 is generated.
The dryer computer will try up to 9 times to turn on the gas heating.
The gas ignition system closes contactor KA3 (input 4 High) to inform the dryer computer that the gas
ignition system failed to switch on the fire.
Then the ignition system is reset by the dryer computer by switching on the reset signal gas ignition system
(contactor KA2))
A skilled and experienced technician must examine the heating- and air outlet system before the machine
is put in operation again.
DIAGNOSE:
1. Check the gas supply. Without gas supply, the heater can’t function.
Right Gas supply and pressure must be available.
2. Check the heating system. If the heating system is broken repair, replace the
heating system.
3. Check the gas ignition system. If the gas ignition system is not functional, replace
the gas ignition system.
4. Check the heating contactor. If a heating contactor is not functional replace the
component.
5. Check contactor KA3 (Ignition Error). If the contactor KA3 is not functional replace the
component.
6. Check the wiring. If the wiring is damaged, repair the wiring.
7. Check the output relays that controls the
heating system.
If an output relay is not functional, replace the
electronic card.
8. Check the electrical Input Ignition Error at
the electronic card.
If the input of the electronic card is not functional
anymore, replace the electronic card.
 FAILURE 24: IGNITION ERROR FAILURE, GAS HEATING ONLY
Failure 24 occurs after 3 attempts when the Gas Ignition system fails to be reset.
Cause : Input Signal Ignition Error Failure stays high (Input 4) nevertheless 3 attempts of dryer computer to
reset gas ignition system (contactor KA2). This is to be considered a major hardware failure.
A skilled and experienced technician must examine the heating- and air outlet system before the machine
is put in operation again.
DIAGNOSE:
1. Check the gas ignition system. If the gas ignition system is broken, replace the gas
ignition system.
2. Check the wiring. If the wiring is damaged, repair the wiring.
3. Check contactor KA3 (Ignition Error). If the contactor KA3 is not functional replace the
component.
4. Check the electrical Input Ignition Error at
the electronic card.
If the input of the electronic card is not functional
anymore, replace the electronic card.