Specifications

46 PROGRAMMING MANUAL 516307 C PUBLICATION DATE 31 JAN 2008.DOC
 FAILURE 17: COIN BLOCKING 2
Failure 17 occurs when the input for coin drop 2 is blocked for more then 5 seconds.
DIAGNOSE:
1. Check the well functioning of coin drop 2 If the coin drop micro contact or optocoupler is not
functioning 100%, replace the coin drop
2. Check the continuity of the wiring If the wiring is not continue: repair the wiring
 FAILURE 18: TOO HOT SAFETY
Failure 18 occurs when the actual heating temperature rises above safety temperature 85°C while the
machine is waiting to be started (not running).
On the display will be shown „Hot“ and the air temperature as indication that there is something wrong.
Check Safety Thermostats ST1 & ST2 as they should switch off the heating system and prevent high
temperatures.
(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.
ATTENTION
!!!
IF FAILURE 18 OCCURS WE CAN EXPECT THERE IS RISK OF BURN AND NECESSARY ACTIONS
MUST BE TAKEN TO REDUCE TEMPERATURE.
DIAGNOSE:
1. Check the air outlet system. If the air flow is not sufficient, adjust the air outlet
system.
2. Check the temperature sensor. If the temperature sensor is not measuring correctly,
replace the temperature sensor.
3. Check the heating system. If the heating system is broken, repair or replace the
heating system.
4. Check the heating contactor (valve) If the heating contactor (valve) is not functional repair
or replace the component.
5. Check the wiring. If the wiring is damaged, repair the wiring.
6. Check the Safety Thermostats ST1 & ST2. The Safety Thermostats should go open before
failure 18 is generated.
7. Check the output relay that controls the
heating system.
If the output relay is not functional, replace the
electronic card.
8. Check the input Signal by monitoring the
state at the Service menu.
If the input is not functional anymore, replace the
electronic card.
 FAILURE 19: DEFECTIVE TEMPERATURE SENSOR 1
Failure 19 occurs when the temperature sensor is broken. The fault is only displayed when the machine is
in standby mode and no program is active.
The fault can only be erased by switching off and on the power. If the fault is still present after switching on
the power : fault message 19 will be generated again.
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 temperature sensor is
connected on the PCB Board.
The Female connector must be connected with the
Male connector T1 of the PCB board.
2. Check the temperature sensor If the temperature sensor is broken: replace the
temperature sensor
3. Measure the resistance of the sensor If the resistance is not OK, replace the temperature
sensor
4. Check if the earth wire is at the middle If the earth wire is not at the middle position: put the
!