FKI GL 9000 Series, Руководство пользователя

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12
7.2.1.
Fault finding
Problem Cause / Possible solution
Display shows 1 Sensor on lower heat element is short circuited – Change the sensor
Display shows 2 Sensor on lower heat element is disconnected – Check connection
Display shows 3 Sensor on upper heat element is short circuited – Change the sensor
Display shows 4 Sensor on upper heat element is disconnected – Check connection
The are no light in the display
Make sure the power cord is plugged in and that any safety switch is
turned on and the main power switch on the back of the machine is ON.
Still no light in the display Check the fuse on the back of the machine
Still no light in the display
Check the power switch on the back of the machine if there is live volt-
age on all phases.
There is no light in one display
(other is OK) Check the power switch on the back of the machine if there is live volt-
age on all phases.
Still no light in one display
(other is OK)
Check the TRAFO for the PCB
Still no light in one display
(other is OK)
Check the fuse on the PCB
Still no light in one display
(other is OK)
Try to connect a new keypad, to check if it's the keyboard that is defec-
tive.
The plug must be installed correctly on the PCB, the shiny side must face the pan
Still no light in one display
(other is OK)
Try to connect a new PCB in order to check if the PCB is defective.
If you change the PCB it must be checked that the new PCB is programmed correctly
with Temperatures and times, check the operating instructions.
The pan(s) are not functioning
(open/close)
Check the ring trafo for actuators (motors).
The pan(s) are not functioning
(open/close)
Check rectifyer for actuators (motors).
One of the pans are still not
functioning (other is OK) Check wiring from PCB to actuator. (Meassuring 1 and 2 on the rear
terminal blocks must show 24V DC)
One of the pans are still not
functioning (other is OK)
Change actuator
There are no heat in one or
more heat elements Check solid state relay, to the heat element that is not heating up
There are no heat in one or
more heat elements
Check the heat element by measuring directly on the element
7.3. Repair
Authorized service personnel with knowledge of electrical appliances should always perform re-
pair.