Maintenance; The Test Program - Fagor Brandt HERAKLES LA3P 001UK-0306 Manual

MAINTENANCE

8 - MAINTENANCE

8.1. - The test program

This complete test program is used for checking all the dishwasher functions.
Displaying of faults during the test.: some fault codes may not appear during cycle. On the other
hand, they will be displayed, for the technician, during the TEST
During the test., the way in which one of the LEDs is used indicates the dishwasher status:
: LED flashing slowly (0.5" / 0.5")
: LED steady
: LED flashing rapidly (0.1" / 0.1")
•
Display with LCD or digits: codes displayed in clear on the LCD (E4 - E5) or the 3 digits (E2).
•
Display with LEDs: on the programming without display (E1), fault codes are indicated using
LEDs (vertical or horizontal depending on the strip aesthetics).
To know the fault number, you have just to add the binary weight of the LEDs illuminated.
The weight of a LED is the binary value that corresponds to its position: for example
FAULT "CODE"
LEDs Display
(E1) (E2 -E4 - E5)
Transition to next step by actuating " Start
those where it is necessary to wait for level or temperature servocontrol).
Checks possible during the test: The board stores thee latest test data, which allows opening the
door (level check) or disconnecting the appliance to check the defective circuit, replace the
defective part then connect the product and continue the test
Cancellation and exit from the test: a dishwasher de-energization or actuation of the" On/Off "
button does not cancel the current test
It is thus necessary to hold the " Start
Preliminary steps and conditions to enter the test
•
Remove the plinth and the front crosspiece to gain access to the aid-to-diagnostic leaflet
•
Remove the right-hand panel to see the emptying of the water reserve intended for the
regeneration
•
Use a clamp-on probe to check the power supply to heating element
•
Empty the appliance, open the tap and close the door of the dishwasher
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servocontrol reached or status correct (step "OK")
FUNCTIONS AND/OR ELEMENTS TO BE CHECKED
Filling >>> No High Level after 2' of supply to SV → Check SV and Level FBS
Draining >>> No Low Level after 30'' of draining → Check Pump and Level FBS
Heating >>> No heating → Check Heating tunnel and door Safety device
Thermistor (NTC) OOO or disconnected >>> Check its value (47 KΩ at 25°C)
Current consumed by the cycling pump too low >>> Pump cut or disconnected
Current consumed by the cycling pump too high >>> Pump blocked or OOO
Leak detection >>> Abnormal presence of water in the chassis bottom + float contact
Alternation valve fault >>> Micro-motor or position sensor OOO
Not used to date (Fault of the cycling pump pressure sensor)
Filling >>> High Level lost during the static filling → Draining pipe on floor
Overheating >>> T° read by the NTC too high → Heating relay closed or NTC OOO
Filling >>> Cycling pump current not stabilized → Wrong level or pump OOO
CU3P-CDC-003-02/05
LA3P-HERAKLES-001UK-0306
THE HERAKLES DISHWASHER
waiting for servocontrol (level, T° ...)
fault detected
Not used
" button. It is thus possible to skip steps (except
" button down for 2'' to exit the test
Technical Training
= 15