Electrolux EDW5505E Service Manual - Page 75

User Interface And Main Board Connectors

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Electrolux EFS - Dishwashing Systems Platform Electrolux Professional Electronic Dishwasher SERVICE MANUAL 12. USER INTERFACE AND MAIN BOARD CONNECTORS 12.1 MAIN MALFUNCTIONS NOT DUE TO THE MAIN BOARD The display shows CLOSEwith door/hood closed No cycle starts A cycle fails to start After replacing the main board only the 3rd cycle starts Cycle time longer than that foreseen Noisy wash pump (only on HT and PP versions) Check door/hood micro/sensor Check the user interface buttons (have they remained pressed? etc.) Is a user interface button extension missing? The main board is still configured for LS5/WT4. Does the boiler work? Is the feed water at 50°C? Check the current for single phase during operation. 12.2 CONNECTORS LAYOUT KEY CN1 CN2 CN3 CN5 CN8 CN10 CN11 CN12 CN15 CN16 Rinse pump/wash pump/solenoid valve outputs Pressure/atmospheric dishwasher solenoid valve connection ECOTEMP transformer and detergent/rinse aid dispenser outputs Tank/boiler temperature sensor inputs Energy peak controller input Safety and upper/lower limit switch input Gear unit current control input - Gear unit polarity inversion/connection User interface inputs/outputs Overflow/tank level/board feed input User interface inputs/outputs and hood/door sensor input DOC. NO. 5956.446.06 ©Copyright 2005 by Electrolux Professional P.75/88

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Electrolux
EFS – Dishwashing Systems Platform
Electrolux Professional
Electronic Dishwasher
SERVICE MANUAL
DOC. NO. 5956.446.06
©Copyright 2005 by
Electrolux Professional
P.75/88
12.
USER INTERFACE AND MAIN BOARD CONNECTORS
12.1
MAIN MALFUNCTIONS NOT DUE TO THE MAIN BOARD
The display shows
CLOSE
with door/hood closed
Check door/hood micro/sensor
No cycle starts
Check the user interface buttons (have they remained
pressed? etc.)
A cycle fails to start
Is a user interface button extension missing?
After replacing the main board only the 3
rd
cycle starts
The main board is still configured for LS5/WT4.
Cycle time longer than that foreseen
Does the boiler work?
Is the feed water at 50°C?
Noisy wash pump (only on HT and PP versions)
Check the current for single phase during operation.
12.2
CONNECTORS LAYOUT
KEY
CN1
Rinse pump/wash pump/solenoid valve outputs
CN2
Pressure/atmospheric dishwasher solenoid valve connection
CN3
ECOTEMP transformer and detergent/rinse aid dispenser outputs
CN5
Tank/boiler temperature sensor inputs
CN8
Energy peak controller input
CN10
Safety and upper/lower limit switch input
CN11
Gear unit current control input - Gear unit polarity inversion/connection
CN12
User interface inputs/outputs
CN15
Overflow/tank level/board feed input
CN16
User interface inputs/outputs and hood/door sensor input