Teka DW7 41 FI Manual de usuario
Service Manual
MSDW15070
Models:
DW7 57 FI
DW7 41 FI
LPI 759
Contents
1. Introduction.......................................................................................................... - 1 -
2. Control Panel ........................................................................................................ - 1 -
3. Service Test........................................................................................................... - 1 -
4. Error codes............................................................................................................ - 2 -
5. Wiring diagram ..................................................................................................... - 4 -
6. Water circuit scheme............................................................................................ - 5 -
7. Electrical components .......................................................................................... - 5 -
Service Manual
DW7 57 FI –DW7 41 FI –LPI 759
Service Manual: MSDW15070 - 1 -
1. Introduction
This document explains how to perform the Service Test for the related Dishwasher.
2. Control Panel
1.ON/OFF button
5.Salt and rinse aid warning light
2.Power on light
6.Program button
3.Delayed start button
7.Program indicator light
4.Display
3. Service Test
To activate test program, with the door opened and machine off, hold down the
Program button and press the POWER button until the machine enter into Test
Program. The appliance will pause and stand by(as step 00). Then close the door to
start the Test Program.
During test program running you can press Program button to jump into next step
(except inlet valve step).
No.
Proceso
Display
Estado
0
Initialization
88
Power on, stand by
1
Inlet valve
0A
Open inlet valve and feeds with 3.6L wáter (3.0L
in 45 cm models)
2
Washing pump
and dispenser
09
Dispenser will act once and washing pump will
run for 60 sec. in this step
3
Heating element
08
Run washing pump and heating element until the
water temperatura reaches 57ºC. Then the
machine will pause
Press Program button to jump into the next
step
4
Drain pump
07
Drain for 30 sec.
Service Manual
DW7 57 FI –DW7 41 FI –LPI 759
Service Manual: MSDW15070 - 2 -
5
Pause
06
Pause for 10 secs.
6
Inlet valve
99
Open inlet valve and feeds with 3.6L (3.0 in
45cm. models)
7
Washing pump
04
Run washing pump for 2 mins.
8
Pause
03
Pause for 5 secs.
9
Washing pump
and half load valve
02
Run washing pump for 1 min. If model is
equipped with half load valve, it would be
working during this step
10
Drain pump and
regeneration valve
01
Open regeneration valve and drain for 30 secs.
11
Finish
F1
Buzz one sound, stop, and stand by.
4. Error codes
E1 Water filling exceeds pre-set time.
If the inlet valve has been opened for 4 minutes but the water quantity hasn’t reached
the desired value (measure by pulses).
When E1 occurs, the drain pump will run until flowmeter keep motionless for 2
minutes and all the other components will be stopped immediately.
At the same time, the buzzer will sound for 30 seconds and E1 will be shown.
E3 Heating exceeds pre-set time.
If the heating element has been working for 60 minutes but the water temperature
detected by NTC hasn’t reached desired value.
When E3 occurs, the drain pump will run until flowmeter keep motionless for 2
minutes and all the other components will be stopped immediately.
At the same time, the buzzer will sound for 30 seconds and the eE3 will be shown.
E4 Overflow
At any time, if overflow micro-switch act and keep for longer than 2 seconds, the E4
error will appear.
When E4 occurs, the drain pump will run until flowmeter keep motionless for 2
minutes and all the other components will be stopped immediately.
Service Manual
DW7 57 FI –DW7 41 FI –LPI 759
Service Manual: MSDW15070 - 3 -
At the same time, the buzzer will sound for 30 seconds and error 4 will be shown.
Note: Priority level of E4 is the highest. E4 operation is valid after other error
operations. When E4 operation has done, all the others are invalid.
E6 Open-circuit failure of NTC Sensor
In test program, once open-circuit failure of NTC sensor is detected by controller, the
E6 will appear.
When E6 occurs, the drain pump will run until flowmeter keep motionless for 2
minutes and all the other components will be stopped immediately.
At the same time, the buzzer will sound for 30 seconds and error 6 will be shown.
E7 Short-circuit failure of NTC sensor
In test program, once short-circuit failure of NTC sensor is detected by controller, the
E7 will appear. When E7 occurs, the drain pump will run until flowmeter keep
motionless for 2 minutes and all the other components will be stopped immediately.
At the same time, the buzzer will sound for 30 seconds and error 7 will be shown.
Service Manual
DW7 57 FI –DW7 41 FI –LPI 759
Service Manual: MSDW15070 - 4 -
5. Wiring diagram
Service Manual
DW7 57 FI –DW7 41 FI –LPI 759
Service Manual: MSDW15070 - 5 -
6. Water circuit scheme
7. Electrical components
Inlet valve
Voltage = 220 –240 V
Resistance = 3.4 –4.3 KΩ
NTC sensor
Service Manual
DW7 57 FI –DW7 41 FI –LPI 759
Service Manual: MSDW15070 - 6 -
Flowmeter
Using a multi-meter in Diode testing mode, there should be
electrical pulses sent out while water is passing through the
flowmeter.
Washing pump
Voltage = 220 –240 V
Resistance = 131.4 Ω(±10%)
Capacitor = 3µF
Drain pump
Voltage = 220 –240 V
Resistance = 150 –220 Ω
Heater
Voltage = 230 V
Power = 1800 W
Resistance = 29.3 Ω ± 1.47 Ω
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1
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