Teka LP2 140 User manual

Service Manual
MSDW16012
(updated 28/04/2020)
Models:
LP2 140
LP8 850 (VR02/VR03)
DW1 455 FI (VR01/VR02)
LP8 400
LPM 819
DW8 40 FI
LP8 410
LPZ 417
DW8 41 FI
LP8 700
LPZ 817 BL/INOX
DW8 55 FI
LP8 810
LVS 831 BL/INOX
DW8 57 FI
LP8 818
DW 605 S (VR01/VR02)
DW8 58 FI
LP8 820
DW 455 S (VR01)
DW8 70 FI
LP 825
DW1 605 FI (VR01/VR02)
DW9 70 FI
LP8 840 (VR01/VR02)
DWM 859 FI
LP8 440 (VR01/VR02)
DWZ 57 FI
LP9 850
LP9 840
LP9 440

Service Manual
Service Manual: MSDW16012 - 1 -
Contents
1. General description. ............................................................................................. - 2 -
2. Hydraulic diagram................................................................................................. - 3 -
3. Wiring Diagram..................................................................................................... - 4 -
4. Service Test........................................................................................................... - 5 -
5. Error messages ..................................................................................................... - 6 -
6. Main components................................................................................................. - 8 -
7. LP8 700 / LP8 400 ................................................................................................. - 9 -
8. LP8 810 / LP8 818 / LP8 410 / LPM 819/ LPZ 417 / LVS 831 / LPZ 817 .............. - 10 -
9. LP8 820 / LP8 825 ............................................................................................... - 11 -
10. LP8 840 (VR01 / VR02) / LP8 440 (VR01 / VR02) ............................................ - 12 -
11. LP8 850 (VR02 / VR03)..................................................................................... - 13 -
12. LP2 140 ............................................................................................................ - 14 -
13. DW8 55 FI / DW8 40 FI/ DWM 859 FI / DWZ 57 FI.......................................... - 15 -
14. DW8 57 FI / DW8 58 FI/ DW8 41 FI ................................................................. - 16 -
15. DW8 70 FI ........................................................................................................ - 17 -
16. DW1 605 FI / DW1 455 FI (VR01/VR02)....................................................... - 19 -
17. DW 605 S (VR01/VR02) / DW 455 S (VR01)..................................................... - 20 -
18. LP9 850 / LP9 840 / LP9 440 ............................................................................ - 21 -

Service Manual
Service Manual: MSDW16012 - 2 -
1. General description.
This document contains the technical information for the related models (wiring
diagrams, main components features, etc.), meaning of error messages, how they are
shown and how to perform a service test and their phases.

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Service Manual: MSDW16012 - 3 -
2. Hydraulic diagram
(*) The inlet valve can be assembled in the inlet pipe depending on the model.

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3. Wiring Diagram
Colors
Components
BK
Black - negro
C
Capacitor - Condensador
BR
Brown - marrón
D/Ed
Dispenser - Jabonera
BU
Blue –azul
DIV
Opc. (1)
Diverter valve switch –int. valv. lavado alternado
GN
Green - verde
Door
Door switch –cierre puerta
GY
Grey - gris
EV1
Inlet valve –válvula de entrada
OR
Orange - naranja
EV2
Softener valve –válvula de regeneración
PK
Pink - rosa
EV3
Opc. (1)
Water diverter –válvula lavado alternado
PU
Purple - morado
FM
Flowmeter - caudalímetro
RD
Red - rojo
IAQS
Overflow switch –interruptor desbordamiento
WH
White - blanco
ISB
Rinse aid detector –detector abrillantador
YE
Yellow - amarillo
ISS
Salt detector –detector sal
ML
Wash pump –bomba de lavado
P1
Safety level Pressure switch –presostato seguridad
P2
Heater pressure switch –presostato resistencia
PS
Drain pump –bomba de desagüe
R
Heater element - resistencia
RE
Temperature sensor –sonda temperatura
Turbidity
Opc. (2)
Turbidity sensor –sensor de turbiedad

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The components marked as Opc.(1) and Opc.(2) are only included in some models.
4. Service Test
Once the service test is launched (see how to start it in the specific page for your
model), the following sequence will be executed:
Test Service
Nº
Display (*)
Consumption (A)
Description
0
8:88
≈ 0,0
Start test
1
05 or
(value)
≈ 0,04
The inlet valve turns on until 3.6 l. are loaded
(3 l. for 45 cm. models).
If the model is equipped with alternative valve,
it will be working in this step. If the model is
equipped with turbidity sensor, the display will
show the value it is measuring.
2
04 / temp.
≈ 8,0
The washing pump starts working at high
speed and 10 seconds later, the heater
element will turn on until water temperature
reaches 57º C. Then, the test will pause until
the “Program” or “Start/Pause” (depending on
the model) button is pressed.
3
03
≈ 0,4
≈ 0,05
The washing pump starts working at low
speed. After 8 seconds, the dispenser turns on
for 45 seconds.
4
02
≈ 0,05
Regeneration valve turns on for 30 seconds.
5
01
≈ 0,2
The draining pump turns on for 30 seconds.
6
F
≈ 0,0
Test ends. The dishwasher beeps once and
stays in stand.
(*) Models without display will turn on and off the program led sequentially during the
service test.

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Service Manual: MSDW16012 - 6 -
5. Error messages
In case of failure, the dishwasher will display an error message. If the dishwasher does
not have display, it will show the error code according to the table below.
Error\Program
LED1
LED2
LED3
Meaning
E1
Water filling exceeding pre-
set time.
E3
Heating phase exceeding pre-
set time.
E4
Overflow.
E6
Open circuit failure of
temperature sensor.
E7
Short circuit failure of
temperature sensor.
E8
Alternate valve failure.
Error
Possible Causes
Remedy
E1
Water tap is not turned on. [User to check].
Turn on the water tap.
Low water pressure (<0.04MPa). [User to
check].
Turn on the water tap and
ensure full opening position.
Pressure switch is broken, stop at inlet process.
Replace the pressure switch.
Inlet valve is broken, no water in tub.
Replace the Inlet valve.
Drain pump is broken, water cannot drain out.
Replace the drain pump.
Wire terminal which connects the pressure
switch is loosen.
Reconnect the wire terminal.
PCB cannot drive the valve, no water in tub.
Replace the PCB.
E3
Temperature sensor is loosening or broken,
water is too hot.
Check the sensor or replace the
sensor.
Wire terminal connected to the heater is loosen,
water cannot be heat.
Reconnect the wire terminal.
Heating element is broken, water cannot be
heat.
Replace the heater element.

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PCB cannot drive the heater, water cannot be
heat.
Replace the PCB.
E4
Tank is leaking.
Pad the tank and check sprayer
for any leak on it.
Hose is leaking.
Replace the hose.
Floater switch is broken or PCB is faulty.
Replace the float switch or the
PCB.
E6
Wire terminal connected to the temperature
sensor is loosening.
Wire terminal connected to the temperature
sensor is short circuited or open circuited.
Reconnect the wire terminal or
replace the sensor.
E7
E8
Wiring damage or alternate valve failure
Check connections or replace
valve.
E9
Sensor/button pressed for more than 30 s.
Check if there’s water on the
control panel.

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6. Main components
Inlet valve / Aquastop (depending on models)
Power supply = 220 –240 V
Coil resistance = 4.4 –4.8 KΩ
NTC Sensor
Flowmeter
Measure with the multimeter in diode function between the two
pins in the connector while water is coming in the dishwasher. If
the flowmeter is ok, the multimeter should beep intermittently.
Washing pump
Power supply = 220 –240 V
Main coil resistance = 116.4 Ω(±7%)
Secondary coil resistance = 101.5 Ω(±7%)
Capacitor = 3μF
Draining pump
Power supply = 220 –240 V
Coil resistance = 235 Ω± 15 Ω
Heating element
Power supply = 230 V
Rated power = 1800 W
Resistance = 29.3 Ω± 1.47 Ω
Alternate valve (Opc.(1))
Power supply = 230 V
Resistance = 5,75 K Ω
Turbidity sensor (Opc.(2))
It can be check during service test, step 1. If the display shows 99, the
sensor is faulty.

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7. LP8 700 / LP8 400
1. ON/OFF button
6. ON / OFF indicator
2. Half load button
7. Half load indicator
3. Salt / rinse indicators
8. Program indicators
4. Program button
9. Program phase indicators
5. Start / Pause button
Wiring diagram:
See section 3
Optional Components:
None
Hydraulic diagram:
See section 2
Error indication:
Service Test
Follow the next steps to launch the test service:
- Connect the appliance to the power supply.
- Keep pressed the Start / Pause button [5]. The door must be open
- Press and release ON/OFF button [1]. All leds from control panel start to blink.
- Once the door is closed, service test will start.
You can advance to the next step of the test by pressing the Start / Pause button [5],
except during water loading.