background image

REPAIR INSTRUCTIONS

r120085e -15/1

04.99

TUMBLE DRYER

Vented   WTA34.. / WTA35..

I.

SAFETY INFORMATION

Page

1

II.

OPERATION

Page

1

III.

DESCRIPTION OF FUNCTION / TECHNICAL INFORMATION

Page

2

IV.

CONSUMPTION RATES / ENERGY REQUIREMENT / OTHER DATA

Page

6

V.

REPAIRS

Page

7

VI.

SUPPLEMENTS

Page

13

I.

SAFETY INFORMATION

Before commencing repairs, ALWAYS disconnect the appliance from the power supply!
If tests have to be performed while the appliance is live, ALWAYS use a residual-
current-operated circuit-breaker! When repairs are complete, perform a function test, as
well as a safety test in accordance with VDE 0701.

1.

Safety test in accordance with VDE 0701

Plug in the tester mains plug.

In the case of switchover models connect L1 and L2 on the tester.

Switch on the appliance (door must be closed).

Perform the test.

II.

OPERATION

1.

Selecting the programme

“Cottons/coloureds”

Turn the programme selector in a clockwise direction to the 
desired drying setting (6 automatic drying settings).

Easy-care

Turn the programme selector in an anti-clockwise direction to the
desired setting (5 automatic drying settings).

Timed programme

Turn programme selector / time switch to the desired time.

2.

Buttons

ON/OFF

Switches the appliance on / off.

“Low heat”

For delicate textiles. The temperature is reduced.

Summary of Contents for WTA34 Series

Page 1: ...unction test as well as a safety test in accordance with VDE 0701 1 Safety test in accordance with VDE 0701 Plug in the tester mains plug In the case of switchover models connect L1 and L2 on the tester Switch on the appliance door must be closed Perform the test II OPERATION 1 Selecting the programme Cottons coloureds Turn the programme selector in a clockwise direction to the desired drying sett...

Page 2: ...time the Start time LED flashes press the Start time button again the LED switches to a steady light Optional WTA3480 WTA3500 3 Programme progress indicator Dampness in the washing is continuously checked by the electronic sensor system The programme status is displayed by an LED III DESCRIPTION OF FUNCTION TECHNICAL INFORMATION 1 General information The design is based on a fully electronic solut...

Page 3: ...ridges 1 2 Control and power module The module houses all the significant components e g micro controller relays power supply etc It performs complex functions with respect to controlling drying sequences monitoring the temperature ascertaining parameters and actuating the operating and display section The appliance is switched over from 16 A to 10 A by means of a wire jumper Wire jumper closed 16...

Page 4: ...s of two heating coils E2 E3 the bimetallic thermal cut out B9 and the NTC R2 Heat setting 2 1200 W Heat setting 3 1800 W 1 6 Bimetallic thermal cut out heater The thermal cut out should respond when localised overheating occurs e g if the air flow or electrical temperature control fails If a fault occurs the thermal cut out must be manually actuated by pressing the red reset button Response tempe...

Page 5: ...onsists of 2 phase windings which operate at different power levels a different heating control can be used at various heat settings Heat setting 0 OFF Heat setting 2 E3 Heat setting 3 E2 E3 The heat setting which is active is dependent on the programme sequence and on the temperatures behind the heater NTC R2 and on the drum outlet NTC R3 If the motor rotates in an anti clockwise direction the cu...

Page 6: ... min If the temperature does not drop below the temperature limit within 10x30 sec the drying process is terminated and an Overheating error message extra dry LED is output IV CONSUMPTION RATES ENERGY REQUIREMENT OTHER DATA 1 Energy efficiency class C 2 Energy consumption Spin speed in r p Approx values Drying time in minutes including 4 min cooling down Approx time values Energy consumption in kW...

Page 7: ...aging Error no Error display Possible cause Test Procedure 1 Drying LED flashes in the progress indicator NTC fault NTC R4 A Appliance ambient temperature 0 C Customer instruction Do not operate the appliance below 0 C B NTC R4 cable or plug and socket connection defective Remove the cable from the power module Test NTC cable and plug and socket connection C Power module defective If 1 A and 1 B a...

Page 8: ...play only in test program time error Washing not drying properly Drying time too long Dry in 180 240 minutes A Washing too wet initial moisture too high Customer instruction B Overload 5 kg dry weight Customer instruction C Fluff filter blocked Clean fluff filter D Thermal cut out B9 has tripped See Error number 14 E Short circuit or shunt circuit in conductivity system See Error number 12 B F Hea...

Page 9: ...has been actuated Motor capacitor defective Test motor capacitor and wiring B Door switch defective See Error number 15 C Power module defective Start BW cupboard dry test program and measure drive voltage for motor Clockwise rotation Mains voltage between X11 10 5 and X11 10 3 Anti clockwise rotation Mains voltage between X11 10 5 and X11 10 4 Before performing this test remove the heater plug as...

Page 10: ...operly Too damp A Wrong programme selected Customer information Select higher degree of dryness B Door switch or power module defective See Error numbers 15 A and 15 B C Excessive contact resistance in conductivity system Start Gentle dry test program Short circuit between the agitator and drum If an error is displayed Test sliding contact system and internal contact between agitators for continui...

Page 11: ...ule If an error is not displayed Test the sliding contact system Remove plug and socket connection X11 5 from the power module and measure the resistance between Pin 1 and Pin 3 on the plug 500 V Insulation resistance 20 MΩ 12 Appliance dries for only 9 13 minutes Empty drum dry washing Customer information After approx 9 13 minutes dryer recognises empty drum and or dry washing 13 Thermal cut out...

Page 12: ...If the appliance starts the power module is o k 15 Appliance does not start Operating module defective Activate test mode If this mode can be activated the operating module is o k Check whether the circuit board has become detached from the operating module If not continue with Error number 15 16 Button display or programme selection malfunctions occasionally Operating module or power module defec...

Page 13: ...idity Clocking at reduced heat output No stop function when start button pressed again 2 Spark discharge between belt clamping device and motor connector plug Drive belts were occasionally manufactured with an insufficient carbon content resulting in a static charge build up between the belt wheel and drive belt In these cases the drive belt Mat no 15 4142 must be replaced 3 Improvement in tempera...

Page 14: ...ess Start button Display model 16 A model Display 16 Low heat LED on 10 A model Display 10 Low heat LED off Switch over model Press Low heat button Display and Low heat LED flash Press Start button The last displayed status is acknowledged 6 Buzzer on the operating module The buzzer on the operating module is available as a spare part Mat no 16 8577 from the logistics centre in Fürth When replacin...

Page 15: ...period FD7710 FD7803 The assembly kit Mat no 15 4177 is also available as a spare part See diagram for installation 9 Increase to customer service index 06 New base group consisting of an upper and lower section As the exhaust air distributor is integrated noise is reduced The new base group has been in use since 08 98 ...

Reviews: