Asko TD25 User manual

Type: TD25

Service manual

This service manual describes tumble dryer type TD25 and is a supplement to the general service manual

for the 700 series.

Contents

Introduction ...................................................................................................................................................3

Product overview ..........................................................................................................................................4

Programme ...................................................................................................................................................5

Indication of programme sequence ...............................................................................................................5

Options and settings .....................................................................................................................................6

Variant settings .............................................................................................................................................7

Test programme ............................................................................................................................................8

Troubleshooting ..........................................................................................................................................10

Components and measurement values ......................................................................................................12

Technical data .............................................................................................................................................13

Wiring diagram............................................................................................................................................14

Appendix: Timer diagram TD25 ......................................................................................................................

Service manual TD25

Introduction

You are holding the service manual for the TD25 generation of tumble dryer.

There are two types of tumble dryer in the TD25 series: TD25.1 and TD25.3. The following page presents

the different versions, to help you identify the machine types. The variants are named differently from mar-

ket to market. The type designation is the most important factor for identifying the machine type. The type

designation can be found on the machine plate, which is located inside the machine’s door.

It should be easy to service a tumble dryer. It is important that you, as a service technician, are given the

conditions to be able to carry out work in an efficient and satisfactory way. Our hope is that this service

manual is a useful tool for your daily work.

Typbeteckning Produktnummer

Löpnummer

År Vecka

Type designa- Product number

Week Serial number

Service manual TD25

TD25.3

Programme: 4 automatic programmes, 1 timer programme and 1 airing programme (For further infor-

mation, see the timer diagram at the foot of the document.)

Options: 4 (designations differ depending on the market, see directions for use.)

Settings: Temperature.

min

Airin

Normal dr

Iron dr

5 2

TTERFLY DRYIN

Type overview

TD25.1

Programme: 4 automatic programmes (For further information, see timer diagram at the foot of the

document.)

Options None.

Settings: Temperature.

T712

TTERFLY DRYIN

Program

Temperature

Extra dry

Dry Normal dry

Iron dry

TD25.3

Programme: 4 automatic programmes, 1 timer programme and 1 airing programme (For further infor-

mation, see the timer diagram at the foot of the document.)

Options: 2 (designations differ depending on the market, see directions for use.)

Settings: Temperature.

3 2

TTERFLY DRYIN

Service manual TD25

Programme

When using tumble dryer TD25 it is possible to choose between four different programmes that automati-

cally sense how damp the washing is. The machine dries to different levels depending on which of the four

programmes has been selected on the front panel. The machine only has one automatic programme that

runs for different lengths of time (and therefore dries to different levels) depending on which of the four pro-

grammes has been selected on the front panel. The automatic programme runs for a maximum of 3 hours.

The machine has a Timer programme that runs for the time that is set (20 minutes – 2 hours), regardless of

whether the washing is dry or not.

The machine has an Airing programme that blows cold air for the time that is set (5 minutes – 2 hours).

Indication of programme sequence

During the programme, the current programme sequence is indicated by a fixed light in the LEDs around

the start/stop button (see the image).

The cycle time is calculated during the start sequence.

Note!

If the door is opened whilst a programme is in operation, the programme will be interrupted and return to

the start position.

Start

End

Cooling ¼ cycle time

¾ cycle time ½ cycle time

Service manual TD25

Options and settings

Options

Means that the drum will rotate 3 seconds per minute for 2 hours once the drying

programme has finished. The option prevents the fabrics from remaining in the

same position and becoming creased, which is good if you are unable to remove

them immediately after tumble-drying has finished.

If the Buzzer is also activated

a signal will sound each time the drum rotates, as a reminder that the drying pro-

gramme has finished.

Delays the start of the machine by 5 hours.

Activated by pressing the Time-delayed start button and then the start/stop but-

ton.

The number 5 in the display indicates that Time-delayed start has been activated.

The number of hours to start is displayed with a countdown from 5 to 1.

Deactivated by pressing the start/stop button for 3 seconds until the red field next to

Time-delayed start goes out.

This means that a buzzer will sound for 3 seconds when the drying programme

finishes.

Reduces cooling to 3 minutes.

Cannot be used in the Airing programme.

(In ”normal cases” when Short cooling is deselected, the machine cools for 15

minutes. )

Settings

Possible to set to a high or low temperature.

High temperature Low temperature

Airing dryer: 57°C 43°C

Condenser dryer: 73°C 50°C

Temperature setting cannot be carried out in the airing programme.

Service manual TD25

Variant settings

The following version settings can be made after replacing the control unit.

Total reset

1. Hold the start/stop button (S1) in, start the machine by pressing the main power switch and keep the

start/stop button depressed until one of the LEDs on the panel lights.

Buzzer

1. Hold S5 or S6 pressed in, start the machine by pressing the main power switch and keep S5/S6

pressed in until L1, L13 and L15 start to flash.

2. Change the setting by pressing J1/S2. L8 lights when the buzzer is activated.

3. Confirm your selection by pressing the start/stop button (S1).

10 A or 16 A

1. Hold the start/stop button (S1) in, start the machine by pressing the main power switch and keep the

start/stop button depressed until one of the LEDs on the panel lights.

2. Press the start/stop button (S1) 5 times. L1 starts to flash.

3. Change the setting by pressing S2 or J1. L8 lights when 16 A is activated.

4. Confirm your selection by pressing the start/stop button (S1).

Adjusting drying time

1. Hold the start/stop button (S1) in, start the machine by pressing the main power switch and keep the

start/stop button depressed until one of the LEDs on the panel lights.

2. Press the start/stop button (S1) for a further 5 seconds until L1 starts to flash.

3. Change the setting by pressing S2 or J1. The selected setting is indicated as follows:

No adjustment: no LED:

+ 5 minutes: L8

+10 minutes: L9

+15 minutes: L10

+20 minutes: L11

4. Confirm your selection by pressing the start/stop button (S1).

The control unit detects and adjusts automatically to the panel layout and machine model when the option

buttons are pressed several times.

L19

L10

L11

L12

L13

L14

L15

L16

L17

L18

S8 S4S6

S10

S9 S3

J1/S2

Main power switch

S = Push button

L = LED

Service manual TD25

Total reset of programmes

To access the test programme, total reset of the programme must be carried out as follows:

1. Cancel the current programme and switch off the machine by pressing the main power switch.

2. Hold the start/stop button (S1) in and start the machine by pressing the main power switch.

3. Check that any of the LEDs around the programme knob (L7 – L12) lights. This indicates that total

reset has been carried out.

Starting the test programme

4. Press button S7 (left-hand button on divided options button) and keep it pressed for approximately 20

seconds.

Note! This must be done within 3 seconds after carrying out total reset.

• All LEDs except L17 and L18 light up continuously. This indicates that the test programme has been

activated.

Testing the motor and condensing waterpump

5. Press the start/stop button (S1).

• LED L6 lights up and is lit for the entire test program-

me.

• Condenser dryer: LED L8 lights up.

• Airing dryer: LED L7 lights up.

• The motor and condensing waterpump starts.

• Water fills the housing for the water tank until the

machine stops (check that the switch for condensation

water works).

6. Press the start/stop button (S1) to start the motor and

pump out the condensation water.

• LED L 2 lights up and is lit for the remainder of the test

programme.

Indication of faults:

Fault indication/symp-

tom Cause

The condensing

waterpump pumps until

S1 is reactivated and

L7 lights up (applies to

airing dryers).

The rear thermistor

does not have any con-

tact or is damaged.

The motor will not start. Motor or cable fault

The condensing water-

pump does not start.

Switch or cable fault

Test programme

The entire test programme is run in a sequence as follows. You can cancel the test programme at any time

during the programme by opening the door or pressing the main power switch.

L19

L10

L11

L12

L13

L14

L15

L16

L17

L18

S8 S4S6

S10

S9 S3

J1/S2

Main power switch

S = Push button

L = LED

Service manual TD25

Testing the element, thermistor and temperature regulation

7. Press the start/stop button (S1).

• LED L3 starts to flash and the large element loop acti-

vates.

8. Press the start/stop button (S1).

• LED L3 lights continuously and the machine runs heat

regulation for 15 minutes.

• LED L4 starts flashing, which means that temperature

regulation is finished.

• Cooling runs for 5 minutes.

• The machine stops.

Indication of faults:

Fault indication/symp-

tom

Cause

The element does not

start.

Element or cable fault

The programme stops.

F9 is shown in the dis-

play (applies to machi-

nes with a display).

The front thermistor is

not connected.

Testing the interval time and buzzer tone

9. Press the start/stop button (S1).

• LED L4 lights up.

• The motor starts and runs at intervals at the same time

as a buzzer sounds.

Indication of faults:

Fault indication/symp-

tom

Cause

No buzzer tone Fault in control

Cancel the test programme.

10. Press the start/stop button (S1).

• The test programme stops and ”End” is shown in the display (applies to machines with a display).

Service manual TD25

Troubleshooting

Fault indications

The following faults are indicated by a flashing red light in the start/stop button LEDs and as a trouble code

on the display (display not available on all machine versions).

Fault indication Cause Action

Display LEDs

(flashing)

Meaning

Overfilling

The machine stops.

(applies to condenser

dryers)

The condensation water tank

is full.

Check if the customer has:

• Emptied the tank and

restarted the machine

Condensing waterpump or

hoses blocked.

• Clean hoses and check

voltage and resistance in

the drain pump.

Float/float switch is defective. • Check that the float has

not got “stuck” and check

the function of the micro-

switch.

The control unit is faulty (the

pump does not start).

• Replace control unit.

Maximum permitted pro-

gramme time

The machine stops after 3

hours.

The washing has been spun

at too low a speed, i.e. less

than 800 rpm.

Check if the customer has:

• Tried spinning at a higher

speed

The control unit did not have

chance to reset, but added

the time to the next drying

cycle.

Check if the customer has:

• Has the machine switched

off for 30 minutes before

restarting

High ambient temperature

combined with low element

output and low drying tempe-

rature leads to condensation

formation.

Check if the customer has:

• Attempted to select an-

other programme

• Good ventilation in the

room

Poor condensation due to

blocked external air

• Ensure that the external air

has free passage.

Defective thermistor. • Replace the thermistor.

Defective control unit • Replace control unit.

(no indication in

LEDs)

Thermistor fault

The machine stops.

The front thermistor is de-

fective or the control is not in

contact with it.

• Replace the thermistor.

After carrying out corrective actions as above, reset the fault indications by switching off the machine using

the main power switch.

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