Kuppersbusch IKEF 238-5 Bedienungsanleitung

Replacing an NTC sensor

IKEF 238-5, IKEF 248-5, IKEF 308-5 Z3

IKE 309-5-2T, IKE 318-4-2T, IKE 339-0

IKE 458-4-4T, ITE 239-0

Service Manual: H8-74-05

Responsible: U. Laarmann KÜPPERSBUSCH HAUSGERÄTE AG

E-mail: uwe.laarmann@kueppersbusch.de

Phone: (0209) 401-732 Kundendienst

Fax: (0209) 401-743 Postfach 100132

Date: 6.06.2007 45801 Gelsenkirchen

Example of a name plate

Model design

Version type

PNC number

Serial number

Year Week

Service Manual 3

For internal use only

Inhalt

1. Safety ............................................................................................................................... 4

2. Temperature sensor faults ............................................................................................ 5

2.1 Fault checking ....................................................................................................... 5

2.2 Features of the temperature sensor ...................................................................... 5

3. Schedule of sensor installation .................................................................................... 8

4. Projection positions ....................................................................................................... 9

5. Instructions for replacing a sensor ............................................................................ 14

5.1 Kit B - spare-part no. 43 37 25 ............................................................................ 14

5.2 Kit C - spare-part no. 43 37 23 ............................................................................ 17

5.3 Kit D - spare-part no. 43 37 24 ............................................................................ 20

4 Service Manual

For internal use only

1. Safety

Danger!

Repairs may only be carried out by a qualified electrician!

Improper repairs can be extremely dangerous for the user.

It is essential that you observe the following instructions in order to prevent electric shocks:

• The casing and the frame may be live in the event of faults!

• Touching live components inside the appliance may cause dangerous currents to flow through your

body!

• Disconnect the appliance from the mains prior to carrying out any repair work!

• When inspecting live parts, a residual current circuit breaker must always be used!

• The earthed conductor resistance must not exceed the resistance specified in the standard! It is vital

for ensuring the safety of persons and the functioning of the appliance.

• On completion of repairs, an inspection must be carried out in accordance with VDE 0701

[Association of German Electrical Engineers] or in accordance with the corresponding regulations for

your country!

Make sure you observe the following instructions:

• The appliances must be disconnected from the mains prior to all repairs. If inspections must be

carried out on live appliances, make sure you use a residual current operated device.

Attention!

Sharp edges: Use protective gloves.

Components may be electrostatic!

Observe handling precautions!

Service Manual 5

For internal use only

2. Temperature sensor faults

If the NTC temperature sensor develops a fault, the corresponding symbols will be shown in the displays

of the various electronic devices.

2.1 Fault checking

Attention!

Repairs may only be carried out by qualified electricians or specialists!

Attention!

Disconnect the appliance prior to commencing with work!

1. Pull the plug out of the socket and keep the doors closed for as long as possible.

2. Switch off the temperature sensor consumers in the electronics system.

3. Position a thermometer near the temperature sensor or so that it makes contact with the

temperature sensor (place the thermometer in the centre zone of the evaporator plate for

evaporator sensors).

4. At the same time measure the resistance at the ends of the connector.

5. Compare the reading of the temperature and the temperature of the resistance measured (see

following chart).

6. The temperature sensor will not need to be replaced if the two temperatures vary by a max of + or

- 10°C. In this case the contact may be faulty, so please check the wiring of the sensor and the

contacts of its connector with the electronic unit. Otherwise the temperature sensor will be defect

and will need to be replaced. Please refer to the table of appliances shown on page 8 for the

correct order number.

7. Repeat items 3 to 6 for each individual temperature sensor.

2.2 Features of the temperature sensor

Temperature in °C Resistance (ohms) Temperature in °C Resistance (ohms)

-40 90721 -30 47606

-39 84867 -29 44735

-38 79431 -28 42056

-37 74381 -27 39556

-36 69686 -26 37221

-35 65320 -25 35039

-34 61258 -24 32999

-33 57475 -23 31092

-32 53952 -22 29307

-31 50668 -21 27637

6 Service Manual

For internal use only

-20 26072 11 5087

-19 24600 12 4851

-18 23221 13 4626

-17 21928 14 4414

-16 20715 15 4213

-15 19577 16 4022

-14 18509 17 3840

-13 17506 18 3668

-12 16564 19 3505

-11 15678 20 3350

-10 14845 21 3202

-9 14059 22 3062

-8 13320 23 2929

-7 12624 24 2802

-6 11969 25 2682

-5 11352 26 2567

-4 10770 27 2458

-3 10222 28 2354

-2 9705 29 2255

-1 9218 30 2161

0 8758 31 2071

1 8322 32 1985

2 7911 33 1904

3 7523 34 1826

4 7156 35 1752

5 6809 36 1681

6 6481 37 1614

7 6171 38 1549

8 5877 39 1488

9 5600 40 1429

10 5337

Temperature in °C Resistance (ohms) Temperature in °C Resistance (ohms)

Service Manual 7

For internal use only

8 Service Manual

For internal use only

3. Schedule of sensor installation

Defect NTC temperature sensor

Model PNC Date

As at 09.2006

Kit

no.

Proj.

position

Spare

part. no.

Kit no. Proj.

position

Spare part.

no.

Kit no. Proj.

position

Spare

part. no.

Kit no. Proj.

position

Spare

part. no.

Kit no. Spare part.

no.

Note

IKEF238-5 92345700700 20040514 C 433723 C 433723 D 433724 Kit not available Not available

IKEF238-5 92345700700 20040702 C 433723 C 433723 D 433724 Kit not available Not available

IKEF238-5 92345700700 20050520 C 433723 C 433723 D 433724 Kit not available Not available

IKEF238-5 92345700700 20050715 C 433723 C 433723 D 433724 Kit not available Not available

IKEF238-5 92345701500 20060331 C 433723 C 433723 D 433724 Kit not available Not available

IKEF238-5 92345701600 20060623 C 433723 C 433723 D 433724 Kit not available Not available

IKEF248-5 92352401000 20040514 C 433723 C 433723 D 433724 Kit not available Not available

IKEF248-5 92352401000 20040702 C 433723 C 433723 D 433724 Kit not available Not available

IKEF248-5 92352401000 20050513 C 433723 C 433723 D 433724 Kit not available Not available

IKEF248-5 92352401001 20051028 C 433723 C 433723 D 433724 Kit not available Not available

IKEF308-5Z3 92570365900 20050311 C 433723 C 433723 B 1 433725 B 1 433725 Not available 2 compressors

IKEF308-5Z3 92570365900 20060414 C 433723 C 433723 B 1 433725 B 1 433725 Not available 2 compressors

IKEF308-5Z3 92570367000 20060424 C 433723 C 433723 B 1 433725 B 1 433725 Not available 2 compressors

IKE309-5-2T 92569665500 20050415 B 4 433725 Kit not available Kit not available Kit not available Kit not available

IKE309-5-2T 92569666000 20060414 B 4 433725 Kit not available Kit not available Kit not available Kit not available

IKE309-5-2T 92569666100 20060609 B 4 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570065900 20010216 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570065901 20010926 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570065902 20030124 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570065903 20030606 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570068000 20040402 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570068001 20040514 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570068002 20040924 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-4-2T 92570068003 20050225 B 2 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-5-2T 92570166800 20060324 B 5 433725 Kit not available Kit not available Kit not available Kit not available

IKE318-5-2T 92570167000 20060602 B 5 433725 Kit not available Kit not available Kit not available Kit not available

IKE339

IKE458-4-4T 92578170100 20040910 B 8

433725 Not available Not available

D 433724 C 433723

ITE239-0 92275471300 20060519

Not available Not available

B 3 433725

Not available

Freezer airAir 0°CRefrigerator evaporatorRefrigerator air

Service Manual 9

For internal use only

4. Projection positions

Position 1

Position 2

10 Service Manual

For internal use only

Position 3

Position 4

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