10-5 Diagnosing the main components

 

Components

Diagnosing methods and criteria

 

 

 

Location

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure the

 

 

 

 

 

 

Mechanical

 

 

Compressor

Measuring point

Normal

 

Abnormal

 

 

 

resistance.

 

 

 

 

 

 

compartment

 

 

Primary iwre

Approx 10~500

0and

 

 

 

 

- Bring the component to cool down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

completely before measuring.

Secondary wire

3~20

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure the

 

 

 

 

 

 

Mechanical

 

 

P.T.C Relay

resistance.

Normal

 

 

Abnormal

 

 

 

- Bring the component to cool down

 

 

 

 

 

 

compartment

 

 

Approx ∞~

 

0and ∞

 

 

 

 

 

 

 

 

 

 

completely before measuring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure

 

 

 

 

 

 

Electrical

 

 

Condenser

the resistance.

Normal

 

 

Abnormal

 

 

 

Approx 10~ 80

 

0and ∞

 

equipment box

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure

 

 

 

 

 

 

 

 

 

 

the resistance.

Normal

 

 

Abnormal

 

Mechanical

 

 

 

- Bring the component to cool down

 

 

 

 

compartment

 

 

Overload relay

Approx 200

 

0and ∞

 

 

 

completely before measuring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Circuit-motor

Use the tester to measure

 

 

 

 

 

 

Mechanical

 

 

the resistance.

 

 

 

 

 

 

compartment

 

 

Normal

 

 

Abnormal

 

 

 

&

 

 

 

 

 

- Bring the component to cool down

 

 

 

 

 

 

Freezing

 

 

Approx 100~20

 

0and ∞

 

 

 

Fan-motor

completely before measuring.

 

 

compartment

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure

 

 

 

 

 

 

 

 

 

Rotating blade

the resistance.

Normal

 

 

Abnormal

 

Refigerating

 

 

geared-motor

- Bring the component to cool down

Approx 10~20

 

0and ∞

 

 

 

 

 

compartment

 

 

completely before measuring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure

 

 

 

 

 

 

 

 

 

Measuring point

Normal

 

Abnormal

 

Between the

 

 

 

the resistance.

 

 

 

 

 

 

 

 

Door switch

A B contact point

 

 

 

0and

 

 

 

 

 

 

 

upper and the

 

 

 

 

 

 

 

 

 

 

 

 

When the switch is on

Approx 200M

 

 

 

 

 

 

lower doors

 

 

 

 

by the contact

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure

Measuring point

Normal

 

Abnormal

 

Electrical

 

 

 

the resistance.

Between terminals

Approx 200

0and

 

 

 

Defrost timer

 

equipment box

 

 

 

Temperature fuse

Approx 10~300

 

 

 

 

 

 

 

 

 

 

terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure

 

 

 

 

 

 

Lower EVAP

 

 

 

Normal

 

 

Abnormal

 

 

 

Defrost heater

the resistance.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Approx 3~6

 

∞M~ ∞

 

 

 

 

 

- Bring the component to cool down

 

 

 

 

 

 

completely before measuring.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the tester to measure

 

 

 

 

 

 

 

 

Bimetal

Measuring point

Normal

 

Abnormal

 

 

 

 

the resistance.

Bimetal terminal

 

 

 

 

 

EVAP

 

 

Temperature fuse

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature fuse

Approx 200M

~ ∞

 

 

 

 

 

 

 

 

 

 

 

terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SR-21/24 NME(WME)

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Samsung S21ENPSWHN/ITM, S24ENPSWHN/ITM, S24ENPSWQN/BUL manual Diagnosing the main components, Location