6. TROUBLESHOOTING

6-1 COMPRESSOR AND ELECTRIC COMPONENTS

1

Power Source.

Remove PTC-Starter from Compressor and measure voltage between Terminal C of Compressor and Terminals 5 or 6 of PTC.

No Voltage.

(Reated Voltage ±10%)?

OLP disconnected?

YES

2

YES

Replace OLP.

5

Check connection

condition.

Reconnect.

Applied voltage isn't in range of Rating Voltage ±10%.

Advise customer that

power supply needs to be 5 checked by an electrician.

2

3

4

Check resistance of Motor Compressor.

Check resistance of PTC-Starter.

Check OLP.

Check resistance between M-C, S-C and M-S in Motor Compressor.

Check resistance of two terminals in PTC-Starter.

Check resistance of two terminals in OLP.

Readings OK

Open or short

 

Replace

 

 

3

4

 

 

 

 

 

 

 

Compressor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Readings OK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Open or short

 

Replace

 

 

 

 

 

 

 

 

PTC-Starter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Readings OK

 

 

 

 

 

 

Open or short

 

 

 

 

 

 

Replace OLP.

 

 

 

 

 

 

 

 

 

 

3

5

4

5

5

5

Check starting state.

Check the power supply under load. (Compressor attempting to re-start after being off for 5 minutes).

 

Supply

YES

Did

YES

Compressor

 

voltage

 

compressor

 

is OK

 

rating with

 

start?

NO

 

 

 

 

 

±10%.

 

 

Replace the

 

 

 

 

 

compressor

 

 

 

 

 

 

NO

1

 

- 10 -

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LG Electronics LRTN22310, LRTN19310 service manual Troubleshooting, Compressor and Electric Components

LRTN19310, LRTN22310 specifications

LG Electronics has consistently been at the forefront of home appliance innovation, and the LRTN22310 and LRTN19310 refrigerator models exemplify this commitment. Both models are designed to cater to the needs of modern consumers, combining functionality with cutting-edge technology.

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