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LG LRFCS2503S not cooling, 3 red flashes on PCB


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Posted

LG LRFCS2503S unit stopped cooling, getting 3 red flashes on PCB unit, metered out compressor terminals, terminals to ground are good, but not reading from terminal to terminal, not sure what the linear compressor readings should be?

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  • Richbahama

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Posted Images

Posted

if your getting 3 blinks and resetting it doesn't work , you more likely have a bad Compressor .

Compressor terminal reading's should be 

Power 6.6 - 7.6 ohms

Save 9.1 -10.5 ohms 

Lg changed the naming to power , save and common for the terminal names instead of Start, Run , common

Posted

Ok, sounds correct, no reading what so ever between the terminals of the compressor unit, very odd

 

  • 1 month later...
Posted

I just had one of these also with 3 led blinks (not listed in service manual)

 

I also had no ohm readings on ANY of the compressor terminals.  Told customer to call LG under limited compressor warranty.

Posted

This is a rare linear compressor, it has sense tap for the coil. 

image.png.6676bbe2a4a1dafb4e547d7381a2732e.png

 

 3 blinks is a stroke trip. 

image.png.a665db78b74a2d61f4e6e406d8ccb904.png

Check the connections, harness, capacitor and compressor winding to each other and ground. 

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