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Author Topic: Need help with a LG LinearCompressor  (Read 15294 times)

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #40 on: April 09, 2021, 07:51:09 PM »

If you don't want to spend time and money on it anymore the big appliance sales will start around tax return week.
Lowes has a nice 26.6 cu ft french door by Hisense that uses the newer r600 refrigerant and it has been on sale in the past for $1300.
It is also sold by BestBuy but branded as Insignia for them.
I have come to realize these 3k and up fridges are just a bad investment they all have major problems so if you buy a new 1300 fridge and it dies after 6 yrs it doesn't hurt as much to junk it.

Offline quada

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Re: Need help with a LG LinearCompressor
« Reply #41 on: April 09, 2021, 08:26:13 PM »
Strange because Searspartsdirect Appliancepartspros and Repairclinic all show the TCA36411702 aka FC75LANE as the compressor for the Kenmore model number you have.


Do you have 2 separate control boards because the LANE has a inverter board separate from the main logic board.


The A models went to one big board on the back of fridge with large Capacitors down near the bottom of the board, that is the inverter section built into the main logic board.


So if you can post a pic of the board on the back of fridge maybe can identify what is going on.

See this link for a picture of the boards I have: https://imgur.com/a/W2rw1XV

The top board is what I am assuming is the compressor inverter board is model number EBR65640204.
The bottom board is EBR650027 or EBR65002716, not sure if you include the big numbers.  I assume this is the main logic board.

If you had a choice between the FC75LANE and the FLS075LANA which one would you choose?  Do I even have the option of going the FC75LANE route with a *NE compatible PCB?  Would any compressor inverter PCB work with the main logic board I have?

I understand your note about the $1300 new models but I would like to try to fix the one I have.


Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #42 on: April 09, 2021, 08:27:25 PM »
Does the board you have in the fridge look like this one shown on searspartsdirect EBR64173902?


If you look closely at the picture it has a small red decal on the board that says FC75LANE



If yes then you cannot flash that board it is only used for the E compressors FC75LANE and someone must have worked on the fridge and put a A type compressor in it.
Did you have this fridge since it was new do you know the history of it?

https://www.searspartsdirect.com/product/1iq11z5ofl-0046-795/id-EBR64173902

Offline quada

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Re: Need help with a LG LinearCompressor
« Reply #43 on: April 09, 2021, 08:42:57 PM »
Does the board you have in the fridge look like this one shown on searspartsdirect EBR64173902?


If you look closely at the picture it has a small red decal on the board that says FC75LANE



If yes then you cannot flash that board it is only used for the E compressors FC75LANE and someone must have worked on the fridge and put a A type compressor in it.
Did you have this fridge since it was new do you know the history of it?

https://www.searspartsdirect.com/product/1iq11z5ofl-0046-795/id-EBR64173902


I did post a picture of the boards a few minutes before your post, my posts just have to get approved manually by a moderator so they might be a little delayed.  My board has an orange sticker that says FC75LBNA NTC on it.

Offline breezee361

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Re: Need help with a LG LinearCompressor
« Reply #44 on: April 09, 2021, 10:29:39 PM »
So I have a kenmore/lg refrigerator model number 795.51833.411 and I replaced the compressor with a new one however it is not an LG compressor if I'm not mostaken I think it is an embraco is it possible to run this compressor after I program the board with that pcb programming tool.? Or are LG compressors only go in LG refrigerators.?

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #45 on: April 09, 2021, 11:30:15 PM »
Try reading this LG manual pg 56 they start talking about A or E inverter so apparently they did have 2 versions and 2 compressors in the same model fridge!!


I would order the same part numbers you have now and same compressor since it was working before it broke.


See if this link lets you download the manual


https://www.applianceblog.com/mainforums/attachments/lfx28978-lfx25978-service-manual-pdf.31562/

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #46 on: April 10, 2021, 06:58:32 AM »
So I have a kenmore/lg refrigerator model number 795.51833.411 and I replaced the compressor with a new one however it is not an LG compressor if I'm not mostaken I think it is an embraco is it possible to run this compressor after I program the board with that pcb programming tool.? Or are LG compressors only go in LG refrigerators.?

No you cannot run Embraco with a LG inverter controller because LG only uses 2 pins on the compressor the other pin is not connected to anything.  Embraco has all 3 pins to a winding and uses 3 phases to operate. Totally different type of motor inside each.

Offline Usertrojan

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Re: Need help with a LG LinearCompressor
« Reply #47 on: April 12, 2021, 05:35:16 PM »
NOTE:When servicing an LG fridge that will have the compressor replaced with their new Universal Compressor (TCA38091801), control boards manufactured prior to 2014 WILL NOT WORK with the update jig. This means that any fridge made 2013 and prior must have the control board replaced AND reprogrammed with the jig before running the compressor. Failure to do this will result in a dead compressor which must be replaced again.

Apologies for bringing up this older post; however, I have a customer with a # LG Refrigerator who needs the new universal compressor and (based on this) also is in need of an updated control board.  My question is, do all the control boards need to be replaced or just the main control board (EBR73304210) and then flashed?  I'm hoping it is just the main control board.

Cheers,
RE5513

Hi Houptee,

I'm in this situation: I bought and installed the FLS075LANA, got the software upgrade jig and when I connected to the PCB (ERB7334210) nothing was happening (was not identifying the compressor model#). Based on your note and more research, I learned that my PCB was built on December 2012 and does not have the boot program, therefore cannot be updated.

My question: I understand I need to buy a new PCB, but do I need look for the exact PCB model (ERB7334210) or can I update with a different model like ERB789405 for example?

Thanks

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #48 on: April 13, 2021, 10:33:25 AM »
Usertrojan did you buy a compressor that has the red decal on top warning about software update?
That is the newest compressor and what you want to install.
It needs the software updated or it will damage the compressor.

This discussion got a bit confused because some of the other posts they have the older LG design with 2 separate boards, one main logic board and one compressor inverter board.

If you have the fridge with one large board on the back with large capacitors near the bottom then you must update those large boards when you install the newest version compressor that has the red decal on top.

Look up your model on the parts search link at top of the page for appliancepartspros.com and it should give you the newest main board part number. Or check other parts sites like searspartsdirect, encompass, repairclinic, etc to confirm that all show same part number for the main board.

Offline Usertrojan

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Re: Need help with a LG LinearCompressor
« Reply #49 on: April 13, 2021, 04:00:55 PM »
Thanks for the response. 

Yes, I have the red decal on the new compressor and model # is FLS075LANA.
Yes, I have the fridge with one large board with the large capacitor on the bottom.

I can't find the PCB part# (ERB7334210) anywhere on those suggested sites.  I see them on Ebay but the build# is before 2014 so I know I can't use them.  I also see PCBs with different model#s that visually look the same as the one I have now but just don't know if I can just use them... any other suggestions?  sigh... should've just bought a new fridge to begin with!

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #50 on: April 13, 2021, 07:11:58 PM »
Look up the board by putting the fridge model number and then use the diagrams and find the main board in the list and see what part number it says is the current part number for that fridge.
It might show a new part number and then a notation > (replaces old # you have now).

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #51 on: April 13, 2021, 10:19:11 PM »
Official LG training video for the software update procedure:

https://youtu.be/Z5oMBH3CSK0

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #52 on: April 14, 2021, 08:47:11 AM »
He shows 3 LG main boards and 3 jigs with different versions of the firmware on each jig.
The 8.3, 8.5,  and  8.7 firmware is on his jigs but the update would not work with the 8.5 version so then he used 8.7 and it worked.

So possibly 8.5 version has a glitch and they fixed it with the newer firmware 8.7.

https://youtu.be/55cjX5uRO9c

Offline Usertrojan

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Re: Need help with a LG LinearCompressor
« Reply #53 on: April 14, 2021, 11:02:40 PM »
Look up the board by putting the fridge model number and then use the diagrams and find the main board in the list and see what part number it says is the current part number for that fridge.
It might show a new part number and then a notation > (replaces old # you have now).

Okay thanks.  I will try that.

Offline pmoph71

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Re: Need help with a LG LinearCompressor
« Reply #54 on: May 31, 2021, 03:03:28 PM »
 I have a 2011 model LMX25964ST/02 refrigerator that stopped cooling. I replaced the compressor with a FLS075LANA and replaced the control board with a new EBR73304207. I was told that I did not need to do the Software Upgrade by JIG since the board was manufactured in 2020. I plugged everything in and received no alarm or on control panel but it did not cool. A technician told me that the compressor was bad.
  My question is this. Have I damaged the new compressor by running without the update? If not, can I do the software upgrade by JIG and hopefully be ok?
  Thanks in advance.

Offline houptee

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Re: Need help with a LG LinearCompressor
« Reply #55 on: June 02, 2021, 06:10:44 PM »
I have a 2011 model LMX25964ST/02 refrigerator that stopped cooling. I replaced the compressor with a FLS075LANA and replaced the control board with a new EBR73304207. I was told that I did not need to do the Software Upgrade by JIG since the board was manufactured in 2020. I plugged everything in and received no alarm or on control panel but it did not cool. A technician told me that the compressor was bad.
  My question is this. Have I damaged the new compressor by running without the update? If not, can I do the software upgrade by JIG and hopefully be ok?
  Thanks in advance.
Did the compressor run at all after installation? Are you sure the connector on compressor is getting voltage and also check the pins are correctly plugged into the compressor (only 2 pins are used on compressor, one is a dummy pin, check with ohm meter and then make sure the power pins on harness are plugging into the 2 pins that show resistance.)
There was a update and you had to rotate the connector on some lg compressors to make the correct pins line up.
If that is not the issue you can also test the compressor by very carefully connecting 120v ac directly to the pins using a old power cord with insulated alligator clips soldered onto the cut end. Be really careful if you do this do not let the clips touch the metal of compressor or each other or you will see sparks fly. It will run with it hot wired but only run it for short time like that to test if compressor is dead or if it is the board not providing power.

Offline Usertrojan

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Re: Need help with a LG LinearCompressor
« Reply #56 on: June 02, 2021, 08:00:31 PM »
Official LG training video for the software update procedure:

https://youtu.be/Z5oMBH3CSK0

Hey houptee. Just wanted to say thank you for all your support and expertise. I was able to get the fridge to work again. You're the man.

Offline pmoph71

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Re: Need help with a LG LinearCompressor
« Reply #57 on: June 03, 2021, 03:54:57 PM »
Yes, the compressor is running, it is just not cooling. I installed the new connector at an angle like the instructions said.
I'm hoping I haven't ruined the compressor by not updating the software of the board.

Offline pmoph71

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Re: Need help with a LG LinearCompressor
« Reply #58 on: June 03, 2021, 04:14:05 PM »
I unplugged the connector at the compressor and connected the digital voltmeter. It bounced around from 20 VAC to 180 VAC and wanted to go back to DC measurement. very strange to me.

Offline pmoph71

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Re: Need help with a LG LinearCompressor
« Reply #59 on: June 13, 2021, 04:04:01 PM »
Hey Houptee, I'm ready to throw in the towel on this if the new compressor could have been damaged. Are the odds good that doing the software update on the new board will fix the problem? If not, it's the scrap heap for the LG. thanks,