Author Topic: LG French Door (LFX31925) Freezer Cold, Fridge not  (Read 4651 times)

Offline domain

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #15 on: March 02, 2013, 03:23:14 PM »
YA BUDDY YOU CAN. Look at your new and old PCBs, and on one of the TWO larger BROWN caps for the inverter side, will have a white label with the exact part number located on it. You will also notice the upper 3 connectors will be longer than the original versions. Original version ended in 01, which led to 09 and now is 16. It is a software update to keep the fans off longer after defrost to let the water sheen off and enter the tray in the compressor compartment versus pull the moisture back up into the fan assemblies and or freezer section. The grille assembly will have more exhaust vents and the intake will be partially blocked off causing a higher overall pressure in the freezer. This will help prevent moisture from being sucked in when the freezer compartment is accessed. The fan and or main have also increased the torque to provide better starting and airflow on the newest updated parts. :D

Offline niobrara

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #16 on: March 02, 2013, 05:51:36 PM »
Cool,Thanks for the information. I hated replacing there boards without knowing if I was getting a updated board. Besides the grills are so easy to replace.Just remove everything in the freezer. Really like to know what I'm replacing will correct the issue. I still remember there first air flow fixes !! They really seem do be moving ahead on there ref designs. I always liked there set up just hated the ice up issues. Really glad to know about the boards.

Offline agreif11

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #17 on: March 02, 2013, 05:52:40 PM »
OK, if you can point out where in the service manual these parts are called out, that would be perfect so I can check it and know where to check the resistance that you initially talked about.

Offline agreif11

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #18 on: March 02, 2013, 09:31:40 PM »
So air temp is varying anywhere between 44 and 36/7ish but the glass of water has never dipped below 40F.

Offline domain

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #19 on: March 02, 2013, 09:46:13 PM »
Thats a tough on. Per lg there is a 7 to 10 degree swing on their thermisters. Hmmm.  :D

Offline agreif11

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #20 on: March 02, 2013, 09:50:49 PM »
I should mention that is with the fridge set to 33.

Offline domain

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #21 on: March 02, 2013, 09:54:14 PM »
Technically it can be 43 per lg when set to the lowest setting of 33.  I am not saying I agree but I can not change product design.  :D

Offline agreif11

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #22 on: March 02, 2013, 09:57:03 PM »
dang, would changing that resistor to a lower resistance value help, or does that not help due to this dual evaporator system?

Offline domain

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #23 on: March 02, 2013, 10:07:22 PM »
In theory, if you used a different thermister it should work. All lg themisters are interchangeable, between their fridges. They are different between fridge and freezer however. I would wanna know the frost pattern in fridge side. Freezer doing ok? :D

Offline agreif11

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #24 on: March 02, 2013, 10:18:16 PM »
Yeah, freezer is great, set at -4 and sets is about -8F air temp.  Is the thermister something easily changed?  ie, if i called the service tech back and repeated what you said, he shoudl know what I am talking about, right?  Is the thermistor in the fridge somewhere or on the PCB in the back of the fridge?

Offline domain

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #25 on: March 02, 2013, 10:20:12 PM »
In the fridge wired back to the main. Give it a few days and call back and let THEM do their diagnosis. Me on a interwebz machine means nothing to the tech in the home.

Offline agreif11

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #26 on: March 02, 2013, 10:26:33 PM »
Well the last time the guy came out he just replaced the main PCB for the fridge and made it sound like there wasn't more he thought he could do if I continued to have the problem....but I'll call em again and see if they can do something on Monday.  Once they change that, shouldn't take very long for the air temp to get down to that temperature setting, right?  Assuming we're not opening the doors frequently.

Offline domain

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #27 on: March 02, 2013, 11:36:28 PM »
Give it 24 hours for temp change. Thats the standard. The new main pcbs actually adapt to the conditions over a few weeks time. That is what I am told per lg.  :D

Offline agreif11

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #28 on: March 03, 2013, 01:42:00 PM »
Ok, freezer is rocking out, right at teh -6F setting we've got it at.  So maybe thermistor or fan.  If you have a manual showing where those are and how to check, I'll pull out the multimeter myself and try to troubleshoot.

Offline domain

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Re: LG French Door (LFX31925) Freezer Cold, Fridge not
« Reply #29 on: March 03, 2013, 01:44:25 PM »
If it is under the manufacture warranty i would stray away from that. Otherwise have at it. Your unit WILL display a error code for the fresh food fan if not spinning. It has a tach wire. :D

 

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