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Customer Questions and Answers for Sub Pcb Assembly by Lg

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Manufacturer Part
4.89 (64)
By: Lg
Part Number: OEM14016027
Manufacturer Part Number: EBR64173902

This sub PCB assembly is an electronic control board used in select LG appliances. It manages signals and low-voltage power for a specific feature or module, helping restore normal operation when the original board becomes unresponsive or fails.

  • Provides low-voltage control for the designated function or user interface
  • Communicates with the main control to execute settings and cycles
  • Helps resolve symptoms such as unresponsive controls, blank/flickering display, intermittent operation, or related error codes
  • Supports reliable operation of the affected subsystem after replacement
What's included: 1 sub PCB assembly Install notes:
  • Disconnect power at the breaker; shut off gas/water if applicable
  • Use ESD protection and handle the board by the edges
  • Photograph wire locations; transfer connectors one at a time to avoid miswiring
  • Follow the service sheet for any required option-code entry, reset, or diagnostic check after installation

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Questions & Answers

For Lg Sub Pcb Assembly (Part Number: OEM14016027)

Bill for Model Number 795.71053.010

Hello, I have a malfunction with both the frig and freezer not cooling frig temp 56 and freezer 48 degrees. Compressor seems to be running continuously, all three fans are running and there is zero frost buildup on the evaporator. I have replaced the thermistor and temp sensor also the mainboard, not the PCB. The compressor is running at 100 degrees and the coil is at 74 degrees. Not sure if the other board should be replaced or maybe the control panel. I don't think the freon is low because there is no ice buildup anywhere.

1 Answer

Bill, it would be recommended that the condenser coils are inspected for dust build up as dust can cause this symptom. If the condenser coils are clean, then there is a sealed system failure based on the information provided.

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1 Answer

Suzie, There is a knock on sensor that would be the most likely cause for this issue. The part number for this would be ACQ88646104 and should be located at the bottom of the door.

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1 Answer

AJF, if your compressor is running you should have a frost pattern on the evaporator. It sounds like you have a sealed system issue, it is either low on freon or the compressor is failing.

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1 Answer

J, If the compressor is running but the unit is not cooling at all then this would be a sealed system issue in which you will need to have a service technician to repair.

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1 Answer

Hello Stillwater. You will need to check the compressor harness on the unit. If it is good, then the compressor will need to be replaced.

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1 Answer

David, Unfortunately we do not have a wiring diagram for the unit to be able to give voltage information for the unit. You will want to test the PCB sub assembly for proper power. With the compressor not getting power then it is most likely that the PCB Sub Assy EBR64173902 would be the issue with the unit.

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1 Answer

Hello Corry! Judging from the diagram the top board itself should be the main board EBR65002703. Unfortunately, we do not have any pictures available of each of the boards to help verify which part is actually smaller. If a board is purchased and it is incorrect we have a no hassle return policy, you can return the part at anytime. Here is our return policy link for you to view, thanks! http://www.appliancepartspros.com/customerservice/returns.aspx

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