What Is the EBR86093735 LG Refrigerator Main Control Board Replacement?
The EBR86093735 is the genuine OEM main control board for LG bottom-mount refrigerators. It mounts inside the cabinet near the compressor compartment, usually behind a rear access panel, and it's this replacement control board that runs the compressor, manages defrost timing, and handles temperature regulation for the unit. FailSafe Certified and backed by a 1-year warranty from Appliance Pro USA.
You may see this board listed under AP7009941, OEM21029832, or SJ-EBR86093735 - these are all the same board, just cross-referenced under different distributor numbers.
What Does the EBR86093735 Fix on a LG Refrigerator?
If your LG refrigerator is showing any of these problems, a failing main control board is a common cause:
- Refrigerator not cooling like it should
- No power - the unit won't turn on at all
- Temperature control that's erratic or just plain wrong
- Compressor won't run, or it cycles on and off at random
- Frost building up because the defrost cycle isn't working
- Control panel or display that's gone unresponsive
These symptoms point to the refrigerator control board as the most likely cause - but appliances are complex systems, and the same symptoms can occasionally stem from a sensor, switch, wiring harness, or motor issue. If a technician has identified the control board, or you've ruled out those components yourself, this board is your fix. When in doubt, contact us before you order - we're happy to walk you through some troubleshooting, and a photo of your board is usually all we need. A diagnosis from a local appliance technician works too.
How Do I Know If This Is the Right Board for My Refrigerator?
Check the sticker on your existing board before you order - it's the only way to be sure. Unplug the refrigerator, pull it away from the wall, and remove the rear access panel to find the board. If the sticker reads EBR86093735, AP7009941, OEM21029832, or SJ-EBR86093735, this is the correct replacement. Your LG refrigerator part number is on the sticker on the original board - look for the EBR or CSP prefix.
Other part numbers used for this board: AP7009941, OEM21029832, SJ-EBR86093735. Retailers and parts catalogs list the same board under these numbers.
Not sure? Send us a photo of your board and its sticker before you order and we'll verify it for free - same business day.
Compatible Refrigerator Models
This board is confirmed to fit the following LG refrigerator models:
| Confirmed LG models |
| LRMVS2806D |
LRMVS2806S |
|
Additional LG models may also use this board - send us your model number and we will confirm it.
| Also reported to fit - verify by the label on your board |
| GR-X28ANKYX |
GR-X28ANSYX |
|
Reported fit is general reference material - confirm by the part number on your board's sticker before ordering.
This model list is for reference only. LG may change boards between production runs, so two appliances with the same model number can use different boards. Always order by the part number printed on your original board - it is the only identifier that decides.
Genuine OEM - FailSafe Certified™ Reconditioned
Every EBR86093735 board from Appliance Pro USA is a genuine OEM LG board restored to reliable working condition through the FailSafe Precision Protocol™, our 4-step recertification process built around what actually fails on this board:
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Failure Pattern Analysis - We've mapped the failure signatures specific to this board, identifying which components degrade and fail over time.
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Targeted Component Replacement - The components this board is known to lose are replaced before they get the chance to fail.
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Proactive Rebuild Standard - Known high-failure components are replaced with new parts on every board, regardless of whether they show a problem yet. Degraded parts don't ship.
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Final Certification - Every board is tested and certified to our internal FailSafe Precision Protocol standard for function and lifespan before it ships.
Key Features
- Genuine OEM LG main control board - not an aftermarket copy
- Controls compressor, defrost cycle, and temperature regulation
- Direct fit replacement, no modification needed
- Minor cosmetic wear may be present due to prior installation - it does not affect performance
Board Type and Function
This board acts as the central brain for the refrigerator's cooling system. It tells the compressor when to run, manages the defrost heater on a timed cycle to keep the evaporator coils clear of frost, and reads temperature sensor input to keep the fridge and freezer compartments holding steady. When this board fails, the whole cooling system loses coordination - the compressor may stop responding, defrost may quit firing, or the unit may just go dead.
Common LG Refrigerator Error Codes
If your LG refrigerator is displaying an error code, the table below describes what it typically indicates. Codes marked ★ are most directly associated with main control board failure. These are general LG codes and can vary by your exact model. Always confirm the exact meaning in your model's owner's manual or service guide before ordering any part.
| Code |
What It Means |
| ★ CO |
Communication failure between main control board and display board |
| ★ Er CF / CF |
Condenser fan feedback signal error - board not receiving fan confirmation signal |
| ★ 22 |
Compressor relay problem - board-managed compressor circuit fault |
| ★ dH |
Defrost cycle timed out - evaporator did not reach target temperature within 1 hour |
| Er FF |
Freezer evaporator fan failure - fan not circulating cold air in freezer |
| Er rF |
Refrigerator evaporator fan failure - fan not circulating air on fresh food side |
| Er FS |
Freezer temperature sensor failure |
| Er rS / r2 |
Refrigerator temperature sensor failure - upper (rS) or lower (r2) section |
| dS |
Defrost temperature sensor short or disconnection |
| Er IF / IS / It |
Ice maker fan (IF), temperature sensor (IS), or motor (It) failure |
| CH E / CL E |
Refrigerant leak detected - high-side (CH E) or low-side (CL E). Requires professional service |
| OF F |
Demo mode active - cooling disabled. Not an error. Deactivate via control panel hold sequence |
Error code definitions vary by LG model series. Always confirm the exact meaning in your refrigerator's owner's manual or service guide before purchasing any part.
★ = Most directly associated with main control board failure
How to Install a LG Refrigerator Main Control Board
Start by unplugging the refrigerator - don't skip this. Pull it out from the wall and remove the rear access panel, usually a handful of screws. Ground yourself before you touch the board to avoid static damage, then snap a photo of the wire harness layout before disconnecting anything. Pull the connectors and mounting screws to free the old board, set the new one in place, and reconnect everything exactly as it was in the photo. Reattach the panel and plug the unit back in - most people are done in under 30 minutes with a basic screwdriver. Give it a few hours to settle into its cycle before you decide whether the repair worked.
Shipping
Every board is physically in stock - no backorders, no drop shipping. Orders placed before 4:00 PM EST ship the same business day. Tracking provided on every order.
Warranty
Backed by a 1-year warranty from Appliance Pro USA (registration required - the card is in the box). If the board fails due to a defect within the warranty period, we'll repair or replace it at no charge (shipping fees may apply). Warranty coverage is determined at Appliance Pro USA's discretion. Boards that have been tampered with, or with the verification seal (hologram or tamper-evident sticker) removed or damaged, are not eligible for warranty coverage. Damage caused by improper installation, electrical surges, or physical damage is not covered.
Returns
Returns are accepted within 30 days of delivery. Boards that are unopened and uninstalled, in original condition with the verification seal (hologram or tamper-evident sticker) intact, qualify for a full refund. If the board has been opened or installed, contact us before sending it back with a photo of the board you received, the reason for the return, and a photo of your original board's part-number label so we can verify fitment and approve the return. Boards returned used, altered, damaged, or with the verification seal missing may receive a partial refund in line with our return policy. Exchanges for the correct part are always available.
Not sure it's the board? Before you order, and before you return, contact us. We offer free troubleshooting help and can usually tell from a photo of your board and its symptoms whether this is the right part. Only a technician can fully diagnose your appliance.
