EBR30299301 LG Refrigerator Main Control Board, No-Cool, Fan and Defrost Diagnosis for 30-Inch French Door Models
Your LG refrigerator is warm, the panel inside the fresh food section is showing a two-letter code, or the unit runs without ever getting cold. Part EBR30299301 is the LG refrigerator main control board, catalogued by the manufacturer as a PCB assembly, main, and it is the board fitted to LG's 30-inch French door bottom-freezer family, the non-dispenser cabinets sold as the LFC22770, LFCS22520, LFNS22520 and LRFNS2200 series. This guide helps you decide whether the board is genuinely at fault, or whether the cabinet is reporting a failure somewhere else.
What Are the Symptoms of a Failing EBR30299301 Main Control Board?
Commonly reported symptoms associated with a failing EBR30299301 LG main control board include no cooling in either compartment, the evaporator or condenser fan never starting, defrost never running with frost packing the rear freezer panel, a dark or unresponsive interior control panel, and repeating two-letter fault codes. These patterns are reported across LG's 30-inch French door bottom-freezer cabinets that use this board.
This platform puts its controls inside the fresh food compartment rather than on the door, so the first sign of trouble is usually a temperature problem rather than a dead dispenser. If you are seeing several of the following at once, the main control board is a reasonable area to investigate after the simpler parts have been ruled out.
- Both compartments warm while the cabinet appears to be running normally
- Evaporator or condenser fan never spins, or starts and stops in short bursts
- Frost or solid ice packed behind the rear freezer panel, with defrost apparently never running
- Interior control panel dark, frozen, or ignoring button presses
- A two-letter fault code returns on the interior panel after a power reset
- Ice maker in the freezer stops filling or stops harvesting while the rest of the cabinet still works
- Cabinet runs continuously without pulling down to the set temperature
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Where Is the Part Number Printed on This LG Board? Watch the Video
The part number on an LG refrigerator main control board is printed on a paper or foil label on the board itself, usually along one edge or across a large component. On this platform the board sits behind a cover on the rear back plate of the cabinet, so verifying the number involves unplugging the refrigerator, pulling it out, and removing that cover before comparing the label to EBR30299301.
This short video walks through locating and reading the label on an appliance control board and confirming the number before the packaging is opened. The same approach applies to the EBR30299301. On this LG family the board is not visible from inside the cabinet, so plan on moving the refrigerator far enough forward to reach the rear cover comfortably.
Which LG Refrigerator Symptoms Actually Point at This Main Control Board?
On the LG 30-inch French door platform the main control board drives the compressor circuit, both brushless fans, the defrost heater relay, the stepping damper and the ice maker kit, and it reads five sensor inputs. Symptoms that knock out several of those systems at once point toward the board. Symptoms confined to one system usually point at that system's own component first.
Use the table below as a starting point rather than a verdict. The board reports faults it detects elsewhere, so a displayed code is frequently a report about another part rather than a confession about the board.
| Symptom | What It May Indicate | Recommended Next Step | Board? |
|---|---|---|---|
| Warm in both compartments, cabinet sounds like it is running | Compressor circuit not being driven, or the compressor is running without pumping | Confirm whether the condenser is warming up. A linear compressor that has lost its internal valve action runs quietly and draws normal current while producing no cooling, which looks very much like a dead board. Pressure testing by a qualified technician is what separates the two. | Compressor first |
| Neither fan ever starts | Brushless fan feedback missing, or no drive voltage leaving the board | Check both fan connectors at the board and confirm the fans are not iced in. If both fans are free, correctly connected, and still receive nothing, board output becomes a commonly reported cause. | Common |
| Frost packed behind the rear freezer panel | Defrost cycle not completing | Test the defrost heater, the defrost fuse and the defrost sensor first. This platform flags a defrost fault only when the defrost sensor fails to reach its target within about an hour, so a cold heater circuit is the more common finding. | Check defrost parts first |
| Interior control panel dark or unresponsive | Display assembly, its harness, or main board communication | Reseat the display harness and confirm the panel has power. A communication fault is raised when the two boards stop talking, and either end plus the harness between them can be responsible. | Board or display |
| One compartment warm, the other correct | Sensor reading out of range, or the stepping damper stuck | Measure the compartment sensors against the resistance values in your service documentation and check that the damper moves. Uneven cooling is far more often a sensor or damper issue than a board issue. | Check sensors and damper |
| Ice maker stops while everything else works | Ice maker kit, its harness, or water supply | Confirm water supply, the ice maker switch position and the kit's own harness. A fault reported against the ice maker kit is normally about the kit, not the main board. | Rarely the board |
| Cabinet completely dead, no panel, no fans, no compressor | No power reaching or leaving the board | Confirm the outlet and the cord first, then check that supply voltage is arriving at the board. Power confirmed in with nothing at all coming out is one of the stronger board indications on this platform. | Common |
What Do the E Codes on the Interior Panel Tell You About This Board?
LG's 30-inch French door platform shows two-character fault codes on the interior control panel, paired with an E. The published set for this family covers freezer, refrigerator, room temperature, defrost and icing sensor faults, a defrost completion fault, freezer and condenser fan faults, an ice maker kit fault, and a board-to-board communication fault. Only a few of them point at the main control board itself.
While a code is displayed the cabinet locks out its normal button functions, and stored codes clear once the underlying fault is gone. Codes are shown with an E next to a two-character identifier, and the letters are what matter. The grouping below separates the codes that commonly implicate this board from the codes that are the board correctly reporting a fault somewhere else.
| Code on the Panel | What It May Indicate | Is It This Board? |
|---|---|---|
| CO | Communication fault between the main control board and the interior display assembly. The two boards have stopped exchanging data. Inspect the harness and both connectors first, since a chafed or unseated harness produces the identical code. | Board or harness |
| FF | Freezer fan fault, raised when the brushless fan's feedback signal does not return as expected. The board retries the fan several times before it posts the code. Ice around the fan blade and a failed fan motor are the usual findings, with board drive a distant third. | Usually the fan |
| CF | Condenser fan fault, raised the same way as the freezer fan fault. Check the fan in the machine compartment for debris and confirm the connector is seated before considering the board. | Usually the fan |
| dH | Defrost fault, posted when the defrost sensor does not reach its target temperature within roughly an hour of the heater being commanded on. The heater, the thermal fuse, the drain and the defrost sensor all sit ahead of the board on this one. | Usually defrost parts |
| FS / rS | Freezer or refrigerator compartment sensor circuit reading short or open. Measure the sensor at the board connector against your documentation's resistance table. A sensor that reads correctly at the board while the code persists moves suspicion onto the board input. | Sensor first, then board |
| dS / IS | Defrost sensor or icing sensor circuit reading short or open. Both are simple thermistors and both are far more likely to fail than the board input that reads them. | Sensor first, then board |
| rt | Room temperature sensor circuit fault. This sensor influences defrost and damper timing, so an open circuit here can cause odd cycling behaviour without any obvious cooling failure. | Sensor first, then board |
| It | Ice maker kit fault covering the kit's motor, gear train and position sensing. This is a report about the ice maker assembly rather than about the main control board. | Not the board |
Will the EBR30299301 Fix Your Refrigerator? What to Rule Out First
The EBR30299301 is a reasonable candidate when both fans stay dead with connectors confirmed, when the cabinet is completely unresponsive with supply voltage present at the board, or when a communication fault survives a known good harness. It is a poor candidate when the compressor runs quietly without cooling, when a single fan or sensor is implicated, or when frost is building with an untested defrost circuit.
This is the single most important rule-out on this platform. These cabinets use a linear compressor, and its best known failure mode is silent. The motor keeps running and draws close to normal current while the compressor stops moving refrigerant, so the cabinet sounds healthy and stays warm. That presentation is easy to mistake for a board that is no longer driving the compressor, and replacing the board changes nothing. Before ordering any electronics, satisfy yourself that the sealed system is actually pumping.
This platform reads five separate thermistors, and a sensor drifting out of range makes the board respond incorrectly without ever posting a code. Uneven cooling, a compartment that overshoots, or defrost timing that never looks right are far more often sensor problems than board problems. Sensors are inexpensive and testable, and the published resistance tables for this family make them straightforward to check.
Both the freezer and condenser fans on this platform report back to the board, and the board posts a fan fault only after several retries. A fan blade frozen into ice, a motor with worn bearings, or a harness rubbed through behind the liner all produce the same code as a genuine board output failure. Because the board retries before flagging anything, intermittent fan faults are especially easy to misattribute.
Frost building up behind the rear freezer panel is one of the most common complaints on this family, and the defrost circuit sits ahead of the board every time. The board only knows that the defrost sensor failed to reach temperature, so a heater that has gone open, a blown thermal fuse, or a drain iced solid all read to the control as a defrost problem. Replacing the board with an open heater still in place resolves nothing.
A communication fault involves two boards and the wiring between them, and the display assembly on this platform is a separate serviceable part. A dark or unresponsive panel is often the display assembly or a connector that has worked loose during a cleaning or a move, rather than the main board at the back of the cabinet.
How Hard Is It to Replace the EBR30299301, and Where Is the Board?
On this LG platform the main control board lives under a cover on the rear back plate of the cabinet, held by a small number of screws. Replacement is a moderate job that most confident do-it-yourselfers finish in about 30 to 45 minutes once the refrigerator has been pulled out from the wall, using a Phillips screwdriver and a nut driver.
The board is not reachable from inside the cabinet. You will need to unplug the refrigerator and pull it far enough from the wall to work comfortably at the back, then remove the screws holding the board cover on the rear back plate and lift the cover away. Photograph every connector before anything is disconnected, because this board carries a large number of similar looking plugs and the harnesses are not all keyed differently. Allow extra time for moving the appliance rather than for the swap itself. If working behind a large appliance or with electronic assemblies is not something you are comfortable with, a qualified appliance technician is the right call.
Does the EBR30299301 Fit Your LG Refrigerator? Compatibility Check
To confirm the EBR30299301 fits, read the label on the board behind the rear cover of your refrigerator and match it to EBR30299301 exactly. Model lookups are a useful first pass, but LG fitted closely related boards to neighbouring cabinets in this family, and the suffix digits are what separate them, so the label is the reliable check.
Model Number Check
Enter your refrigerator's model number to check it against our EBR30299301 compatibility records. Not found? Use the buttons below to reach our team directly.
Model lookups are a good starting point, but LG built more than one board into this French door family and the numbers differ only in the last two digits. The label on your existing board is the reliable confirmation. Click the image to zoom in.
Which LG Refrigerator Models Use the EBR30299301 Main Control Board?
The EBR30299301 is listed for LG's 30-inch French door bottom-freezer family without a through-door dispenser, covering the LFC22770ST, the LFCS22520S and LFCS22520D, the LFNS22520S and LFNS22520D, and the LRFNS2200S, LRFNS2200W and LRFNS2200D, along with GM-B223 series export variants. Always verify by matching the label on your existing board before ordering.
LFC22770 Series, 30-Inch French Door
LFCS22520 Series
LFNS22520 Series
LRFNS2200 Series
GM-B223 Series, Export and International Variants
This list reflects cross-reference data compiled from several parts catalogues and is provided as general guidance only. The GM-B223 entries are export variants and appear less consistently across catalogues than the North American models, so treat them as a starting point. Closely related cabinets in the same family, including the LFDS22520S and LCFS22EXS, are listed against a different board in this series, so a model that is not shown here is not automatically compatible. Always confirm by matching the label on your existing board, and contact our team if your model is not listed or you are unsure.
How Is the EBR30299301 Restored to Spec? The FailSafe Precision Protocol
Every EBR30299301 sold by Appliance Pro USA goes through the FailSafe Precision Protocol, a proprietary 4-step process covering failure pattern analysis, precision diagnostic testing, proactive component replacement using equal or higher-rated parts, and final certification before the board ships.
FailSafe Precision Protocol
Failure Pattern Analysis
Known failure patterns for the EBR30299301 are mapped before any board enters the process, so we know exactly which components to focus on for this specific board type.
Precision Diagnostic Testing
Multi-point diagnostic testing identifies faults and confirms overall board condition. Boards that do not pass diagnostic testing do not advance.
Proactive Component Replacement
Components identified through failure pattern analysis as common weak points are replaced using equal or higher-rated parts, before the board is cleared to ship.
Final Certification
Certified to meet or exceed original LG factory specifications. Tamper-evident hologram applied. Anti-static packaged and sealed for shipping.
EBR30299301 Specifications and Cross-Reference Part Numbers
The EBR30299301 is an LG refrigerator main control board, catalogued by the manufacturer as a PCB assembly, main. It mounts under a cover on the rear back plate of the cabinet and controls the compressor circuit, both brushless fans, defrost, the stepping damper, the ice maker kit and five sensor inputs. It is referenced in parts catalogues as AP6986091, PS12750420 and EAP12750420, and Appliance Pro USA supplies FailSafe Certified units with a 1-year warranty (registration required).
| Manufacturer Part Number | EBR30299301 |
| Manufacturer Description | PCB assembly, main |
| Board Type | Main control board (compressor circuit, brushless freezer and condenser fans, defrost heater relay, stepping damper, ice maker kit, sensor inputs) |
| Appliance Platform | LG 30-inch French door bottom-freezer refrigerators without a through-door dispenser, interior control panel |
| Board Location | Under a screwed cover on the rear back plate of the cabinet; not accessible from inside the refrigerator |
| Onboard Diagnostics | Service documentation for this platform describes a test switch on the main board itself that steps the cabinet through forced compressor and fan operation, damper movement and defrost heater operation. Fault codes are shown on the interior control panel rather than by a board LED. |
| Sensor Inputs Read | Freezer, refrigerator, defrost, icing and room temperature sensors |
| Companion Assemblies | Separate interior display assembly; ice maker kit; the compressor and its drive are supplied as a compressor set |
| Sibling Part Number | EBR30299302 is a closely related board in the same series listed against different cabinets in this family. No catalogue reviewed lists the two as interchangeable, so match your label exactly. |
| Catalogue Cross-References | AP6986091, PS12750420, EAP12750420, ALG54678, PD00071485 |
| Supersession Status | No superseding LG service number was found in the catalogues reviewed; EBR30299301 is still listed as the current number for these cabinets. |
| APU Status | FailSafe Certified, 1-year warranty (registration required), 30-day returns, same-day shipping* |
Is It Worth Repairing This Refrigerator? What the EBR30299301 Costs vs Your Alternatives
Replacing the EBR30299301 main control board is generally far less expensive than a comparable new 30-inch French door refrigerator, which commonly runs $1,200 or more, or a technician service call, which commonly runs $300 to $500 including parts. Figures are general estimates and vary by region and provider.
What your options typically cost
Refrigerator Still Not Cooling After Replacing the EBR30299301? Start Here
The most commonly reported reasons an LG refrigerator still does not cool right after a main control board replacement are a connector that looks seated but is not latched, skipping the full power-off reset the board needs to initialise, judging the result before the cabinet has had time to pull down, and an underlying sealed-system fault that was never the board in the first place.
Complete a full power-off reset
Leave the refrigerator unplugged for a full five minutes after the board is in and the cover is back on, then restore power. Service documentation for this platform specifically calls for unplugging and plugging back in after any forced test sequence, and a board that has not been through a clean power cycle can behave as though it is faulty.
Check every connector, including the display harness
This board carries a large number of similar looking plugs, and a connector pushed home without latching produces exactly the original symptoms. Work through each one with your photographs, press until it clicks, and do not forget the harness running forward to the interior display assembly.
Give the cabinet time to pull down
A refrigerator that has been open and unpowered needs several hours to reach operating temperature, and the ice maker can take considerably longer before it produces its first harvest. Some clicking and panel activity on first power up is normal while the control initialises.
Re-check the compressor before assuming the board is faulty
If the cabinet still will not cool with a new board fitted, the most commonly reported explanation on this platform is that the sealed system was the problem all along. A linear compressor that runs quietly without pumping refrigerant produces a warm cabinet with no error code and no unusual noise, and no control board can fix that.
Handle the board by its edges and use the install gloves
Static discharge is a commonly reported cause of damage to replacement electronics during installation. Touch the bare metal of the cabinet before picking the board up, wear the install gloves included in the box, and hold the board by its edges only.
Still not working after all of the above?
Contact our team before returning anything. A brief conversation resolves the majority of post-install situations. We stand behind every board we sell and are here to help you get the result you need.
Which Other Parts Should You Check on This LG French Door Platform?
Components that commonly fail alongside or instead of the EBR30299301 include the compartment and defrost sensors, the brushless freezer and condenser fan motors, the defrost heater and its thermal fuse, the stepping damper, the interior display assembly and the ice maker kit. Each can produce symptoms that resemble a main control board fault.
Share your model number and a photo of your existing board's sticker. Our team will help confirm the right part before you spend a dollar. No pressure, no obligation.
Why Buy the EBR30299301 from Appliance Pro USA?
Appliance Pro USA supplies the EBR30299301 as a genuine OEM board restored through the FailSafe Precision Protocol to meet or exceed OEM specifications, backed by a 1-year warranty (registration required), a 30-day return policy, free priority shipping, and same-day shipping on orders placed before 4 PM EST, Monday through Friday.
At Appliance Pro USA, we specialize in high-quality reconditioned replacement control boards, professionally inspected and tested to meet or exceed OEM specifications. Every board we sell undergoes our FailSafe Precision Protocol, meaning components identified through failure pattern analysis as common weak points are replaced proactively using equal or higher-rated parts before the board ever ships to you. With a replacement board from Appliance Pro USA, you're getting a board that's been evaluated and restored to reliable working condition, backed by our 1-year limited warranty (registration required) and 30-day return policy, so you can order with complete confidence.
We offer free priority shipping on every order, and orders placed before 4 PM EST ship same day, Monday through Friday, excluding holidays and scheduled closures. Whether you're a homeowner tackling this repair yourself or a professional technician who needs a reliable source, we're here to help you get the right part and get the job done right the first time.
Not sure this is your board? Send us a photo of your original board's part number sticker and we'll confirm before you buy. Reach us at info@applianceprousa.com
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EBR30299301 LG Refrigerator Main Control Board, Frequently Asked Questions
Common questions about the EBR30299301 cover how it differs from the closely numbered EBR30299302, how to run a diagnostic on a cabinet with no dispenser display, whether a warm refrigerator with no fault code points at the board, what a fan or sensor code really indicates, and what to do when a new board appears to change nothing.
My board reads EBR30299301 but catalogues also show an EBR30299302. Are they interchangeable?
Treat them as different parts. Both are main boards in the same LG series and both are described by the manufacturer as a PCB assembly, main, but the catalogues reviewed list them against different cabinets in this French door family, and none of them lists either number as a substitute for the other. Boards this close in number typically differ in firmware or in which loads they are configured to drive, and a board that physically fits is not necessarily a board that behaves correctly. Read the last two digits on your existing label and order to match exactly. If the label is damaged or unreadable, send our team a photograph of the board and your model number before ordering.
There is no display on the door of my refrigerator. How do I run any kind of diagnostic on it?
Two places. Fault codes appear on the control panel inside the fresh food compartment, next to an E, and while a code is showing the panel will ignore normal button presses. Separately, service documentation for this platform describes a test switch on the main board itself that steps the cabinet through forced compressor and fan operation, then damper movement, then defrost heater operation, with a further press returning it to normal. That makes this board unusual: it is both the part under suspicion and the part that runs the test. Follow the procedure written for your specific model, since entry steps vary across LG platforms, and expect to unplug and restore power afterwards.
The refrigerator runs constantly and never gets cold, but there is no fault code at all. Is that this board?
It can be, but on this platform it is more often the sealed system. These cabinets use a linear compressor whose best known failure mode is silent: the motor keeps running and sounds completely normal while the compressor stops moving refrigerant. There is nothing electrical for the control to detect, so no code is posted, and the presentation looks identical to a board that has stopped commanding cooling. The quick field check is whether the condenser and discharge line warm up after the compressor has run for several minutes. Cold condenser with a running compressor is a sealed-system finding, and a new board will not change it.
I have a fan or sensor code on the panel. Does that count as a board failure?
Usually not. The board raises those codes about other components, and on the fan codes it retries several times before posting anything, so an intermittent fan or an iced blade will eventually be flagged even though the board is fine. The sensor codes describe a circuit reading short or open, which covers the thermistor, its harness and its connector as well as the board input. The honest sequence is to test the named component at the board connector first. Only when the component measures correctly at the board and the code still returns does the board input become the reasonable suspect.
I fitted a new board, went through the forced test sequence, and nothing changed. What did I miss?
Work through four things in order. First, complete a full five minute power-off reset, since the documentation for this platform calls for unplugging and restoring power after any forced test and a board that has not seen a clean power cycle can look faulty. Second, go back over every connector with your installation photographs, including the harness running forward to the interior display, because a plug that is seated but not latched reproduces the original symptoms exactly. Third, give the cabinet several hours to pull down before judging anything. Fourth, revisit the compressor, because a sealed-system fault that was never the board in the first place is the most commonly reported reason a correct board appears to fix nothing.
Where Can You Read More About Refrigerator Control Boards?
These Appliance Pro USA Help Center guides explain what a refrigerator main control board does, why control boards fail, how to identify the right board from its part number, and what to check when an appliance does not work immediately after a board replacement. They support the EBR30299301 diagnosis and installation steps on this page.
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