Samsung Refrigerator Error Code 43E — What It Means & How to Fix It

What Does This Error Mean?

Error code 43E on a Samsung refrigerator indicates a communication or connection problem between the ice maker and the main control board. The refrigerator is not able to properly communicate with the ice maker module. This often happens after a power outage, a software glitch, or a loose wire connector. Your ice maker will stop functioning until this error is cleared. The refrigerator and freezer continue to cool normally.

Affected Models

Samsung French Door Refrigerators
Samsung RF series models
Samsung Side-by-Side Refrigerators
Samsung Family Hub models with ice maker

Common Causes

A loose or disconnected wire harness between the ice maker and control board
A software glitch after a power outage or voltage spike
A failed ice maker module that can no longer communicate
Corrosion on the ice maker harness connector pins
A faulty main control board with a defective communication port

How to Fix It

Perform a hard reset. Unplug the refrigerator completely for 5-10 minutes, then plug it back in. Power outages and surges can cause communication errors that clear after a full power cycle.

This resolves 43E in a significant number of cases — always try it first.
Locate the ice maker inside the freezer compartment. Open the freezer and look at the ice maker — there is a wire harness that connects it to the refrigerator's main harness. Make sure this connector is firmly seated.

The connector can work loose over time from vibration or from someone bumping the ice maker when removing the ice bin.
Remove the ice maker from its mounting bracket (usually 2-3 screws) and carefully disconnect the wire harness. Inspect the pins for any sign of corrosion (green or white residue). Clean with electrical contact cleaner and reconnect firmly.

Even minor corrosion on connector pins can interrupt the communication signal.
Try replacing the ice maker module if the connector is clean and the reset did not work. The ice maker module is the complete ice maker assembly. It is available as a replacement part for $80-$150 depending on the model.

Samsung ice makers are often sold as a complete assembly, not as individual components.
If a new ice maker does not resolve the 43E code, the main control board may have a faulty communication output. This is the most expensive repair — confirm it is the board before purchasing one.

A technician with Samsung diagnostic software can confirm control board faults quickly.

When to Call a Professional

If a reset and connector inspection do not clear 43E, the ice maker module or control board may need testing. A Samsung-authorized technician can connect a diagnostic tool to determine which component has failed. Expect $100-$250 for diagnosis and repair. Ice maker module replacement is straightforward; control board replacement is more expensive.

Frequently Asked Questions

Will removing the ice maker clear the 43E error?

On some Samsung models, you can disable the ice maker from the settings menu. If the ice maker is disabled or physically removed, the control board may stop expecting a signal from it. However, this is a workaround, not a fix. If you do not need ice, disabling it stops the error from bothering you — but the ice maker itself will not work.

Can a firmware update fix 43E?

Samsung Family Hub refrigerators receive over-the-air firmware updates. Occasionally, a firmware update fixes communication bugs that cause error codes like 43E. Check your SmartThings app or the Family Hub touchscreen for available updates. For non-Family Hub models, firmware updates are not available.

How much does it cost to fix 43E?

A hard reset is free. A replacement ice maker module runs $80-$150. A control board replacement costs $150-$400 depending on the model. A service call from Samsung or an authorized technician typically runs $100-$250 for diagnosis and a common repair.