Samsung Washer Error Code RC — What It Means & How to Fix It

What Does This Error Mean?

The RC error on a Samsung washer indicates a problem with the reed switch or the door latch reed sensor. The reed switch tells the washer whether the drum lid or door is safely closed before the cycle begins. When this sensor fails or has a poor connection, the washer stops mid-cycle or refuses to start. You may notice the machine pauses unexpectedly, or the door lock light blinks repeatedly.

Affected Models

Samsung top-load washers WA40J3000AW
WA45H7000AW
WA50M7450AW
WA54R7200AW
Most Samsung top-load models 2015 and newer

Common Causes

Reed switch inside the lid assembly has failed and no longer detects the lid magnet
Magnetic striker on the lid is cracked, missing, or knocked out of alignment
Wiring harness to the reed switch is damaged or has a loose connector
Control board is not receiving the reed switch signal correctly
Water damage or excessive moisture has corroded the reed switch contacts

How to Fix It

Unplug the washer from the wall before doing any inspection. Safety first — always disconnect power before touching internal parts.

The lid switch area can have small components that are easy to drop. Work on a clean, flat surface.
Open the lid and look at the underside of the lid and the top of the washer cabinet. Find the small plastic striker or magnet that sits in the lid. Check that it is not cracked, broken off, or bent out of position.

The reed switch responds to the magnet in the striker. If the striker is missing or misaligned, the switch never detects the lid as closed.
Plug the washer back in and slowly close the lid. Listen for a click and watch whether the door lock indicator lights up. If there is no click or light, the reed switch is not detecting the lid.

On some models you can press down on the lid slightly past the normal closing point to test if a weak lid spring is preventing full contact.
Check the wiring connector on the reed switch. It will be inside the washer top panel. Unplug and replug the connector to ensure a firm connection.

A loose connector is a quick fix. If the connector feels firm but the error persists, the switch itself has likely failed.
Replace the reed switch assembly if the striker is intact and wiring is secure. The replacement part is available from Samsung or appliance parts suppliers. Clear the error by unplugging for 60 seconds and reconnecting power.

Replacement lid switches for Samsung top-load washers typically cost $15 to $40 for the part.

When to Call a Professional

If the lid striker is intact and wiring looks fine, the reed switch assembly likely needs replacement. This repair involves disassembling the top panel of the washer. A Samsung-certified technician can complete the repair in under an hour. Expect $100 to $200 for parts and labor.

Frequently Asked Questions

What is a reed switch?

A reed switch is a small electrical switch activated by a magnet. Inside your washer lid there is a tiny magnet. When you close the lid, that magnet passes near the reed switch, which snaps closed and tells the washer the lid is shut. It is a very reliable mechanism, but it can fail after years of use.

Can I bypass the RC reed switch to finish my laundry?

Bypassing the lid safety switch is dangerous and not recommended. The switch prevents the drum from spinning with the lid open. Bypass kits exist but create a serious safety hazard — especially with children nearby. Always replace the faulty switch rather than bypassing it.

Is RC a common Samsung washer error?

It is less common than codes like E3 or 4E, but it does occur on older Samsung top-load washers. The reed switch usually lasts the life of the machine, but hard water, moisture, and repeated impacts on the lid can shorten its lifespan. Replacement is inexpensive and straightforward.