84CSamsung · Refrigerator · Fridge

Samsung Refrigerator error code 84C

Compressor lock

Stop using it

Also written as 84, C84

Which models this applies to. This page covers the Samsung refrigerator codes.

What is specific to the Refrigerator platform

Two-digit codes here differ from the washer set, so a Samsung fridge code is never a Samsung washer code.

Your control board prints the code as text, for example F01 or EE3, so you read it off the display rather than counting blinks. The printed number is the fault itself, not a position in a table.

Quick answer

On Samsung Refrigerator (2000s onward), 84C is a fault. It means compressor lock. A first thing to check: Compressor windings failed open or shorted.

Applies to: Samsung Refrigerator; Samsung refrigerator codes · Refrigerator · 2000s onward
Type of code: Fault; Urgency: Stop using it
First safe check: Confirm the fans run when the compressor is called for, which separates a cooling air problem from a compressor problem.

Checked 2026-09-26

What 84C means on this model

The compressor failed to start, or started and tripped, and the control has locked it out to protect the sealed system. A locked compressor is the end of the line for that component, and a technician needs to pressure test the system before anything is replaced.

Symptoms you will notice

Cabinet is warm and nothing is cooling
Compressor clicks and stops, or hums without running
Code appears within seconds of the compressor being called for
Fans run normally but the cabinet stays warm

Common causes

The code tells you what the control detected, not which part failed. These are the causes we see most often, roughly in order of likelihood:

Compressor windings failed open or shorted
Sealed system lost refrigerant, so the compressor cannot develop the pressures it needs
Compressor seized mechanically
Compressor relay or the board output that starts it failed
Surging from a failing start capacitor or relay on an older fixed-speed model
Stator or rotor failure after a voltage event

What you can safely check

These are homeowner-level checks. None of them need you to open a live electrical compartment or work on gas.

Confirm the fans run when the compressor is called for, which separates a cooling air problem from a compressor problem.
Check the power cord, plug, and receptacle, since a compressor never starts on a supply fault without a code about the supply.
Listen at the rear for a start attempt: a click with no hum points at the relay or the board, a hum with no run points at the compressor or the system.

Do not do these

×Do not add refrigerant to a locked compressor without a pressure test and a recovery first. Blind charging into a sealed system is how a sealed system gets destroyed.
×Do not unplug the cabinet to stop the noise. Let the control complete its lockout delay, or the compressor will keep being called.
×Do not attempt a sealed system repair without proper recovery equipment and certification.

When to call a technician

Stop using the appliance and call today

This one is a safety limit, not a nuisance. The control is shutting the unit down to prevent damage or a hazard, and it will keep doing that until the underlying cause is fixed. Running it anyway risks the expensive failure it was designed to prevent.

If the appliance has stopped mid-cycle, is making a noise you have not heard before, or smells burnt, stop reading here and call. Those are symptoms of something the fault code does not describe well enough.

Not a homeowner job under any circumstances. The refrigerant, the recovery equipment, and the certification are all required.

What it costs to fix

Parts

Compressor $350 to $800. Start relay and capacitor $20 to $80. Sealed system recharge is labour plus refrigerant $250 to $600.

Labor

Three to five hours. A sealed system recharge is licensed work with recovery equipment.

DIY or technician