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Error code reference

Samsung Freezer Error Code 8

Compressor fan motor (COMP-FAN) restriction

Samsung codesSamsung freezer codes

Compressor fan motor (COMP-FAN) restriction - fan motor feedback signal defective, motor wire slipped out, or motor defective.

First step from the service manual

Check voltage between MAIN PCB CN74 #3 and #5, should be within 7V~12V.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What 8 means on a Samsung freezer

Error code 8 on a Samsung freezer indicates a fault in the compressor fan motor (COMP-FAN) circuit. This fan is responsible for circulating air across the condenser coils near the compressor compartment, and its proper operation is critical to maintaining adequate cooling performance. The control system monitors the fan motor's feedback signal continuously, and when that signal falls outside acceptable parameters or disappears entirely, the unit logs error code 8 and may reduce or suspend normal operation to prevent compressor damage.

The error has three primary root causes: a defective feedback signal from the motor, a wiring connection that has slipped loose at the motor or harness connector, or a failed motor itself. The feedback signal is typically a pulse-width or tachometer-type signal that the main PCB uses to confirm the motor is spinning at the correct speed. If the PCB receives no signal or an erratic one, it interprets this as a restriction or motor fault.

The first diagnostic step is to measure voltage between pins 3 and 5 on connector CN74 at the main PCB. This supply voltage should read within the 7V to 12V range. A reading outside this range points to a PCB output problem, while a correct voltage reading with a persistent fault shifts suspicion toward the motor wiring harness or the motor unit itself. Inspect the connector and wire routing for any signs of slippage, damage, or corrosion before condemning the motor.

Source: manufacturer service documentation.

Common causes of 8

  1. 01

    Loose or disconnected motor wiring

    Wiring / connection

    The wire harness connector at the compressor fan motor can vibrate loose over time. Inspect the connector at the motor and trace the harness back to CN74 on the main PCB, looking for any pins that have backed out or connections that feel loose.

  2. 02

    Defective fan motor feedback signal

    Part replacement

    The motor's internal feedback circuit may be sending an erratic or absent tachometer signal to the PCB even though the motor appears to run. This can be identified after confirming correct supply voltage at CN74 pins 3 and 5 (7V to 12V) and ruling out wiring issues.

  3. 03

    Failed compressor fan motor

    Part replacement

    The fan motor itself may have seized or burned out, causing no rotation and no feedback signal. Check whether the motor spins freely by hand and whether it attempts to start when powered.

  4. 04

    Main PCB not supplying correct voltage

    Part replacement

    If the voltage at CN74 pins 3 and 5 is outside the 7V to 12V range, the main PCB may not be providing adequate power to the fan motor circuit. This would prevent normal motor operation regardless of the motor's condition.

  5. 05

    Damaged or pinched wiring harness

    Wiring / connection

    Harness wires routed near the compressor compartment can be damaged by heat, sharp edges, or pinching during a previous service. Inspect the full length of the wire run for cuts, chafing, or melted insulation.

See the test procedure for each cause

Frequently asked questions about 8

What does 8 mean on a Samsung freezer?
Error code 8 on a Samsung freezer indicates a fault with the compressor fan motor (COMP-FAN). The main control board is detecting either an absent or defective feedback signal from the fan motor, a wiring connection that has come loose, or a motor that has failed. This fan circulates air across the compressor area, and the unit monitors its operation continuously to protect the compressor.
Can I fix error code 8 on my Samsung freezer myself?
Some causes of error code 8 are DIY-friendly. Checking the wire harness connector at the fan motor for a slipped or loose connection requires no special tools and should be the first physical inspection you perform. Voltage testing at CN74 pins 3 and 5 on the main PCB requires a multimeter and basic electrical knowledge. Replacing the fan motor is a moderate-difficulty repair, while replacing the main PCB is best left to a technician if you are not comfortable working with control electronics.
Is it safe to keep using my freezer while error code 8 is active?
Continuing to run the freezer with error code 8 active is not recommended. The compressor fan motor moves heat away from the compressor, and without it functioning correctly, the compressor can overheat and suffer damage. Food safety is also a concern if the unit is not maintaining proper temperatures. It is best to address the fault promptly and move perishables to another unit in the meantime.
How much does it cost to repair a Samsung freezer showing error code 8?
Repair costs vary depending on the root cause. If the issue is simply a loose wire connector, there is no parts cost and only your time. A replacement compressor fan motor typically costs in the range of $30 to $80 for the part. If the main PCB is at fault, parts alone can range from $100 to $250 or more. Adding professional labor will increase total costs by $75 to $150 or more depending on your location and the technician.
Will resetting my Samsung freezer clear error code 8?
A reset may temporarily clear the error code display, but it will not resolve the underlying hardware fault. If the fan motor wiring is loose, the motor has failed, or the PCB output voltage is incorrect, the code will return once the unit resumes normal operation and the control board re-checks the feedback signal. A reset is only useful as a step to confirm whether the fault is intermittent, not as a fix.

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