1PCS Nidec U92C12MS1B3-52 Samsung Refrigerator Fan Motor DA81-06013A

Nidec · Refrigerator Fan Motor · Samsung Compatible · DA81-06013A · In stock

What Is the Nidec U92C12MS1B3-52 Refrigerator Fan Motor?

The Nidec U92C12MS1B3-52 (Samsung part number DA81-06013A) is a DC evaporator fan motor used inside Samsung refrigerators. This fan circulates cold air from the evaporator coil through the fridge and freezer compartments. Without it, the compressor runs and the evaporator gets cold, but that cold air never reaches your food — the fridge stays warm while the evaporator turns into a block of ice. Nidec is a Japanese precision motor manufacturer and a Tier-1 supplier to Samsung and other major appliance brands.

In short: The internal circulation fan that pushes cold air from the freezer evaporator into the fridge section — if your Samsung fridge is warm but the freezer is cold (or vice versa), or you hear an unusual noise from behind the back panel, this motor is the prime suspect.

Diagnosing Refrigerator Fan Problems

1. Is It the Fan Motor or the Control Board?

If the fan does not spin at all, the problem could be the motor itself OR the main control board not sending voltage to the motor. With the fridge powered on and the door switch held closed (so the fridge thinks the door is shut), measure DC voltage at the fan motor connector on the control board. You should see the fan's rated voltage (often 12V DC). If voltage is present but the fan does not spin, the motor has failed. If no voltage is present at the board, the control board has a failed fan driver circuit (often a burned MOSFET or relay). Replacing the motor in that case will not fix the problem.

2. Noise Diagnosis: Grinding, Clicking, or Squealing

A grinding noise usually means the fan blades are hitting ice buildup — the evaporator may be frosting over due to a failed defrost system (heater or thermostat), not a bad fan motor. A clicking or ticking sound often means a cracked fan blade or a blade that has slipped on the motor shaft and is rubbing against the housing. A high-pitched squeal that changes pitch is a dry or failing bearing — this is a genuine motor failure and the fan should be replaced before it seizes completely and causes food spoilage. A buzzing or humming sound with no blade rotation suggests the motor is seized and the winding is energized but cannot turn.

3. Blade Orientation and Airflow Direction

When removing the old fan, note which direction the blades face and which way the air blows. Installing the replacement fan flipped 180 degrees reverses the airflow direction, which disrupts the designed air circulation pattern in the refrigerator. Take a photo before disassembly. The motor connector is usually polarized (keyed) so it cannot be plugged in backward, but the physical mounting orientation of the motor and blade assembly is up to you to get right.

Key Specifications

Frequently Asked Questions

How do I access this fan to replace it inside my Samsung refrigerator?

The evaporator fan is located behind the back panel inside the freezer compartment. Unplug the refrigerator first. Remove all shelves and drawers from the freezer section, then remove the screws securing the rear evaporator cover panel (usually 4-8 screws). The fan assembly is mounted to the evaporator housing. Disconnect the wire connector (it may have a release tab — squeeze to release, do not pull on the wires), remove the mounting screws, and swap the motor. The whole job takes 30-60 minutes for a first-timer. Reassemble carefully — the evaporator cover must seal properly against the rear wall or air will bypass the coil and cooling performance will suffer.

The new fan is quieter than the old one — is that normal or did I get a different spec?

A new fan will almost always be quieter than a worn original. Over years of operation, bearing lubricant dries out, microscopic debris accumulates on the blades causing imbalance, and the motor windings may develop slight shorts that cause irregular torque pulses — all of which increase noise. The new fan should be nearly inaudible from outside the closed refrigerator. If it is noticeably louder than expected, check that the mounting screws are snug (but not overtightened — the motor housing can crack) and that no wiring is touching the fan blades. Also confirm the blades are not rubbing against ice buildup on the evaporator cover.

Can I use this fan motor to replace a different Samsung part number?

This motor replaces DA81-06013A. Samsung uses multiple fan motor part numbers across different refrigerator models, and while some are physically interchangeable (same mounting pattern, same connector, same voltage), others differ in RPM, blade diameter, or rotation direction. Using the wrong motor can result in poor cooling performance even though the fan spins. Cross-reference your refrigerator's full model number (found on a sticker inside the fridge section) against the Samsung parts catalog to confirm DA81-06013A is the correct replacement for your specific unit. Send us your fridge model number if you need help verifying.

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