DA31-00146H Samsung Evaporator & Ice Maker Fan Motor – What This Part Fixes
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Understanding the Problem
What this part is and why it matters: The DA31-00146H is the evaporator / ice maker cooling fan motor assembly used in many Samsung refrigerators. It circulates cold air across the freezer evaporator and toward the ice maker, helping the freezer maintain temperature and the ice maker keep water frozen properly. Step-by-step diagnostic and repair instructions: 1) Safety first: unplug the refrigerator or switch off its dedicated breaker before you begin. If the freezer has a lot of frost or ice, allow it to partially defrost so covers can be removed without damage. 2) Access the fan: empty the freezer shelf area in front of the evaporator cover. Remove any shelf or bin blocking the evaporator cover. Unscrew and remove the evaporator cover/panel to expose the fan motor and blade. 3) Visual inspection: look for obvious obstruction (ice, broken blade, food debris) and for physical damage to the blade or motor. If the blade is cracked or chewed, replace the blade/motor assembly. 4) Manual spin test: with power still off, try spinning the fan blade by hand. It should spin freely and coast several seconds. If it’s stiff, gritty, or doesn’t spin, the motor bearings are likely bad or the shaft is frozen by ice. 5) Continuity/test with power on (diagnostic voltage test): restore power briefly (or use the fridge’s diagnostic mode) and observe whether the fan runs when the compressor runs. If you’re comfortable and experienced with live testing: back-power to the motor connector and measure for the expected voltage while compressor is running. If voltage is present but the motor doesn’t run, the motor is bad. If no voltage, suspect defrost board, main control board, or wiring. 6) Replace the motor: if the motor is failed, frozen, noisy, or the blade is damaged, replace the DA31-00146H assembly. Steps: a) Unplug the fridge again. b) Remove the evaporator cover and locate the fan motor (usually mounted near the evaporator coil/ice maker area). c) Disconnect the motor wiring harness — note connector orientation. d) Remove mounting screws or clips holding the motor and fan blade. e) Pull the motor assembly out (some models have the blade pressed onto the motor shaft; pull straight off). If the blade is separate, remove it first. f) Install the new motor: press the blade onto the shaft if needed, position the motor, secure with screws/clips, and reconnect the harness. g) Reinstall evaporator cover, shelves/bins, restore power, and test. Verify the fan runs and that the freezer and ice maker reach proper temperatures over the next several hours. 7) Confirm repair: a good motor will run quietly and continuously when the compressor is on, and temperatures should stabilize within a couple of hours. If cooling problems persist with a working fan, test the compressor, evaporator for frost patterns, and the defrost system. Safety note: Always disconnect power before opening the refrigerator panels. Be cautious when testing live voltages — if you are not experienced with electrical testing, hire a technician. Keep sharp edges and evaporator fins in mind when working inside the freezer.
Common Symptoms
Freezer not cooling properly, ice maker not producing/filling with ice, loud or unusual fan noise from freezer, fan blade not spinning, fridge running longer than normal.
Common Causes
- Motor bearings worn or shaft frozen due to ice buildup
- Fan blade damaged or obstructed by ice/debris
- Wiring harness or connector failure
- Control board/defrost system not supplying voltage to fan
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Helpful Repair Tip
With power off, spin the fan blade by hand—if it doesn't spin freely or feels gritty, replace the DA31-00146H. If it spins freely but won’t run when powered, check for voltage at the connector to decide between motor or control board failure.
Frequently Asked Questions
How long does replacement take and do I need a technician?
Most DIYers with basic hand tools can replace the DA31-00146H in 20–45 minutes. If you're comfortable removing interior panels and working safely around sharp metal and wiring, you can do it yourself. Call a technician if you’re not comfortable testing live voltage or if the problem may involve the main control board.
Can I run the refrigerator without the evaporator fan?
No — running without the evaporator fan will cause poor air circulation, uneven temperatures, slower cooling, and can lead to excessive frost or compressor overwork. Replace the fan quickly to avoid further damage or food loss.
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