Frost Blocking Your Evaporator Coils? The Defrost Control Board Is the Fix.

When the defrost control board fails, frost accumulates unchecked on the evaporator coils until airflow is completely blocked — the freezer may still feel cold, but the refrigerator section warms up, food spoils, and the compressor runs continuously trying to compensate. The WPW10352689 is the genuine OEM defrost control board for Whirlpool refrigerators, managing defrost heater activation, evaporator temperature monitoring, and cycle timing to keep coils clear and airflow unrestricted. It directly replaces W10352689. Available as a genuine OEM new unit or a tested used option.

⚠️ Symptoms of a Failed Defrost Control Board

• Refrigerator section not cooling — freezer works but fridge is warm
• Visible frost or ice buildup on the back wall of the freezer compartment
• Thick frost layer on evaporator coils behind the freezer panel
• Refrigerator runs constantly without cycling off
• Defrost cycle never activates — manual defrost required repeatedly
• Defrost cycle runs continuously — water pooling under crisper drawers
• Clicking sounds from the control area at regular intervals
• Error codes indicating defrost system fault
• Food spoiling faster than normal despite correct temperature settings

✓ Part Details

• OEM Part Number: WPW10352689
• Replaces: W10352689
• Part Type: Refrigerator Defrost Control Board (Adaptive Defrost Control / ADC Board / Defrost Timer Board)
• Variants: New OEM (genuine Whirlpool, factory packaging) and Used/Tested Good
• Fits: Whirlpool and KitchenAid top-freezer and bottom-freezer refrigerators
• Features: Microprocessor-controlled defrost timing, over-temperature protection, heater time-out circuits, conformal-coated circuitry for moisture resistance
• Common Failure Causes: Power surges, relay contact wear, moisture intrusion, component fatigue
• Typical Lifespan: 8–15 years; failures most often caused by power surges or relay fatigue from repeated defrost cycling

⚙️ Installation Notes

• Skill Level: Intermediate — access to control housing or rear panel required
• Always disconnect power before servicing — do not work on the board with the refrigerator plugged in
• Allow the refrigerator to fully defrost manually before installing the new board if coils are heavily iced — do not force ice off coils
• The board is typically located behind the refrigerator rear panel or inside the control housing — consult your model's service manual for exact location
• Photograph all connector positions before disconnecting the old board
• Verify all connections match the original board before restoring power
• After installation, run through a full defrost cycle to confirm proper operation
• Monitor for 24–48 hours to confirm frost is not re-accumulating

✓ Compatible Models

Fits Whirlpool and KitchenAid top-freezer and bottom-freezer refrigerators requiring WPW10352689 or W10352689. Verify your model number before ordering. Model tag is located inside the refrigerator door frame. Contact XPart Supply for fitment confirmation.