Whirlpool Refrigerator Defrost Heater W11546606, Replaces W11400747

Genuine Whirlpool OEM refrigerator defrost heater.

Is This the Right Part?

✅ Cross Reference Information

Common Symptoms

• Freezer or refrigerator compartment temperatures rise as frost blocks evaporator airflow.
• Reduced airflow from the freezer evaporator area.
• Recurring frost accumulation on the evaporator after other defrost-system components have been checked.
• Sizzling, hissing, or dripping sounds during defrost may be normal when water contacts the heater and do not by themselves indicate heater failure.

Check Before Replacing

• Disconnect refrigerator power before accessing the evaporator or heater area.
• Visually inspect the evaporator for an abnormal frost or ice buildup pattern; confirm that airflow restriction is present before identifying the heater as the cause.
• Use the refrigerator’s model-specific service documentation or diagnostic mode to check the defrost circuit, rather than applying power directly to the heater.
• With power disconnected, a qualified technician may perform a resistance/continuity check of the heater and inspect its wiring and connectors; an open reading supports a heater-circuit fault but does not by itself prove the heater is the only failed component.

Pro Tip

Part Details

Key Features

• Genuine Whirlpool OEM refrigerator defrost heater.
• Designed to operate as part of the refrigerator’s automatic evaporator-defrost system.
• Associated with Whirlpool refrigerator applications and selected related-brand models.
• Previous Whirlpool OEM number W11400747 is documented as replaced by W11546606.

Installation Notes

• Verify the complete refrigerator model number before ordering or installing.
• Disconnect electrical power before removing covers or handling the heater circuit.
• Access and remove the heater only according to the model-specific service documentation; evaporator and wiring access varies by refrigerator model.
• Inspect connectors and wiring for damage, and restore all covers, insulation, and airflow barriers before returning the refrigerator to service.
• Do not energize the heater outside its intended refrigerator circuit or bypass associated safety devices.

Verified Compatible Models

106.51752718, 106.51753718, 106.51759718, WRS311SDHB07, WRS311SDHM0A, WRS311SDHM08, WRS311SDHM09, WRS311SDHT07, WRS312SNHB05, WRS312SNHM06, WRS312SNHW05, WRS331SDHB06, WRS331SDHM06, WRS331SDHM07, WRS331SDHW06

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.