12001937 - Genuine OEM Whirlpool Refrigerator Defrost Thermostat Kit

SKU : 12001937
$111.60
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12001937 – Genuine OEM Whirlpool Refrigerator Defrost Thermostat Kit

The 12001937 Genuine OEM Whirlpool Refrigerator Defrost Thermostat Kit is a factory-engineered replacement component designed for select Whirlpool, Maytag, Amana, Kenmore, Jenn-Air, KitchenAid, Crosley, and related refrigerator models. This is a Genuine OEM (Original Equipment Manufacturer) part, built to restore proper defrost cycle control and ensure stable cooling performance. Available through Appliance Kingdom with Canada-wide shipping from Edmonton, AB, this part is commonly used to resolve defrost-related cooling failures, frost buildup, and temperature instability in Whirlpool-style refrigerators.

Function & Importance of the Defrost Thermostat Kit

The defrost thermostat is a critical safety and control device mounted on the evaporator coil inside the freezer section. Its primary role is to:

  • Monitor evaporator coil temperature
  • Open and close the electrical circuit to the defrost heater
  • Prevent overheating during defrost cycles
  • Ensure frost does not build up excessively on the evaporator coils

In Whirlpool refrigerator systems, this component works alongside the defrost heater and control board to maintain proper airflow and cooling efficiency.

When the thermostat fails, the defrost system cannot regulate properly, leading to ice accumulation that blocks airflow and disrupts refrigeration performance.

OEM quality is essential here because incorrect thermal calibration can lead to:

  • Overheating of the evaporator area
  • Incomplete defrost cycles
  • Compressor overwork and reduced lifespan
  • Unstable freezer and refrigerator temperatures

Common Symptoms of a Faulty Defrost Thermostat Kit

A failing 12001937 defrost thermostat kit may cause the following refrigerator issues:

  • Excessive frost or ice buildup on evaporator coils
  • Freezer cooling but refrigerator section becoming warm
  • Refrigerator not cooling evenly
  • Long or incomplete defrost cycles
  • Temperature fluctuations inside the freezer compartment
  • Frost blocking airflow vents
  • Food spoiling due to unstable cooling
  • Refrigerator running continuously without proper cycling

In many Whirlpool refrigerators, these symptoms strongly indicate a defrost system failure. If the thermostat is not closing the heater circuit at the correct temperature, ice buildup becomes severe enough to block airflow and mimic compressor or sealed system issues.

Will Replacing This Part Fix My Problem?

If diagnostics confirm a faulty defrost thermostat, replacing the 12001937 kit often restores normal defrost operation and resolves frost-related cooling issues. However, similar symptoms can also be caused by a defective defrost heater, thermistor, or control board, so proper troubleshooting is important before replacement.

Compatibility Guidance

This part is designed for use in compatible Whirlpool-family refrigerator systems, including brands that share Whirlpool engineering platforms such as:

  • Whirlpool
  • Maytag
  • Amana
  • Kenmore
  • KitchenAid
  • Jenn-Air
  • Crosley

Before ordering, always verify your refrigerator’s model number to ensure correct fitment and compatibility.

Do not install based on symptom alone—model verification is essential for correct performance.

Replaces Part Numbers (Verified Cross References)

Based on manufacturer cross-reference data, the 12001937 defrost thermostat kit replaces:

  • 67002571
  • 67001202
  • 8170904
  • 1023500

These are confirmed OEM interchange numbers used across Whirlpool refrigerator service documentation.

Key Features & Benefits

  • Genuine OEM Whirlpool-manufactured component
  • Engineered for precise evaporator temperature sensing
  • Helps prevent ice buildup and airflow blockage
  • Restores proper automatic defrost cycle operation
  • Built for long-term reliability and safety compliance
  • Designed for Whirlpool-family refrigerator platforms
  • Suitable for residential and light commercial use
  • Trusted by appliance repair professionals across Canada

Installation Overview

Installation is typically moderate difficulty and requires access to the evaporator coil inside the freezer compartment.

Key considerations:

  • Unit must be unplugged before service
  • Freezer panels must be removed for access
  • Thermostat clips onto evaporator tubing
  • Electrical connectors must be properly secured

Experienced DIY users may complete this repair, but professional installation is recommended if you are not comfortable working with internal refrigeration components.

Canada-Wide Availability & Supplier Trust

Appliance Kingdom supplies genuine OEM appliance parts across Canada, with fast shipping from Edmonton, Alberta. This ensures reliable delivery for homeowners, property managers, and appliance technicians nationwide.

Customers benefit from:

  • Fast Canada-wide shipping
  • OEM-verified replacement parts
  • Support for compatibility confirmation
  • Reliable sourcing for Whirlpool refrigerator components

Buyer Confidence & Assurance

When purchasing the 12001937 Whirlpool Defrost Thermostat Kit, you receive:

  • Genuine OEM factory-quality part
  • Reliable performance in Whirlpool refrigerator systems
  • Verified cross-referenced replacement compatibility
  • Reduced risk of repeat defrost failures when installed correctly
  • Support for model verification before ordering

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