Refrigerator Defrost Thermostat and Sensors

21 products

  • Sale -35%Last stock! ERP 6615JB2005N Refrigerator Temperature Sensor Exact Replacement Parts

    Exact Replacement Parts ERP 6615JB2005N Refrigerator Defrost Sensor

    6615JB2005N Refrigerator Defrost Sensor – Aftermarket Replacement for LG and Kenmore Product Overview The 6615JB2005N Refrigerator Defrost Sensor is an aftermarket replacement part that monitors the evaporator temperature during defrost cycles. If your refrigerator is experiencing frost buildup, erratic defrosting, or poor cooling performance, a failed defrost sensor may be the cause. This sensor helps regulate when the defrost heater turns on and off, ensuring balanced cooling and preventing ice accumulation on the evaporator coils. Replaces Part Numbers This sensor replaces part numbers 6615JB2005N, 6615JB2005X, AH3636324, EA3636324, AP5600323, PS3636324, and other equivalent LG defrost sensor models.  Designed to closely match the original in both form and function for dependable operation. Compatible Brands Compatible with LG and Kenmore refrigerators built by LG. Fits many side-by-side, French door, and bottom freezer configurations that use this type of defrost sensor. Fixes the Following Issues Excessive frost buildup in freezer Defrost cycle not working Cooling performance issues Inconsistent or fluctuating temperatures Why Buy from Parts‑O‑Matic High-quality aftermarket part Fast and free shipping within the U.S. Easy to install and reliable in performance Backed by appliance repair professionals and DIYers

    $26.00 $16.99

  • Sale -28%Last stock! ERP 6615JB2005H Refrigerator Temperature Sensor Exact Replacement Parts

    Exact Replacement Parts ERP 6615JB2005H Refrigerator Defrost Sensor

    6615JB2005H Refrigerator Defrost Sensor – Replacement for LG and Kenmore Product Overview The 6615JB2005H Refrigerator Defrost Sensor is an aftermarket replacement designed to monitor freezer temperature during defrost cycles. A faulty sensor can cause frost buildup, cooling issues, or prevent defrosting altogether. This sensor helps ensure the defrost heater activates at the right time, protecting your evaporator from excessive ice accumulation and maintaining consistent refrigerator performance. Replaces Part Numbers This sensor replaces 6615JB2005H, 1266868, 6615JB2005M, AH3529340, EA3529340, AP4438477, PS3529340. It is engineered to match OEM specifications for performance and fit in compatible LG and Kenmore models. Compatible Brands This defrost sensor is compatible with refrigerators made by LG and Kenmore (models manufactured by LG). It fits a variety of side-by-side, bottom freezer, and French door configurations. Fixes the Following Issues Frost or ice buildup in freezer Defrost cycle not activating Refrigerator not cooling properly Temperature fluctuation or error codes Why Buy from Parts‑O‑Matic Affordable, high-quality aftermarket solution Fast and free shipping throughout the U.S. Trusted by appliance repair professionals and DIYers Simple installation and reliable performance

    $22.90 $16.49

  • Sale -32%Last stock! ERP 242046001 Refrigerator Defrost Thermostat  Parts-O-Matic

    Exact Replacement Parts ERP 242046001 Refrigerator Defrost Thermostat

    ERP 242046001 Refrigerator Defrost Thermostat Defrost Thermostat L47-22F with tube mount Can also be used for 240386402 by removing plugs Description: This defrost thermostat is a exact replacement part responsible for regulating the defrost cycle in a refrigerator's freezer compartment. This part is typically located on or near the evaporator coils within the freezer. When frost and ice begin to accumulate on the coils during normal refrigerator operation, the thermostat detects a temperature drop. In response, it signals the refrigerator's defrost heater to activate, which raises the temperature within the freezer slightly to melt the accumulated frost and ice. Replaces Part Numbers:242046001, 1564839, AH2378768, AP4508400, EA2378768, PS2378768. This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: California’s Proposition 65 

    $26.32 $17.99

  • Sale -49%Last stock! DA32-10105RCM Refrigerator Temperature Sensor Replaces DA32-10105R  Parts-O-Matic

    Choice Manufactured Parts DA32-10105RCM Refrigerator Temperature Sensor Replaces DA32-10105R

    DA32-10105RCM Refrigerator Temperature Sensor  Replaces Part Numbers: DA32-10105R, DA32-00006W, DA32-00006U, 2030342, DA32-00006B, DA32-00006C, DA32-00006D, DA32-00006L, DA32-00006M, DA32-00006T, DA32-00006V, AP4135567, PS4138681. 1" probe, 25.75" lead with two pin connectors. Fits Specific Samsung Refrigerator Models. This Defrost Sensor is a replacement part designed specific Samsung refrigerator models. This sensor, sometimes referred to as a defrost thermostat or defrost temperature sensor, is an integral part of your refrigerator's defrost system.   This is an aftermarket part that can be used as a replacement for the OEM part. 

    $20.00 $10.25

  • Sale -50% DA32-00006W Genuine OEM Refrigerator Thermistor Replaces DA32-10105R  Parts-O-Matic

    Samsung DA32-00006W Genuine OEM Refrigerator Thermistor Replaces DA32-10105R

    DA32-00006W Genuine Samsung OEM Refrigerator Thermistor Refrigerator defrost temperature sensor. Replaces Part Numbers: DA32-10105R, DA32-00006W, DA32-00006U, 2030342, DA32-00006B, DA32-00006C, DA32-00006D, DA32-00006L, DA32-00006M, DA32-00006T, DA32-00006V, AP4135567, PS4138681. The Samsung Defrost Sensor is a genuine part designed specifically for Samsung refrigerators. This sensor, sometimes referred to as a defrost thermostat or defrost temperature sensor, is an integral part of your refrigerator's defrost system.  

    $28.00 $14.00

  • Sale -28%Last stock! DA32-10109YCM Refrigerator Temperature Sensor Replaces DA32-10109Y Choice Manufactured Parts

    Choice Manufactured Parts Choice DA32-10109Y Refrigerator Temperature Sensor

    Choice DA32-10109Y Refrigerator Temperature Sensor – Replacement for Samsung Product Overview The DA32-10109Y Refrigerator Temperature Sensor is an aftermarket replacement part designed to measure and relay internal temperatures to the control board. A faulty sensor can lead to cooling problems, temperature fluctuations, or improper defrost cycles. Replacing a worn sensor with this reliable component helps restore accurate temperature readings and optimal cooling performance in your refrigerator. 8-1/4" overall length with two pin plug for freezer. Fits Samsung SXS refrigerator models. Replaces Part Numbers This sensor replaces part numbers DA32-10109Y, AP4136950, PS4138703. It is engineered to match the fit and functionality of the original Samsung sensor. Compatible Brands Compatible with many Samsung and Kenmore refrigerators manufactured by Samsung. Fits French door, bottom-freezer, and side-by-side models that use this temperature sensor. Fixes the Following Issues Refrigerator not cooling properly Freezer too warm or too cold Temperature reading errors Inconsistent cooling or defrost operation Why Buy from Parts‑O‑Matic Affordable and dependable aftermarket part Fast and free U.S. shipping Easy to install – no special tools required Trusted by appliance techs and DIYers

    $18.50 $13.40

  • Sale -33%Last stock! 5303917633 Refrigerator Genuine OEM Defrost Timer  Parts-O-Matic

    Frigidaire 5303917633 Refrigerator Genuine OEM Defrost Timer

    5303917633 Refrigerator Genuine OEM Defrost Timer Description: This Electrolux Defrost Timer is an OEM replacement part for specific Frigidaire refrigerators. The defrost timer regulates the automatic defrost cycle, which prevents ice buildup on the evaporator coils in the freezer compartment by sending a signal to the defrost heater to turn on and melt any ice buildup on the coils. Once the defrost cycle is complete, the timer signals the heater to turn off, allowing the coils to cool and return to their normal temperature. Replaces Part Numbers:5303917633, 3286, A769, AH468976, CC351, CC901, EA468976, AP2592955, PS468976. California Residents only WARNING: California’s Proposition 65 

    $30.00 $20.00

  • Sale -66%Last stock! 5303917625CM Refrigerator Defrost Thermostat Replaces 5303917625 Choice Manufactured Parts

    Choice Manufactured Parts 5303917625CM Refrigerator Defrost Thermostat Replaces 5303917625

    5303917625CM Refrigerator Defrost Thermostat L47-22F tube mount with bullet connectors. Fits Electrolux refrigerator. Replaces Part Numbers: 5303917625, 08000805, 3001234, 3015138, 3916083, 5308000805, 636974, 8000805, AH468968, EA468968, G000166153, AP2592599, PS468968.   This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $29.50 $9.95

  • Sale -34%Last stock! 242046001CM Refrigerator Defrost Thermostat Replaces 242046001 Choice Manufactured Parts

    Choice Manufactured Parts 242046001CM Refrigerator Defrost Thermostat Replaces 242046001

    242046001CM Refrigerator Defrost Thermostat Defrost Thermostat L47-22F with tube mount Can also be used for 240386402 by removing plugs Replaces Part Numbers: 242046001, 1564839, AH2378768, AP4508400, EA2378768, PS2378768.   This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $26.32 $17.50

Refrigerator-Defrost-Thermostat-and-Sensors Parts-O-Matic

Refrigerator Defrost Thermostat and Sensors

📝 Intro

Keep your refrigerator frost-free with a reliable defrost thermostat and Sensors from Parts-O-Matic. We stock a wide range of OEM and aftermarket thermostats designed to restore proper cooling and extend the life of your appliance.


❄️ Product Overview

A refrigerator defrost thermostat is a critical part of your fridge’s defrost system. It senses the evaporator coil temperature and controls the defrost cycle. When the thermostat fails, you may notice frost buildup, warm compartments, or a refrigerator that won’t stay cold.

At Parts-O-Matic, we carry a full selection of Genuine OEM and high-quality aftermarket refrigerator defrost thermostats to keep your appliance running smoothly.

✅ OEM & aftermarket options available
✅ Fits most major refrigerator brands
✅ Quick & easy installation
✅ Free shipping on all orders


⚙️ Functions of a Refrigerator Defrost Thermostat

  • 🌡️ Monitors Evaporator Coil Temperature – Ensures the defrost cycle starts and stops at the correct time.

  • ❄️ Prevents Frost Buildup – Stops ice from forming on evaporator coils, maintaining proper airflow.

  • 🧊 Maintains Consistent Cooling – Keeps food at safe, steady temperatures by regulating defrost cycles.

  • 🔧 Protects Other Components – Prevents over-freezing and reduces strain on the compressor and fan motor.

  • ⏱️ Automatic Reset – Turns off the defrost heater once the correct temperature is reached.


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  • 🛠️ Genuine OEM & quality aftermarket parts in stock

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  • 📍 Based in Woodbridge, VA – fast nationwide shipping

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