Refrigerator Defrost Parts – Thermostats, Heaters, Timers & Control Boards

188 products

  • Sale -26%Last stock! 6500JB1008A Refrigerator Genuine OEM Temperature Sensor  Parts-O-Matic

    LG 6500JB1008A Refrigerator Genuine OEM Temperature Sensor

    6500JB1008A Refrigerator Genuine OEM Temperature Sensor Replaces Part Numbers: 6500JB1008A, 1395582, AH3529164, EA3529164, AP4440683, PS3529164.   California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $22.90 $17.00

  • Sale -25%Last stock! WR9X502 Refrigerator Genuine OEM Defrost Timer  Parts-O-Matic

    GE WR9X502 Refrigerator Genuine OEM Defrost Timer

    WR9X502 Refrigerator Genuine OEM Defrost Timer Description: This Defrost Timer is an OEM part for GE refrigerators. This part manages the defrost cycle of the fridge and freezer compartments, ensuring that the evaporator coils do not build up excessive frost.   This cycling is crucial for maintaining optimal temperatures for food preservation and energy efficiency. Over time, the defrost timer can malfunction due to wear, electrical issues, or a buildup of dust and debris, leading to poor performance or failure. Replaces Part Numbers:WR9X502, WR09X10049, WR09X0278, WR09X0283, WR09X0313, WR09X0329, WR09X0334, WR09X0339, WR09X0342, WR09X0350, WR09X0356, WR09X0363, WR09X0364, WR09X0366, WR09X0375, WR09X0387, WR09X0408, WR09X0409, WR09X0418, WR09X0419, WR09X0428, WR09X0432, WR09X0438, WR09X0466, WR09X0468, WR09X0470, WR09X0478, WR09X0479, WR09X0481, WR09X0484, WR09X0486, WR09X0487, WR09X0490, WR09X0495, WR09X0502, WR09X0503, WR09X0504, WR09X0526, WR09X0528, WR09X0576, WR09X0594, WR09X5161, WR09X5162, WR09X5163, WR09X5164, WR09X5192, WR09X5202, WR09X5204, WR09X5211, WR09X5225, WR9X10049, AH310869, EA310869, AP2061708, PS310869.   California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $80.00 $59.80

  • Sale -43% 4388932CM Refrigerator Defrost Control Board Replaces 4388932  Parts-O-Matic

    Choice Manufactured Parts 4388932CM Refrigerator Defrost Control Board Replaces 4388932

    4388932CM Refrigerator Defrost Control Board Defrost Control Adaptive Defrost control board. Fits specific Whirlpool, Maytag, Kenmore, Jenn Air Refrigerator Models. Replaces Part Numbers:4388932, 2154958, 2154985, 2169267, 2169269, 2188159, 2303824, 4388932R, 483187, 844415, AH372261, EA372261, AP3109394, PS372261. This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: California’s Proposition 65 

    $92.50 $53.00

  • Sale -32% ERP W10629033 Refrigerator Inverter Control Board  Parts-O-Matic

    Exact Replacement Parts ERP W10629033 Refrigerator Inverter Control Board

    ERP W10629033 Refrigerator Inverter Control Board Fits Specific Whirlpool, KitchenAid Refrigerator models. Compressor Inverter Board. Description: The Relay-Starting is a exact replacement part for specific Bosch refrigerators. It is responsible for controlling the start signal to initiate proper refrigeration. It is a circuit board that controls the speed and operation of the compressor. Replaces Part Numbers:W10629033, 8201670, 2209324, 2221559, 2223385, 2224047, 2304098, 2304175, 2306957, 2997771, W10133449, AP5801669, PS8760019. This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: California’s Proposition 65 

    $169.80 $115.00

  • Sale -57% ERP DA47-00244W Refrigerator Defrost Heater  Parts-O-Matic

    Exact Replacement Parts ERP DA47-00244W Refrigerator Defrost Heater

    ERP DA47-00244W Refrigerator Defrost Heater Fits specific Samsung Refrigerator Models Description: This Defrost Heater is a exact replacement Part that plays a vital role in maintaining the efficiency of specific Samsung refrigerator models. This part is designed to melt the frost from the evaporator fins during the automatic defrost cycle. This prevents the cooling element from freezing. The defrost heater features a metal sheath that provides protection to the heating element. The heater ensures even heat distribution throughout the appliance. Replaces Part Numbers:DA47-00244W, 2031523, AP5583435, PS4140530. This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: California’s Proposition 65 

    $76.90 $33.00

  • Sale -51% ERP DA47-00285P Refrigerator Defrost Thermostat  Parts-O-Matic

    Exact Replacement Parts ERP DA47-00285P Refrigerator Defrost Thermostat

    ERP DA47-00285P Refrigerator Defrost Thermostat Description: This Thermo Bimetal-Protector is a exact replacement part for specific Samsung brand refrigerators and freezers. Defrost thermostats prevent the defrost heater from overheating, protecting the evaporator in the unit. Replaces Part Numbers: DA47-00285P, 2031581, AP5586181, PS4140621. This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: California’s Proposition 65 

    $45.00 $22.05

  • 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 -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 -39%Last stock! WR50X60 Refrigerator Genuine OEM Defrost Thermostat  Parts-O-Matic

    GE WR50X60 Refrigerator Genuine OEM Defrost Thermostat

    WR50X60 Refrigerator Genuine OEM Defrost Thermostat – For GE, Hotpoint, and Kenmore Product Overview The WR50X60 Refrigerator Defrost Thermostat is a genuine OEM part designed to regulate the defrost cycle by monitoring the temperature near the evaporator coils. When the temperature drops to a preset level, the thermostat activates the defrost heater to melt frost and maintain proper airflow. A faulty defrost thermostat can cause excessive frost buildup and cooling problems. This OEM replacement ensures reliable operation and is ideal for long-term use in compatible refrigerator models. Replaces Part Numbers This OEM thermostat replaces WR50X60, 3489, WR23X5030, WR50X0005, WR50X0007, WR50X0010, WR50X0011, WR50X0017, WR50X0021, WR50X0023, WR50X0026, WR50X0027, WR50X0036, WR50X0060, WR50X0076, WR50X0077, WR50X0089, WR50X0091, WR50X0093, WR50X0101, WR50X0105, WR50X0107, WR50X0110, WR50X0111, WR50X0115, WR50X0125, WR50X10, WR50X101, WR50X105, WR50X107, WR50X11, WR50X110, WR50X111, WR50X115, WR50X125, WR50X17, WR50X21, WR50X23, WR50X26, WR50X27, WR50X36, WR50X5, WR50X5009, WR50X5026, WR50X7, WR50X76, WR50X77, WR50X89, WR50X91, WR50X93, AH303547, EA303547, AP2071242, PS303547. It offers a direct fit and performance consistent with original factory-installed components. Compatible Brands Compatible with GE, Hotpoint, and Kenmore refrigerators made by GE. It fits various top-freezer, bottom-freezer, and side-by-side models that use this thermostat in their defrost systems. Fixes the Following Issues Frost accumulation in freezer Refrigerator not defrosting Blocked airflow due to ice Inconsistent cooling performance Why Buy from Parts‑O‑Matic 100% genuine OEM part for guaranteed compatibility Fast and free shipping throughout the U.S. Trusted by appliance technicians and DIYers Hassle-free returns and responsive support

    $26.00 $15.98

  • Sale -20%Last stock! W10822278 Refrigerator Genuine OEM Defrost Timer  Parts-O-Matic

    Whirlpool W10822278 Refrigerator Genuine OEM Defrost Timer

    W10822278 Refrigerator Genuine OEM Defrost Timer Description: This Whirlpool Defrost Timer is an OEM replacement part for Whirlpool 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:W10822278, 482493, 14210016, 2188372, 2188376, 4262692, 4318057, 482489, 548044, 56906, 790077, 850019, 850038, 850343, 850344, 850345, 850609, 850695, 850731, 850845, 850847, 850878, 850879, 851061, 851106, 851200, 851269, 851701, 851971, 943436, 945513, 945514, 978266, 978472, 989280, 989281, CC309, CC904, CC906, D70041-12, FSP482493, GP6, GP9, R0950217, W10740039, W10822278VP, Y0053736, Y0055525, Y0056627, Y0056768, Y0056906, Y0311209, AP5985208, PS11723171. California Residents only WARNING: California’s Proposition 65 

    $30.00 $23.90

  • Sale -45% ERP 00654622 Refrigerator Inverter Control Board  Parts-O-Matic

    Exact Replacement Parts ERP 00654622 Refrigerator Inverter Control Board

    ERP 00654622 Refrigerator Inverter Control Board Fits Specific Bosch, Thermador Refrigerator models. Compressor Inverter Board. Description: The Relay-Starting is a exact replacement part for specific Bosch refrigerators. It is responsible for controlling the start signal to initiate proper refrigeration. Replaces Part Numbers:00654622, 00609254, 2693364, 609254, 654622, AH3501281, EA3501281, PS3501281, AP5306232, PS8731527. This is an aftermarket part that can be used as a replacement for the OEM part. California Residents only WARNING: California’s Proposition 65 

    $165.00 $91.56

  • Sale -43% ERP WR50X10069 Refrigerator Defrost Thermostat  Parts-O-Matic

    Exact Replacement Parts ERP WR50X10069 Refrigerator Defrost Thermostat

    ERP WR50X10069 Refrigerator Defrost Thermostat L140-30F tube mount with 10" stripped leads. Aluminum housing. Fits GE SxS and french door refrigerators.  Description: This Defrost Thermostat is a replacement Part designed for specific GE refrigerator models. This component acts as a temperature-sensing mechanism. It's crucial in detecting the rise in evaporator temperature during a defrost cycle. It regulates the defrost heater, switching it off once all frost has melted from the coils. This protects the evaporator from overheating.  Symptoms of a bad defrost thermostat may include a refrigerator that fails to defrost properly, visible frost accumulation in the freezer compartment, inconsistent cooling, or increased energy consumption.  The thermostat displays infinite resistance at room temperature and is marked with a rating of L140-30F. Before installing this part, ensure that the refrigerator is unplugged. This part is compatible with select GE brand models including Hotpoint and RCA. Replaces Part Numbers: WR50X10069, AH1155318, EA1155318, AP3884325, PS1155318.   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

    $20.00 $11.50

Refrigerator Defrost Thermostat, Heaters, Timer and Control Board

❄️ Refrigerator Defrost Parts – Thermostats, Heaters, Timers & Control Boards

Is your refrigerator building up frost, running too warm, or cycling improperly? You could be dealing with a defrost system failure — and we have the solution. At Parts-O-Matic.com, we offer a complete line of defrost system components to restore your refrigerator’s cooling efficiency and prevent costly damage.

We carry OEM and high-quality aftermarket defrost parts compatible with all major brands like Whirlpool, GE, Samsung, LG, Frigidaire, Maytag, Kenmore, Electrolux, Bosch, and more.

Refrigerator Thermostat, Defrost Heaters, Timer, Control Board


🛠️ Shop Critical Defrost System Components:

  • Defrost Thermostats – Monitors and regulates the evaporator coil temperature to prevent over-freezing
  • Defrost Heaters – Melts frost from evaporator coils during the defrost cycle
  • Defrost Timers – Activates the heater at scheduled intervals to keep the coils clear
  • Defrost Control Boards – Smart boards that manage the timing and execution of the defrost cycle in digital refrigerators

🔍 Signs of a Faulty Defrost System:

  • Excessive frost buildup on evaporator coils
  • Warm refrigerator section while freezer stays cold
  • Refrigerator runs constantly or not at all
  • Clicking noises or irregular cycling

✅ Why Choose Parts-O-Matic?

✔️ Exact model-match parts – just enter your refrigerator’s model number
✔️ Fast shipping from U.S. warehouses
✔️ Expert-approved components for DIY and professional repair
✔️ Affordable OEM & compatible options
✔️ Fixes for top-freezer, bottom-freezer, side-by-side, and French-door refrigerators


🧰 Restore Your Refrigerator’s Defrost System Today

Don't let a failed defrost system cause food spoilage or compressor damage. With our top-quality defrost thermostats, timers, heaters, and control boards, you can get your fridge back to peak performance quickly and affordably.


🛒 Shop now for defrost system parts at Parts-O-Matic.com – and take the frost out of your fridge for good.


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