Thermostat | Defrost Heaters | Timer | Control Board

186 products

  • Sale -13% WR32X10455 Refrigerator Drip Tray  Parts-O-Matic

    GE WR32X10455 Refrigerator Drip Tray

    WR32X10455 Refrigerator Drip Tray Fits Specific GE Refrigerator Models. Replaces Part Numbers: WR32X10455, 1057496, AH783809, EA783809, AP3202588, PS783809, WR32X10037, WR32X1085.   California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $40.00 $35.00

  • Sale -14%Last stock! DA41-00447A Refrigerator Dispenser UI Control Board  Parts-O-Matic

    Samsung DA41-00447A Refrigerator Dispenser UI Control Board

    DA41-00447A Refrigerator Dispenser UI Control Board Fits Specific Samsung Refrigerator Models Replaces Part Numbers: DA41-00447A, 2031051, AP4338281, PS4139801.    California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $142.00 $122.00

  • Sale -29% EBR77042507 Refrigerator Main Control Board Replaces CSP30020818  Parts-O-Matic

    LG EBR77042507 Refrigerator Main Control Board Replaces CSP30020818

    EBR77042507 Refrigerator Main Control Board Fits Specific LG, Kenmore Models Replaces Part Numbers: EBR77042507, CSP30020818, AP5977601, PS11710735.   California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $135.00 $95.20

  • Sale -23%Last stock! WR51X10101 Refrigerator Genuine OEM Defrost Heater  Parts-O-Matic

    GE WR51X10101 Refrigerator Genuine OEM Defrost Heater

    WR51X10101 Refrigerator Genuine OEM Defrost Heater This Defrost Heater Kit is an OEM part for specific GE refrigerator models. It is designed to prevent frost and ice buildup within the freezer compartment by heating up at regular intervals to melt away any accumulated frost. 120V, 575W, 8" tube, 9 1/2" overall, dual tube with leads. For 12-inch glass tube heater use Part Number WR51X10055. Replaces Part Numbers:WR51X10101, 1399613, AH1993872, AP4355467, EA1993872, PS1993872, WR51X10032, WR51X10053, WR51X10097.   California Residents only WARNING: Cancer and/or Reproductive Harm - www.p65warnings.ca.gov

    $59.10 $45.60

  • Sale -86% ERP 5303918775 Refrigerator Temperature Sensing Thermistor  Parts-O-Matic

    Exact Replacement Parts ERP 5303918775 Refrigerator Temperature Sensing Thermistor

    ERP 5303918775 Refrigerator Temperature Sensing Thermistor Fits Specific Frigidaire, Electrolux Refrigerator models. Description:  Monitor and regulate your refrigerator's temperature with the ERP 5303918775 Refrigerator Temperature Sensing Thermistor. This expertly designed thermistor provides accurate readings and ensures your food stays fresh and safe. With its precise measurements, you can trust that your fridge is running at optimal temperature for maximum efficiency. Replaces Part Numbers:5303918775, 4456169, AP6041624, PS11775596.    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  

    $79.60 $11.00

  • Sale -22% 5303918214 Refrigerator Genuine OEM Defrost Thermostat  Parts-O-Matic

    Frigidaire 5303918214 Refrigerator Genuine OEM Defrost Thermostat

    5303918214 Refrigerator Genuine OEM Defrost Thermostat Replaces Part Numbers: 5303918214, 75303918214, 892545, AH469522, EA469522, AP2150145, PS469522. Description: This Defrost Thermostat Kit is a Genuine OEM replacement defrost thermostat  for specific Frigidaire refrigerator models. This kit contains the defrost thermostat, which is a crucial component in the refrigerator's defrost system.  

    $28.90 $22.50

  • 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

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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