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Manual Defrost Parts

Temperature Sensor (Thermistor Assembly)
Genuine Ge part
By: Ge
Part Number: WR23X10582

This temperature sensor monitors internal refrigerator temperatures and relays them to the control, helping the unit maintain consistent cooling. Replacing a failed sensor restores accurate temperature regulation and more reliable operation. What it does:

  • Measures compartment or evaporator temperature and sends a resistance signal to the control board
  • Helps the control modulate compressor and fan run times for proper cooling
  • Typical failure signs: sections too warm or too cold, erratic temperatures, or running longer than normal
  • Causes inaccurate temperature readings compared to setpoints
What's included:
  • 1 temperature sensor assembly
Install notes:
  • Disconnect power before servicing
  • Access the sensor in the affected section; release any cover/clip and unplug the connector
  • Route the new sensor's wiring like the original and ensure it's fully seated in its holder or clip
  • Restore power and allow up to 24 hours for temperatures to stabilize

Do-It-Yourself Stories from Customers like You Frozen coil and ice in bottom of upper compartment been a recurring problem since unit was 2 years old   David W. • New Franklin , OH • January 24, 2016

I've cleaned the drain tube numerous times. Always freezes and plugs. Added a defrost tab down into drain tube, missing from factory. This time defrost heater bad. Replaced heater, bi-metal switch and temp sensor. Great service and next day receipt of parts. Thanks ! Read more

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Defrost Thermostat
Genuine Ge part
By: Ge
Part Number: WR50X60

Open - 60, close - 40

Do-It-Yourself Stories from Customers like You The refrig was too warm   Michael F. • Belvidere , IL • September 02, 2016

When I looked on the Appliance Parts Pro website it said the usual fix for a refrig that is not cooling is to replace the defrost thermostat in the freezer. I didn't see how that would keep the refrig from cooling but I figured I would try it. Got the part yesterday ( two days shipping which was great!). I took the panel off the back of the freezer and the coils were all covered in solid ice! it took me an hour with a heat gun to melt the ice. I changed the defrost thermostat and now the... Read more

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Icing Kit
Genuine Ge part
By: Ge
Part Number: WR49X10021

This icing kit is a factory update designed to reduce frost build-up in the ice/dispenser area. It improves sealing and insulation to help keep the ice path clear and restore reliable dispensing performance.

  • Reduces frost or ice accumulation caused by air leaks or condensation in the ice path
  • Improves sealing/insulation so the ice door closes properly and maintains a tight seal
  • Helps prevent blocked ice flow and intermittent dispensing due to icing
  • Common symptoms include frost around the dispenser opening, ice door not closing fully, or a sticking/jamming dispenser
What's included: One icing kit Install notes:
  • Disconnect power and turn off the water supply before servicing
  • Follow the manufacturer's installation instructions for your specific model
  • After reassembly, verify the ice door operates freely and seals without gaps
  • Allow up to 24 hours of normal operation for temperatures and moisture levels to stabilize

Do-It-Yourself Stories from Customers like You Ice "lava flow" inside the freezer   Kenneth C. • Alamo , CA • February 01, 2018

Firstly, the Ice Door had a kink in the edge, which caused it to stay open and create lots of frost on the coils. $5.00 part, highly recommend it. (By the way, the new door was little too big and it too stay propped open and left a gap so I had to trim the top edge of the rubber with scissors to get it to fully close.) Secondly, there are two heaters for the defrost cycle, one that goes around the coils and another attached to a collector pan beneath the coils. When the cycle hits, those... Read more

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Defrost Heater (Refrigerator)
Genuine Ge part
By: Ge
Part Number: WR51X465

The defrost heater warms the evaporator during automatic defrost cycles to remove frost and ice, restoring airflow and cooling. Replacing a failed heater helps prevent frost buildup and maintain more consistent temperatures throughout the refrigerator.

  • Melts frost from the evaporator coil during scheduled defrost cycles
  • Helps maintain airflow and cooling performance between compartments
  • Failure may cause heavy frost on the back wall/evaporator cover
  • Can lead to reduced cooling, long run times, or fan noise from ice contact
What's included: One defrost heater. Install notes:
  • Disconnect power before servicing; wear appropriate gloves.
  • Remove freezer shelves/ice maker as needed and the rear panel to access the evaporator area.
  • Defrost any ice buildup and avoid damaging evaporator fins or wiring.
  • Reuse original mounting hardware/clips as needed; check the defrost thermostat and control if frost issues continue.

Do-It-Yourself Stories from Customers like You Defrost thermostat and defrost heater needed replacement.   Eric S. • San Angelo , TX • January 17, 2023

I used my experience with appliances to help me replace these parts. I also used the available AppliancePartsPros.com videos that were supplied by your email with my order. The videos are very helpful. Read more

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Refrigerator Temperature Sensor
Genuine Samsung part
By: Samsung
Part Number: DA32-10105S

The Refrigerator Temperature Sensor is essential for maintaining the optimal temperature in your Samsung refrigerator. This genuine OEM part accurately monitors and regulates the cooling system, ensuring your food stays fresh and safely preserved. Designed specifically for Samsung refrigerator models, it guarantees a perfect fit and seamless integration with your appliance. Installing this sensor can help resolve temperature inconsistencies, preventing issues like overcooling or insufficient cooling. By replacing a faulty temperature sensor with the Refrigerator Temperature Sensor , you can enhance the efficiency of your refrigerator and extend its lifespan. This reliable component is easy to install, making it an ideal choice for DIY repairs. Trust in the quality and performance of this genuine OEM part to keep your Samsung refrigerator functioning smoothly and effectively, providing you with a consistent and dependable cooling experience.

Do-It-Yourself Stories from Customers like You The refrigerator section was freezing food   Andrew B. • Rolling Prairie , IN • January 08, 2016

After reading stories on this website I decided the problem was probably the control board. I ordered the sensors also just in case. The display has been dim for awhile so I got that also. I replaced the board and the display in less than an hour. It is working perfectly now so I never installed the sensors. I believe the board was ruined by a recent power outage. The power flickered several times before it went out, I don't think the board could handle the fluctuations. This will be my go to... Read more

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Defrost Thermostat (Bi-Metal)
Genuine Ge part
By: Ge
Part Number: WR50X133

This defrost thermostat is a clip-on, bi-metal safety control for the freezer evaporator. Replacing a failed thermostat restores proper automatic defrost, helping prevent heavy frost buildup and temperature swings in the fresh food section.

  • Monitors evaporator coil temperature and opens the defrost circuit when the coil warms to the cutoff point
  • Helps prevent excessive frost that restricts airflow and reduces cooling performance
  • Common failure symptoms: persistent frost on the evaporator, poor cooling/warm fridge, unit running longer than normal, or defrost heater staying on too long
  • Mounts on the evaporator tubing; closes when cold and opens as the coil warms during defrost
What's included: One defrost thermostat Install notes:
  • Disconnect power before servicing; use proper PPE
  • Access the evaporator by removing the rear freezer panel
  • Note wiring positions; make secure, insulated connections per appliance service guidelines
  • Clip the thermostat firmly to the same coil location/orientation for accurate sensing and reassemble panels before restoring power

This part fixes the following symptoms
  • Fridge too warm
See more...
Do-It-Yourself Stories from Customers like You Top getting warm.   Adam L. • Almond , WI • December 24, 2019

I bought a thermostat and defrost timer. Read more

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Defrost Heater
Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10436849

The defrost heater melts frost off the evaporator coil during the automatic defrost cycle so cold air can circulate freely. Replacing a failed heater helps clear recurring ice buildup and restores stable refrigerator and freezer temperatures.

  • Heats the evaporator to remove frost/ice during the defrost cycle
  • Prevents airflow blockages to maintain consistent cooling
  • Common symptoms: heavy frost behind the rear panel, fan noise from ice contact, weak cooling or warm spots, ice returning soon after manual defrost
  • When the heater is open/burned out, frost accumulates on the coil and restricts airflow
What's included: 1 defrost heater Install notes:
  • Disconnect power before servicing; wear cut-resistant gloves
  • Safely defrost any heavy ice; do not chip at coils to avoid fin or tubing damage
  • Route and secure wiring as original; reuse existing clips/brackets as required and keep leads clear of the fan
  • After reassembly, ensure panels seal properly and the defrost drain path is clear for meltwater

Do-It-Yourself Stories from Customers like You Frost/ice buildup in freezer causing fan to run constantly and loudly.   Gail T. • Williamson , NY • June 13, 2021

Replaced defrost heater and temperature sensor. Read more

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Defrost Heater
Genuine Frigidaire part
By: Frigidaire
Part Number: 240356221

This defrost heater warms the evaporator coil during the automatic defrost cycle to melt frost and ice, restoring airflow and consistent temperatures. Replace a failed heater to stop recurring frost buildup and uneven cooling. What it does:

  • Heats the evaporator to clear frost/ice so air can circulate
  • Helps maintain stable refrigerator and freezer temperatures
  • Symptoms include heavy frost on the back freezer panel or coils, poor cooling, evaporator fan noise from ice contact, or frost returning soon after a manual defrost
What's included:
  • 1 defrost heater
Install notes:
  • Disconnect power before servicing
  • Remove freezer shelves and the rear interior panel to access the evaporator area
  • Transfer the heater into the original clips/brackets and route wiring exactly as original, away from sharp edges and the fan
  • If frost returns after replacement, also test the defrost thermostat and the defrost control
Diagnostic tip:
  • With power disconnected, the heater should show continuity on an ohmmeter; an open circuit indicates a failed element

Do-It-Yourself Stories from Customers like You Defrost cycle was not working frost in the freezer department   Charles B. • Yorktown Hts. , NY • September 19, 2014

First replaced defrost timer which tested OK - but reasonable price and easy to replace. When that did not fix the problem replaced the defrost thermostat and defrost heater. That fixed the problem. However all three parts tested OK ?? May have been a loose connection or intermittent problem with one of the parts. Final cost for all three parts was much cheaper than a service call!! Read more

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Defrost Thermostat (Round Bimetal), 1-Pack
Genuine Frigidaire part
By: Frigidaire
Part Number: 5303918638

This is the round bimetal defrost thermostat used in many refrigerators. It protects the evaporator from icing by opening and closing based on coil temperature, helping ensure consistent defrost cycles and reliable cooling performance.

  • Monitors evaporator coil temperature to start/stop the defrost heater
  • Opens on temperature rise to prevent overheating during defrost
  • Can help if the freezer ices up, fresh food warms, or defrosts are inconsistent
  • Often checked when the unit won't defrost or shows heavy frost on the evaporator
What's included: One defrost thermostat (wiring leads/connectors as shown by the manufacturer) Install notes:
  • Unplug the refrigerator before servicing; defrost and access the evaporator area
  • Mount thermostat to the evaporator tubing in the same location/orientation as original
  • Use proper wire connections and route harness away from moving/hot parts
  • After installation, verify defrost operation and check for air leaks or failed fans/heaters

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Compressor Start Relay
Genuine Lg part
By: Lg
Part Number: EBG32952202

THERMISTOR ASSEMBLY,PTC

Do-It-Yourself Stories from Customers like You Lg refrigerator wound not start   Steve S. • Peoria , AZ • May 28, 2016

For an emergency fix I installed a 3 in1 kit disabling the original start cap and wiring in the original run cap to the run winding. Ordered the proper PTC and overload from Appliance Parts Pros and installed them 2 weeks later. The original start and run capacitor were good, rewired back to design specs. The original PTC had pins 1,2 and 3, the replacement had 2,3 and 4. Only wiring change was to install the red wire from pin 1 on the original PTC to pin 4 on the new PTC. Read more

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Defrost Timer Cam
Genuine Whirlpool part
By: Whirlpool
Part Number: WP2314156

This defrost timer cam replaces the plastic cam on a mechanical defrost timer. It restores the timer's changeover between cooling and defrost, helping prevent frost buildup on the evaporator and temperature swings inside the refrigerator.

  • Mounts on the timer shaft to actuate the internal switch between cooling and defrost
  • Helps resolve issues like heavy frost on the evaporator, warm fresh food section, or a unit stuck in defrost/run
  • Corrects timer advancement problems caused by a stripped, cracked, or missing cam
  • Typically installed with the defrost timer in the control housing or rear service area
What's included: 1 defrost timer cam Install notes:
  • Disconnect power before servicing
  • Access the defrost timer and note the original cam's orientation for reference
  • Remove any retainer, pull the old cam straight off, and press the new cam fully onto the shaft without forcing
  • Reassemble, then manually advance the timer to confirm it switches modes before restoring power

Do-It-Yourself Stories from Customers like You Erratic cooling ice buildup in freezer   Donald M. • Stover , MO • March 13, 2015

I replaced the Thermostat and Defrost Timer. It was a fairly easy repair other than removing the old Defrost Timer. The way the manufacturer, in this case, Amana, mounts that unit with "clips" is just poor design and engineering. It is virtually impossible to get the timer out without damaging the mounts. I had to do some creative rework to mount the new timer. After 2 days, the fridge appears to be working properly with these new parts. The new parts were shipped Very Fast...APP is... Read more

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Defrost Timer (Mechanical)
Genuine Ge part
By: Ge
Part Number: WR9X482

This mechanical defrost timer controls the refrigerator's automatic defrost cycle, clearing frost from the evaporator and helping maintain stable temperatures. Replacing a faulty timer restores regular defrost intervals to prevent frost buildup and inconsistent cooling.

  • Cycles the system between cooling and defrost at set intervals to remove frost from the evaporator coils
  • Heavy frost on the freezer back wall or evaporator cover may indicate a failed timer
  • Fresh food section warming while the freezer seems cold, or unit stuck in defrost with no cooling
  • Compressor runs continuously or never restarts; timer does not advance as expected
What's included: 1 defrost timer Install notes:
  • Disconnect power before servicing to avoid electrical shock
  • Access location varies by model; commonly in the control housing, behind the kick plate, or at the rear near the compressor
  • Photograph or label wiring and transfer wires one at a time to the matching terminals
  • Mount securely, restore power, and confirm normal cooling/defrost operation

Do-It-Yourself Stories from Customers like You Ge refrigerator was not cooling as normal   Richard W. • Washington , IL • September 30, 2014

This unit has a recurring problem with the defrost timer. after the first 10 years the original part gave up. we had it replaced and (as normal for me i watched very closely) . after 2 years the same trouble started again. the defrost cycle would run to long. so i replaced the same part and solved the trouble again. so now about every 2 years this part wears out again and i order it and replace it. this has gone on for 20 years now and this unit is still going strong after serving us for 29... Read more

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Refrigerator Control Board
Genuine Whirlpool part
By: Whirlpool
Part Number: WP2304099

This is a refrigerator control board that can be used to replace a damaged or faulty board in select refrigerators. The control board is used to manage various functions that occur in the refrigerator, including cooling and defrosting. If there is a problem with the board, the refrigerator might not be able to defrost correctly, or it might not stay cool.The control board for the refrigerator tends to last a long time. However, it could eventually wear out and stop working. It could be damaged due to a voltage surge, or it might be a faulty board. Remove and store all food in the refrigerator and unplug it before beginning repairs.This refrigerator control board works with certain models from Kenmore, Whirlpool, KitchenAid, Roper, Estate, Inglis, Crosley, Gladiator, Kirkland, and Maytag. It's sold individually and is a genuine OEM replacement.

Do-It-Yourself Stories from Customers like You Not defrosting   Paul H. • Cheektowaga , NY • August 05, 2021

Replaced control board. Read more

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Defrost Timer
Genuine Ge part
By: Ge
Part Number: WR09X10041

This defrost timer cycles the refrigerator in and out of defrost at set intervals. By powering the defrost heater and then returning to cooling, it clears frost from the evaporator so airflow and temperatures remain stable.

  • Switches power to the defrost heater on a timed schedule, then back to the compressor and fans
  • Helps prevent heavy frost buildup on the evaporator coils
  • Failure may present as persistent frost, warm sections, the unit stuck in defrost (no cooling), or continuous running
  • May also cause irregular clicking or a timer that won't advance
What's included: One defrost timer Installation notes:
  • Disconnect power before servicing; wear cut-resistant gloves
  • Access the control housing or machine compartment, note wire positions, and remove the original timer
  • Transfer any mounting hardware/bracket, orient the new timer like the original, and reconnect wiring securely
  • Manually advance the timer if applicable to confirm switching, then restore power and monitor operation

Do-It-Yourself Stories from Customers like You First heard clicking sound and saw that freezer was thawing then later freezer was cold but refrigerator was warm; defrost control timer was clicking every time the fridge door was opened   Oyinda O. • Jamaica Plain , MA • January 02, 2016

Replaced the defrost control timer Read more

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Heater
Genuine Frigidaire part
By: Frigidaire
Part Number: 5304524953

This factory heater restores controlled heat in the appliance's heating or defrost circuit so cycles complete correctly and performance returns to normal. Replacing a failed heater helps resolve temperature-related issues and reduces extended run times. What it does:

  • Generates heat for the unit's designed function (wash/dry assist or defrost), depending on model
  • A failed element can cause no heat, extended cycles, or temperature-related error codes
  • Result in dishes staying wet or detergent not dissolving (dishwashers)
  • Lead to frost/ice accumulation that doesn't melt during defrost (refrigeration)
  • Often tests open (no continuity) when defective
What's included:
  • 1 heater
Install notes:
  • Disconnect power before servicing; turn off water supply if applicable
  • Access and mounting vary by model—refer to the product's service information
  • Note wire positions; make firm, original-style connections and avoid stressing terminals
  • After reassembly, run a test and check for leaks where the heater passes through the tub (if applicable)

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Freezer Wire Harness
Genuine Whirlpool part
By: Whirlpool
Part Number: WP2192096

This freezer wire harness links the refrigerator's control system to components inside the freezer compartment. Replacing a compromised harness restores reliable electrical connections and can resolve intermittent or dead freezer functions caused by burned, broken, or corroded wiring.

  • Routes power and signals between the control system and freezer components
  • Supports proper operation of devices such as the evaporator fan, defrost circuit, lighting, or icemaker
  • Replaces cut, heat-damaged, or brittle wiring and loose/oxidized connectors
  • Typical symptoms: intermittent cooling, components not running, or visible burned/melted connectors
What's included: One freezer wire harness assembly. Install notes:
  • Disconnect power to the refrigerator before servicing
  • Photograph routing and connections; move wires over one-by-one to the new harness
  • Seat connectors fully until locking tabs engage; avoid forcing pins
  • Route through original clips/grommets and keep clear of sharp edges, hot surfaces, and moving parts

Do-It-Yourself Stories from Customers like You Freezer frosting up   Nathan F. • Belgrade , MO • April 17, 2015

Replaced the heater, timer, and wiring harness Read more

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