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Defrost Parts

Freezer Defrost Heater
Genuine Whirlpool part
By: Whirlpool
Part Number: W11175809

Fix ice buildup in your freezer with this defrost heater. Replaces burnt-out heating elements on evaporator coils. Moderately difficult, 2-5 hour repair.

Do-It-Yourself Stories from Customers like You Freezer wasn't defrosting ice was accumulating in bottom   Edgar H. • Mauldin , SC • April 21, 2026

Replace the defrost heater. It was obviously nonfunctional (broken). Read more

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Heater Harness (Fresh Food)
Genuine Ge part
By: Ge
Part Number: WR23X23626

This heater harness installs in the refrigerator's fresh food section. It provides defrost heat and the correct wiring connections to clear frost from the fresh food evaporator, restoring airflow so the compartment cools evenly and reliably.

  • Delivers defrost heat to the fresh food evaporator to melt frost and ice
  • Includes the correct harness/wiring for a precise, plug-in connection
  • Helps restore proper airflow and temperature regulation in the refrigerator compartment
  • Symptoms include heavy frost on the fresh food evaporator cover or back wall
  • Also presents as a warm fridge (with normal freezer) or fan noise from ice contact
What's included: 1 fresh food heater harness assembly. Install notes:
  • Disconnect power before servicing; use cut-resistant gloves
  • Access is behind the fresh food evaporator cover; protect delicate fins and sensors
  • Route the harness exactly as the original and fully seat all connectors/clips
  • After reassembly, ensure the drain path is clear and the fan spins freely

Do-It-Yourself Stories from Customers like You Fresh food evaporator was freezing and ice maker motor was stuck in my ge refrigerator   Joseph L. • Temple , TX • August 04, 2026

I replaced the evaporator fan after using a steam gun to defrost the evaporator and ensuring the drain wasn't clogged. After assembling, I noticed the refrigerator wasn't performing a defrost cycle. After testing the heater, I determined the main board relay was malfunctioning and not supplying the voltage to the heater. After correcting this, the ice maker wasn't making ice still and after troubleshooting it, I determined the dc motor was stuck. I replaced the ice maker and the... Read more

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Refrigerator Defrost Heater
Genuine Frigidaire part
By: Frigidaire
Part Number: 242044021

Excessive frost in freezer? Fridge warm but freezer cold? This defrost heater prevents ice buildup on evaporator coils. Moderate DIY repair with video guide.

Do-It-Yourself Stories from Customers like You Freezer cold fridge cold then about 2 weeks later freezer would frost over fridge hot   Mya B. • Jensen Beach , FL • January 06, 2020

I doubt I needed all the parts I bought but I am limited on time. So I replaced the defrost thermostat, defrost timer, and the defrost heater. So far so good. It hasn't been 2 weeks yet, but I have noticed that the freezer doesn't seem to be constantly running as before. Time will tell. Read more

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$88.95
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Refrigerator Defrost Heater Sheath
Genuine Samsung part
By: Samsung
Part Number: DA47-00424B

Ice buildup on refrigerator back wall? A faulty defrost heater sheath may be the cause. This repair typically takes 45 minutes with proper defrosting.

Do-It-Yourself Stories from Customers like You Defrost heater was not working   John F. • Limerick , PA • December 16, 2014

Completely defrosted the refrigerator ,took 2days then replaced temp sensor and heater the repair took about 45 minutes so far everything is working fine Read more

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Refrigerator Defrost Timer
Genuine Whirlpool part
By: Whirlpool
Part Number: WP68233-3

Fix freezer icing and warm fridge temps by replacing a faulty defrost timer. Typical DIY repair takes 15-30 minutes with basic tools and a multimeter.

This part fixes the following symptoms
  • Freezer not defrosting
See more...
Do-It-Yourself Stories from Customers like You The refrigerator was operating in an unusual manner. The freezer would get abnormally cold even when set at the warmest temp on the dial. Then the refrigeration area was too warm.   Greg T. • Boulder , MT • March 23, 2014

I took the bottom tray out of the freezer and found the coils iced up severely. I was reasonably sure the defrost timer was the problem and your tech said that was a good possibility. Ordered and replaced timer. (15 minutes) Problem fixed!!! Saved purchasing a new fridge at big bucks. We live over 40 miles from a service center so the cost of having a tech come out is astronomical. Thanks!!! Read more

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Refrigerator Defrost Heater
Genuine Whirlpool part
By: Whirlpool
Part Number: WP2323197

If your freezer is icing up or coils are freezing, replace the defrost heater. Melts frost from evaporator coils during defrost cycle. DIY-friendly repair.

Do-It-Yourself Stories from Customers like You Circuit breaker would reset once refrigerator goes into defrost mode   John C. • Elk Grove , CA • November 16, 2016

Replaced defrost heater with the help of the appliance parts pro how to video. Video had made doing the job with ease. Had a laptop next to me making sure I had not missed a step. Been a week and things been all good. Well worth it. Thank you! Read more

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Refrigerator Defrost Heater
Genuine Whirlpool part
By: Whirlpool
Part Number: WP67004188

Fixes freezer ice buildup and warm refrigerator sections by melting frost from the evaporator coil. Restores proper airflow and cooling performance.

Do-It-Yourself Stories from Customers like You Fridge not cooling freezer eval coil frosted over   Tom A. • Ridgecrest , CA • June 10, 2016

Ended up being the defrost sensor. Ordered the heater and control board just in case. Started with the control board still didn't defrost. replaced the sensor and all is well. Super helpful tech staff answered all my questions... Read more

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Refrigerator Defrost Timer Control Board
Genuine Ge part
By: Ge
Part Number: WR9X565

Fridge not cooling or excessive frost buildup? A faulty defrost timer may be cycling incorrectly. Straightforward DIY replacement restores automatic defrost.

Do-It-Yourself Stories from Customers like You Fridge not staying cold   Paul S. • San Marcos , CA • July 22, 2017

I replaced the defrost timer and the defrost heater and this fixed the problem. The freezer does not ice up the intake holes to the fridge anymore. Read more

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

This is a thermistor-style temperature sensor that monitors the internal temperature inside the refrigerator compartment and sends readings to the main control board. The control board uses this data to regulate the compressor and cooling cycles to maintain proper temperatures. Replace this sensor if the refrigerator is running too warm, too cold, not cycling correctly, or displaying temperature-related error codes.

Do-It-Yourself Stories from Customers like You R3 refrigerator defrost sensor error   Marvin D. • Dover , FL • August 11, 2015

Using service manual, obtained from this site, I verified with meter that this was the error. I ordered the defrost sensor. The part arrived the next day. Most of the time to repair was unloading, cleaning, and reloading the refrigerator. Read more

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Refrigerator Defrost Heater Harness With Thermostat
Genuine Ge part
By: Ge
Part Number: WR23X10745

Fix frost buildup in your freezer with this defrost heater harness and thermostat. Restores proper defrost cycling to prevent ice accumulation.

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

Fix frost buildup on freezer walls and noisy fan operation. This defrost heater melts ice from evaporator coils during the auto-defrost cycle. DIY repair.

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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Refrigerator Defrost Thermostat
Genuine Frigidaire part
By: Frigidaire
Part Number: 5303918638

Freezer coils icing up or not defrosting properly? This defrost thermostat monitors evaporator temperature to control defrost cycles. Moderate DIY repair.

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

Fixes refrigerator not defrosting or freezer icing up. This adaptive defrost control board manages defrost cycles. DIY-friendly repair.

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

Fix frost buildup and inconsistent cooling by replacing a failed defrost heater. Melts ice from the evaporator coil during defrost cycles. DIY repair.

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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$143.95
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  • Over 2.1 Million Parts In Stock Over 2.1 Million Parts In Stock
  • 2 Day Quick Delivery! 2 Day Quick Delivery!
  • 365 Day Return Policy! 365 Day Return Policy!
  • Repair ForumFree Tech Support!
  • Google Trusted Store Google Trusted Store
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