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Kenmore / Sears Defrost Heater, Icing Kit, Fountain Heater

Kenmore Defrost Heater Kit (Freezer Evaporator)
Genuine Frigidaire part
By: Frigidaire
Part Number: 5303918255

This defrost heater kit restores the automatic defrost cycle by melting frost from the freezer's evaporator coils. Replacing a failed heater helps clear ice buildup, restore airflow, and stabilize temperatures for reliable cooling performance.

  • Heats the evaporator during defrost to remove frost and ice
  • Helps maintain proper airflow through the coils for consistent cooling
  • Common symptoms of a failed heater: heavy frost on the back freezer wall, weak airflow, warming temps, or cooling that improves after a manual defrost
  • Supports efficient operation by preventing ice from re-forming on the evaporator
What's included: 1 defrost heater assembly Install notes:
  • Unplug the refrigerator before servicing; let any sharp parts or coils warm up to avoid damage
  • Access the heater behind the freezer's rear panel; handle the element carefully to avoid damage
  • Note wire routing and mounting before removal to match the original configuration
  • Check the defrost thermostat and defrost control/timer for proper operation

Do-It-Yourself Stories from Customers like You Icing up in freezer and no air in refrigerator   Thomas G. • Old Bridge , NJ • June 16, 2020

Defrost heater and thermostat. Read more

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Kenmore Defrost Heater (Evaporator)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP67004188

This evaporator defrost heater melts frost from the evaporator coil during the automatic defrost cycle to restore airflow and stable temperatures. Replacing a failed heater helps prevent ice buildup that restricts cooling and leads to warm spots. What it does:

  • Heats the evaporator coil to clear frost/ice during defrost
  • Helps maintain proper airflow between freezer and fresh food sections
  • Typical symptoms: heavy frost on the back panel/evaporator, weak cooling or rising temperatures
  • Also cause evaporator fan noise from ice contact and longer run times
What's included:
  • 1 evaporator defrost heater
Install notes:
  • Disconnect power before servicing; allow any ice to thaw
  • Access the heater behind the freezer's rear panel; avoid damaging fins or refrigerant lines
  • Secure the heater and route wires exactly as original, keeping them clear of the fan and sharp edges
  • Restore power and verify the defrost cycle per the service procedure

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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Kenmore 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 heater went to ground   Randall F L. • Hendersonville , NC • November 25, 2025

Replaced the heater Read more

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Kenmore 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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Kenmore 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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Kenmore Defrost Heater & Bracket Assembly (Refrigerator)
Genuine Ge part
By: Ge
Part Number: WR51X444

This defrost heater and bracket assembly mounts at the evaporator and melts frost during the automatic defrost cycle. Restoring airflow across the coils helps bring temperatures back to normal and keeps your refrigerator cooling efficiently.

  • Heats the evaporator during defrost to clear frost and ice buildup
  • Helps prevent heavy frost on the freezer back wall and improves airflow
  • Supports stable refrigerator and freezer temperatures
  • Failure symptoms include thick frost on the evaporator cover, warmer fresh-food section, evaporator fan hitting ice, or frequent manual defrosting
What's included: 1 defrost heater with attached mounting bracket Install notes:
  • Disconnect power before servicing; use gloves and eye protection
  • Remove the freezer's rear interior panel to access the evaporator
  • Route wiring and position the heater and bracket exactly as the original; transfer any clips/shields
  • After installation, inspect related defrost components (thermostat and control) if defrost issues persist

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Kenmore Defrost Heater (Refrigerator)
Genuine Frigidaire part
By: Frigidaire
Part Number: 218657301

This refrigerator defrost heater warms the evaporator coil during the automatic defrost cycle to melt frost and keep air moving. Replacing a failed heater helps restore stable temperatures and prevents ice buildup on the freezer back panel. What it does:

  • Melts frost from the evaporator coil during the defrost cycle
  • Keeps airflow passages clear for consistent cooling
  • Failure can cause heavy frost on the freezer/back panel
  • Can result in fan noise from ice contact and longer run times
What's included:
  • One defrost heater assembly
Install notes:
  • Disconnect power before service; wear cut-resistant gloves
  • Access through the freezer rear panel; avoid damaging evaporator fins or tubing
  • Note wire routing and mounting orientation; reconnect using the original clips
  • Ensure the heater sits clear of plastic parts and wiring after installation

Do-It-Yourself Stories from Customers like You Warm fridge freezer not defrosting.   Jason L. • Penfield , NY • July 06, 2020

IMPORTANT: Defrost heater was more difficult to install around the evaporator coils than the APP installation videos show, but it can be installed. See below. FIRST: Unplug the fridge/freezer! I tested the thermostat, mechanical defrost timer, and the defrost heater with a ohmmeter and determined that the heater was bad. NOTE: Thermostat must be cold in order to be tested; otherwise, the switch inside won't close and you won't get a reading from the ohmmeter. Take a can of compressed air,... Read more

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Kenmore Defrost Heater (Evaporator)
Genuine Frigidaire part
By: Frigidaire
Part Number: 5317842502

The defrost heater mounts at the evaporator to melt accumulated frost during the automatic defrost cycle. Replacing a failed heater restores airflow and temperature stability, preventing ice buildup that blocks vents and reduces cooling performance. What it does:

  • Heats the evaporator coil to clear frost during the defrost cycle
  • Maintains airflow across the coil for consistent cooling
  • Common symptoms: heavy frost on the back wall or coils
  • Weak/no airflow or fan hitting ice; warmer temperatures; long run times
What's included:
  • One defrost heater
Install notes:
  • Disconnect power before servicing
  • Access the evaporator and allow heavy ice to thaw—do not force ice off the fins
  • Transfer any mounting clips and route wires like the original, away from sharp edges
  • Handle the element carefully; reinstall the evaporator cover before restoring power

Do-It-Yourself Stories from Customers like You Refrigerator tripping arc fault circuit breaker   William H. • Wilmot , WI • June 27, 2015

White Westinghouse refrigerator door was accidentally left open over night when it was humid, and moisture condensed on the interior. In the morning the arc fault circuit breaker was tripped. Tried letting the unit dry out, but it would still trip the breaker as an arc fault. Started unplugging various components, compressor, evaporator fan, finally the defrost heater before it could be plugged in without tripping the breaker. Although the defrost heater's resistance measured normally, when it... Read more

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Kenmore Evaporator Defrost Heater Assembly
Genuine Whirlpool part
By: Whirlpool
Part Number: WP12729127

This is the electric heating element that warms the evaporator during defrost. It clears frost from the coils so air can circulate, helping restore proper cooling and consistent temperatures.

  • Melts frost accumulation on the evaporator during the defrost cycle
  • Helps resolve symptoms like frost buildup, weak airflow, warm fridge section, or frequent icing
  • Supports stable temperatures and efficient cooling performance
What's included: Defrost heater assembly only (no additional hardware or thermostat included unless explicitly shown in the package) Install notes:
  • Unplug the appliance before service; allow ice to melt or carefully defrost as needed
  • Access is typically from the freezer section behind the rear panel
  • Handle the glass/metal element carefully; avoid bending or damaging terminals
  • Verify correct routing and secure connections; do not overtighten mounting clips

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Kenmore Heater
Genuine Whirlpool part
By: Whirlpool
Part Number: W10857624

This factory heater restores proper, controlled heat in the location your appliance was designed to warm. Replacing a failed heater helps eliminate freeze-ups or moisture-related issues so the system can operate as intended. What it does:

  • Supplies localized heat for the appliance's intended function (defrosting, anti-sweat, or freeze prevention)
  • Helps clear ice/frost that can restrict airflow or block passages
  • Can resolve performance issues tied to insufficient heat or a failed heater circuit
  • Typical signs include persistent frost/ice, moisture/condensation problems, or error codes related to the heater
What's included:
  • 1 heater
Install notes:
  • Disconnect power before servicing; turn off water supply if working near ice maker or dispenser components
  • Access and routing vary by model—photograph wiring and harness path before removal
  • Handle the element and wiring carefully; avoid contact with sharp fins and plastic liners
  • Ensure secure electrical connections and proper routing; do not allow the heater to rest against plastic surfaces

Do-It-Yourself Stories from Customers like You Defrost heater failure.   Michael M. • New Braunfels , TX • October 24, 2021

I changed the bimetal defrost thermostat, and the heating element and it worked like a champ! Read more

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Kenmore Defrost Heater (Evaporator)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP12049801

This defrost heater warms the evaporator coil during the automatic defrost cycle to melt frost and clear airflow. Replacing a failed heater helps prevent ice buildup and restores more consistent cooling performance throughout the refrigerator. What it does

  • Heats the evaporator during defrost cycles to melt accumulated frost
  • Keeps airflow paths clear so temperatures stay stable
  • Helps prevent frost-clogged coils that reduce cooling
  • Common signs of failure: heavy frost on the back wall/evaporator cover, weak cooling, evaporator fan hitting ice, or ice returning soon after a manual defrost
What's included
  • One defrost heater
Install notes
  • Disconnect power before servicing; wear cut-resistant gloves
  • Access is behind the freezer's rear evaporator cover; remove shelves/bins and the panel
  • Defrost heavy ice before removal to avoid damaging the coil or insulation
  • Transfer any original mounting clips/insulators and route wires exactly like the original; avoid bending the heating element

Do-It-Yourself Stories from Customers like You The frost was building up on the evaporator and the freezer wasn't cooling very well   Rex W. • Sheridan , WY • March 24, 2015

I removed the shelves and the shelf holders, took the back panel off, loosened the evaporator. Removed the heater element and the thermostat. Re-installed the evaporator the back panel, shelve holders and shelves. Then I located the defrost timer in the refrigerator. Read more

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Kenmore Heater
Genuine Whirlpool part
By: Whirlpool
Part Number: W11087201

The Heater is an OEM component specifically designed for Whirlpool bottom-mount refrigerators. Located within the fresh food compartment walls, it prevents condensation by maintaining warm air circulation along interior surfaces. 

Causes of a bad heater include deterioration of heating coils or electronic boards over many years, loose connections disrupting power delivery, or damage from moisture exposure.

Symptoms include:

  • Foggy or frosted exterior walls need frequent drying  
  • Puddles of water collecting beneath vegetable drawers
  • Musty odors developing within refrigerator shelves

This OEM replacement is also compatible with Kenmore, KitchenAid, and some GE models.

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Kenmore Defrost Heater (Evaporator)
Genuine Frigidaire part
By: Frigidaire
Part Number: 5303918203

The defrost heater warms the evaporator during automatic defrost to melt frost so air can circulate freely. Replacing a failed heater helps stop heavy ice buildup, restore cooling performance, and prevent fan noise from ice contact.

  • Clears frost from the evaporator so cold air can move between compartments
  • Helps maintain stable temperatures and efficient cooling
  • Common symptoms of a failed heater: thick frost on the back freezer panel, poor cooling, or fan scraping ice
  • Electric resistance element that often tests open (no continuity) when failed
What's included: 1 defrost heater. Install notes:
  • Disconnect power before servicing; do not work on a live appliance
  • Remove freezer shelves/drawers and the rear panel to access the evaporator and heater
  • Allow ice to thaw; handle fins and tubing carefully to avoid damage
  • Route wiring and clips as originally installed and ensure tight electrical connections before reassembly

Do-It-Yourself Stories from Customers like You Not cooling as it should.   Robert A. • Merced , CA • December 05, 2021

R&R "defrost heater". Read more

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Kenmore Defrost Heater (Evaporator)
Genuine Whirlpool part
By: Whirlpool
Part Number: WP10428409

This evaporator defrost heater melts frost from the freezer coils during the automatic defrost cycle to keep airflow unobstructed and temperatures stable. Replace it if frost quickly returns after manual defrost or cooling performance declines. What it does:

  • Heats the evaporator at set intervals to clear frost/ice
  • Restores proper airflow to maintain consistent cooling
  • Common signs of failure include heavy frost on the rear freezer panel, weak airflow or warmer fresh food temps, longer run times, or the evaporator fan striking ice
  • An open reading on a continuity test indicates a failed heater
What's included:
  • 1 evaporator defrost heater
Install notes:
  • Disconnect power before servicing
  • Access the heater behind the freezer's rear panel; it mounts at/under the evaporator
  • Note wire routing and clip locations; transfer any reusable hardware from the original part
  • Avoid bending the element or damaging evaporator fins; fully defrost ice before reassembly

Do-It-Yourself Stories from Customers like You The freezer section of an amana bci20tw was not getting cold enough and the back panel in the freezer was covered in ice   Jeff H. • Gettysburg , PA • January 27, 2025

After doing some research, I guessed it was either a faulty defrost timer, defrost thermostat, defrost heater, or some combination of those. Using part location diagrams for my Amana BC120TW I started by looking for the evaporator coils since they obviously weren't producing enough cold. Upon removing the evaporator coil cover, I found the evaporator coils frozen into 1 solid block of ice. Using a heat gun, I carefully defrosted the coils so I could access the defrost thermostat and heater... Read more

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Kenmore Defrost Heater Assembly
Genuine Whirlpool part
By: Whirlpool
Part Number: WP67002135

This defrost heater assembly melts frost from the evaporator during the defrost cycle to keep air flowing and maintain consistent temperatures. Replacing a failed heater helps restore proper cooling performance and prevents excessive frost buildup.

  • Heats the evaporator coil during defrost to clear ice and frost
  • Helps resolve symptoms like heavy frost/ice on the evaporator, poor cooling, or warm fridge/cold freezer imbalance
  • Can address frequent evaporator fan icing or blocked air passages
What's included: One defrost heater assembly as pictured Install notes:
  • Disconnect power before servicing; allow any ice to thaw safely
  • Access is typically behind the rear panel of the freezer compartment
  • Handle the heater and wiring carefully; avoid bending or stressing terminals
  • Verify proper placement of any clips/shields and wiring connections match original

Do-It-Yourself Stories from Customers like You Freezer was cold refrigerator was warm evap coils were all frosted up   Greg H. • Elmhurst , IL • January 08, 2018

FREEZER ON BOTTOM. TOOK OUT DRAWERS AND BACK PANEL. USED A HAIR DRYER TO DEFROST COILS THEN PUT IN A NEW HEATER, DEFROST & DEFROST THERMOSTAT. I FIGURED THEY WORK TOGETHER AND HAD THE SAME WEAR PLUS WAS EASIER TO DO AT ONE TIME. Read more

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Kenmore Defrost Heater (Evaporator)
Genuine Frigidaire part
By: Frigidaire
Part Number: 240356217

This defrost heater mounts at the evaporator and melts frost during the automatic defrost cycle to keep airflow clear and temperatures steady. Replace it if ice builds up on the freezer wall or the refrigerator section warms.

  • Heats the evaporator during defrost to clear frost and ice
  • Restores normal airflow between freezer and fresh food compartments
  • Common symptoms: frost/ice on back freezer panel, warm refrigerator section, longer run times
  • Can prevent fan noise or blockage caused by ice around the evaporator
What's included: 1 defrost heater Install notes:
  • Disconnect power and remove the freezer rear panel to access the evaporator
  • Handle the heater carefully and avoid damaging the evaporator fins
  • Route wires and secure the heater exactly like the original, reusing any clips/brackets
  • Restore power and verify defrost operation; if frost returns, check the defrost thermostat and control

Do-It-Yourself Stories from Customers like You Defrost cycle was not working thus ice build up on evaporator coils was blocking vent to refrigerator compartment which was not getting cool freezer section seemed to be fine   Jean F. • Monroe Township , NJ • September 05, 2016

Replaced defrost timer, defrost thermostat, and defrost heater. I didn't have a continuity meter to check old parts so replaced all three. Also cleaned condenser coils. Used your videos to help with repair. Read more

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