Refrigerator Defrost Timer, Adaptive Defrost Control
Genuine Whirlpool part
By: Whirlpool
Part Number: WP4391974
Defrost timer that advances the refrigerator's defrost cycle at roughly six-hour intervals to help prevent excessive frost buildup and keep cooling consistent. Replaces a failed timer to restore regular defrost scheduling. What it does:
- Advances the defrost cycle so the heater can melt frost from the evaporator on a timed schedule.
- Helps prevent heavy ice buildup that can reduce airflow and cooling performance.
- Common symptoms of a failing timer: excessive frost or ice accumulation, compressor running constantly, or inconsistent temperatures.
- Works with mechanical defrost systems to alternate between cooling and defrost intervals.
What's included: One defrost timer. Install notes:
- Disconnect power to the appliance before servicing to avoid electrical shock.
- Handle connectors and wiring carefully; ensure all terminals are fully seated.
- Mounting hardware and connector types can vary by model—retain original fasteners and note wiring positions before removal.
Do-It-Yourself Stories from Customers like You
Refrigerator wouldn't get cold Steven S. • St. Joseph , MO • September 29, 2014
I replaced the defrost timer. It's a 27 year old Montgomery Wards refrigerator and I couldn't find the correct timer anywhere until I contacted AppliancePartsPros. Great service.
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$107.95
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Genuine Whirlpool part
By: Whirlpool
Part Number: WP12566102
This adaptive defrost control board manages and adjusts refrigerator defrost cycles to help prevent excess frost buildup while keeping temperatures steady. Replaces a failed control board to restore automatic defrost timing and normal cooling performance. What it does
- Monitors evap-coil and compressor run patterns to trigger appropriate defrost cycles.
- Helps reduce excessive frost on the evaporator that can cause poor cooling or compressor overwork.
- Commonly replaced when the refrigerator fails to defrost, shows persistent frost/ice buildup, or runs unusually long cycles.
- Works as the control logic for defrost sequencing and related temperature/regulation signals.
What's included
- One adaptive defrost control board
Install notes
- Disconnect power to the appliance before starting any repair to avoid shock or damage.
- Handle the board by its edges and avoid touching electronics; discharge static first if possible.
- Inspect wiring harnesses and connectors for damage before reconnecting; secure the board with original mounting hardware.
- After installation, restore power and allow the appliance to run through one full cycle to verify normal operation.
Do-It-Yourself Stories from Customers like You
Cold freezer warm refrigerator but only in the humid summer months Bob P. • South Glastonbury , CT • July 27, 2016
New adaptive defrost control board
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$228.58
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$8.50
Genuine Ge part
By: Ge
Part Number: WR9X560
This mechanical defrost timer controls the refrigeration cycle by advancing the fridge from cooling to defrost at set intervals, helping prevent frost build-up and maintain efficient cooling performance. What it does:
- Advances compressor and defrost heater circuits between cooling and defrost modes
- Stops excessive frost accumulation on evaporator coils when operating correctly
- Commonly replaced when refrigerator cycles incorrectly or ice builds on coils
- Fits as a direct-replacement time-control for compatible GE refrigerators
What's included:
- One mechanical defrost timer (single unit)
Install notes:
- Disconnect power to the appliance before inspecting or replacing the timer
- Mounts and wiring match factory connector locations; transfer any bracket or knob from the old unit if required
- Verify timer position and settings per the refrigerator service instructions after installation
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Genuine Danby part
By: Danby
Part Number: 1.01.07.03.001
$93.41
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$18.68
Genuine Frigidaire part
By: Frigidaire
Part Number: 5303917634
8hr 21min, universal timer
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$59.46
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$11.30
Genuine Ge part
By: Ge
Part Number: WR09X10032
$151.95
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$182.34
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$30.39
Genuine Whirlpool part
By: Whirlpool
Part Number: W11609704
This Defrost Timer cycles the unit between cooling and automatic defrost. Replace it if your appliance won't defrost or stays stuck in defrost, causing frost buildup, warm temperatures, or intermittent/no cooling.
- Controls automatic defrost intervals by switching from cooling to defrost and back
- Supplies power to the defrost circuit/heater during the defrost portion of the cycle
- Common failure symptoms: heavy frost on the evaporator/back wall, warm fresh-food section, runs constantly with no defrost, or no cooling if stuck in defrost
- Stop advancing through cycles or advance intermittently
What's included: 1 defrost timer Install notes:
- Disconnect power before servicing; electrical components can hold live voltage
- Location varies by model: typically in the control housing inside the refrigerator or behind a rear/service panel
- Photograph/label wire positions and transfer connectors one at a time to the new timer
- Mount securely, restore power, and verify normal cooling/defrost operation
If symptoms persist after replacement, also check the defrost thermostat (bi-metal) and defrost heater.
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Genuine Frigidaire part
By: Frigidaire
Part Number: 5304513666
This electronic control assembly governs the oven's functions and user interface, restoring reliable cycle selection, temperature control, and display feedback for compatible Frigidaire ranges and wall ovens. What it does:
- Replaces a failed oven control board to restore accurate temperature regulation and bake/ broil cycle control.
- Fixes symptoms like unresponsive control panel, incorrect oven cycles, or a blank/erratic display.
- Manages timed functions, broil/bake relay switching, and on-board diagnostics used by the appliance.
- Works with the existing keypad, wiring harness, and door/latch assemblies when those parts are functioning.
What's included:
- One control assembly (electronic oven control)
Install notes:
- Disconnect power at the breaker or unplug the appliance before starting any work.
- Handle the board and connectors carefully to avoid electrostatic discharge or damage to components.
- Verify harness connections and mounting orientation before securing the assembly.
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Genuine Ge part
By: Ge
Part Number: WR9X516
$55.19
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$20.13
Genuine Whirlpool part
By: Whirlpool
Part Number: WP2304093
Electronic adaptive defrost control board.
Do-It-Yourself Stories from Customers like You
Warm freezer. John P. • Arden , NC • August 27, 2017
Bought a defrost board from Appliance Parts Pros and installed it.
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$45.72
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Genuine Ge part
By: Ge
Part Number: WR9X331
This defrost timer control kit cycles the refrigerator's defrost mode to prevent excessive frost build-up and help maintain proper cooling. Replaces a worn or failed defrost timer to restore normal defrost sequencing. What it does:
- Advances the appliance between cooling and defrost cycles to clear evaporator frost
- Helps prevent heavy ice buildup that can reduce cooling efficiency
- Can stop repetitive compressor cycling caused by a stuck defrost timer
- Commonly used when the freezer is frosting over or temperatures are inconsistent
What's included: One defrost timer control kit (timer assembly) Install notes:
- Disconnect power to the appliance before beginning work to avoid shock
- Handle electrical connectors carefully; match and secure wiring exactly as removed
- Basic hand tools required; refer to the appliance service manual for model-specific guidance
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$11.08
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Genuine Whirlpool part
By: Whirlpool
Part Number: R0168029
Kit, defrost timer (230 vac)
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$78.95
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$15.00
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Genuine Whirlpool part
By: Whirlpool
Part Number: WP2166867
$98.64
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$18.74
Out Of Stock
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Genuine Whirlpool part
By: Whirlpool
Part Number: WP61003601
This mechanical rotary defrost timer controls and advances the refrigerator's defrost cycle so the evaporator periodically melts frost buildup, helping restore normal cooling. It replaces a worn or stuck timer to return automatic defrost operation. What it does
- Advances the fridge's defrost cycle on a set schedule so the evaporator heats and melts frost
- Stops the compressor during defrost so frost is removed without cooling loss
- Common symptom: excessive frost buildup on evaporator or freezer compartment
- Common symptom: refrigerator or freezer runs constantly or does not cool properly
What's included
- One defrost timer (rotary)
Install notes
- Disconnect power to the appliance before starting any repair
- Locate timer (control panel, kick plate, or rear panel depending on model) and note original orientation before removal
- Remove mounting screws and electrical connector(s); install new timer in the same position and reconnect wiring
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Genuine Whirlpool part
By: Whirlpool
Part Number: WPW10392184
This electronic control board replaces the console control module that manages oven and cooktop functions, restoring reliable touch/control panel operation and timed cooking features. What it does:
- Receives user inputs from the console and sends commands to heating elements, igniters, timers and displays
- Controls oven temperature regulation, bake/broil cycles and timed/clock functions
- Resolves symptoms like unresponsive touchpad/display, oven not starting or heating inconsistently, and erroneous control error codes
- Works as the main logic board for sequence and safety interlocks on compatible ranges/ovens
What's included: One electronic control board Install notes:
- Always disconnect power at the breaker or unplug the appliance before accessing the control area
- Handle the board by the edges and avoid static discharge; wear an anti-static wrist strap if available
- Retain all mounting hardware and wire connections; match connectors carefully during reassembly
- Verify function with a full power-up test after installation
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Genuine Ge part
By: Ge
Part Number: WR55X10229
$79.72
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$16.03
Out Of Stock
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