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๐ RECOMMENDED PART
4387503 Refrigerator Bimetal Defrost Thermostat by Seentech - Compatible with Whirlpool, Ken-more Refrigerator/Freezer: Replaces PS11742474
- MODEL NUMBER: 4387503 Refrigerator Bimetal Defrost Thermostat. Replace: AP6009317, 2149641, 2149643, 2163894, 2172694, 2182380, 2183072, 2221677, 4343917, 4387503, 61002113, R0950042, WP4387503VP
- EASY TO INSTALL: Work with brands Whirlpool, Ken-more, Roper.. Fits models: 10642106301, 10660162990, 106.708764, 106.9630211, 106.9718280, 106.9808715, 106.9808785, 10642102300, 10642102301, 10642104300, 10642106300 ...
- EASY DIY FIX: 4387503 Refrigerator Bimetal Defrost Thermostat has two wires (7.9โ ) that connect inline with the heater and a clip on the body of the thermostat that allows it to latch onto the evaporator tubing. This...
- high quality PART: The replacement part is made from durable high quality material and well-tested by the manufacturer - Ensure long-lasting and effective performance. This part fixes the following symptoms: Leaking |...
- ๐๐ข๐ก๐๐๐๐๐ก๐ง ๐ฃ๐จ๐ฅ๐๐๐๐ฆ๐๐ฆ: Enjoy a 30-day return window on your purchase. Your satisfaction is our priority. If you have any questions, please don't hesitate to contact our customer service team.
What the 4387503 does
The defrost thermostat monitors the evaporator coil temperature and signals the defrost heater to activate when the temperature drops below a set point, preventing excessive ice buildup. It opens the circuit to the defrost heater once the coil reaches a safe temperature.
Symptoms when this part fails
- Excessive frost buildup in the freezer
- Refrigerator not cooling but freezer works
- Freezer too warm or cold spots
- Defrost cycle not completing
- Water leaking from the freezer
Compatibility
Fits the LG family. Specifically:
- Any unit originally equipped with OEM part number(s): PS11742474, AP6009317, 2149641, 2149643, 2163894, 2172694, 2182380, 2183072.
- Check the model/rating plate inside your appliance and compare it against the fitment table on the product listing before ordering โ this guide does not list specific compatible models because Amazon does not provide verified fitment data through this pipeline.
Also replaces: PS11742474, AP6009317, 2149641, 2149643, 2163894, 2172694, 2182380, 2183072
Tools you'll need
- Phillips screwdriver
- Flathead screwdriver
- Nut driver
- Pliers
Difficulty: Moderate ยท Time: 45-60 minutes
How to install the 4387503, step by step
- Disconnect the refrigerator from power.
- Remove freezer shelves and drawers to access the rear panel.
- Unscrew and remove the evaporator cover panel to expose the coil.
- Locate the defrost thermostat clipped onto the evaporator coil.
- Carefully disconnect the old thermostat's wires and remove it.
- Connect the new thermostat's wires and securely clip it onto the coil.
- Reinstall the evaporator cover, then replace shelves and drawers.
- Restore power to the refrigerator and test for proper operation.
Related troubleshooting
If swapping this part doesn't fix the issue, check these next: