How to Fix Maytag Refrigerator Error LED Flash Code 3

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⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: Refrigerator Difficulty: Moderate

Problem: Service mode diagnostic: 3 flashes = defrost thermistor fault (matches F3)

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix Refrigerator Error

Enter service mode and observe 3-flash pattern.
Access evaporator compartment and locate defrost thermistor clipped to evaporator tubing.
Test resistance at room temperature (8k-10kΩ) and during defrost cycle (~14kΩ at 32°F).
Replace defrost thermistor WPW10316428 if readings unstable or open/short circuit.
Verify defrost heater operation during forced defrost test #
Clear fault history via test #

OEM Part #: WPW10316428

Estimated Market Price: $35-55

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

Get the ‘Secret Service Mode’ Cheat Sheet for your Maytag model. Includes an easy-to-read list of every error code and quick diagnostic tips.

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Estimated repair cost (parts, or parts + labor) Most DIY parts are $50–$250. If you have a quote, use the total.

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EPA Section 608 Certified Technician with 18+ years experience.