How to Fix Kenmore Dryer Error F04

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

Error Code: Dryer Difficulty: Moderate

Problem: Thermistor circuit failure during heating cycle

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix Dryer Error

Disconnect power at circuit breaker.
Remove rear access panel.
Locate thermistor sensor and wiring harness.
Inspect wiring for damage, corrosion, or loose connections.
Test sensor resistance at various temperatures with multimeter.
Check continuity of sensor circuit from control board.
If sensor is faulty, replace thermistor assembly.
If wiring is damaged, repair or replace wire harness section with proper gauge wire.
Clean electrical contacts with contact cleaner.
Restore power and test heating cycle operation with temperature verification.

OEM Part #: WP3391270

Estimated Market Price: $85

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 Kenmore 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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