How to Fix Maytag 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: Easy

Problem: Exhaust thermistor failure or restricted airflow triggering thermal protection

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix Dryer Error

Disconnect power and remove rear panel of dryer.
Locate exhaust thermistor mounted on exhaust duct near heater assembly.
Disconnect wiring harness and measure resistance with multimeter at room temperature.
Expected reading: 10k-12k ohms at 70°F. Replace if reading is outside 5k-20k ohm range.
Before replacing thermistor, inspect entire vent system: remove lint screen, check for blockages in flexible hose behind dryer, verify exterior vent flap operates freely.
Clean blower wheel housing of lint buildup using vacuum and brush.
Replace thermistor WP3392519 if faulty—remove mounting screw and install new sensor ensuring proper seating in duct wall.
Reconnect wiring and reassemble.
Test with short cycle while monitoring exhaust temperature (should reach 135-155°F for cotton cycles).

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OEM Part #: WP3392519

Estimated Market Price: $15

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

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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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Browse all Maytag error codes: Maytag Error Codes