dE — Defrost System Error
Defrost cycle did not complete properly. Evaporator coil may be icing over, restricting freezer airflow.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Moderate
- Verified against
- maytag.com ↗
How to fix it
- Empty the freezer and remove the rear inner panel to expose the evaporator.
- Thaw any ice buildup with a hair dryer on low — protect plastics.
- Test the defrost heater resistance (typically 25-50 ohms).
- Test the defrost bimetal/thermostat for continuity when cold.
- Test the defrost thermistor at ~16k ohms at 32°F.
- Replace any failed component; if all check good, replace the main control.
Why it happens
Typical signs: dE displayed · Freezer cold but fresh food warm · Ice buildup on rear evaporator panel · Fan noise from freezer (fan hitting ice)
- Failed defrost heater Open heater element.
- Failed defrost thermostat/bimetal Stuck open, heater never enabled.
- Failed defrost sensor Thermistor on evap not reading correctly.
- Failed main control Defrost circuit on board failed.
Replace your water filter
A clogged or overdue water filter is a common cause of low water and ice flow on Maytag refrigerators — they are meant to be changed about every 6 months. The OEM-style filter that fits most Maytag refrigerators is the EDR1RXD1 ($40-50 OEM, $15-25 compatible).
- Whirlpool EDR1RXD1 refrigerator water filter OEM water filterAmazon →
Not sure which filter fits your model? See the full compatibility guide →
Parts you may need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More Maytag refrigerator codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: maytag.com.