E1Whirlpool Dryer — Whirlpool Dryer E1 Error Code
Thermistor open circuit
Severity
Critical
Difficulty
Moderate
Est. Cost
What's Happening
The thermistor (temperature sensor) has failed with an open circuit — it reads infinite resistance. The dryer can't monitor its internal temperature, so it won't run to prevent potential overheating.
How to Fix It
Unplug the dryer and locate the thermistor on the blower housing. Test its resistance with a multimeter — it should read about 10,000 ohms at room temperature. If it reads infinite (open), replace the thermistor. Also check the wiring harness for breaks.
Frequently Asked Questions
What does E1 mean on a Whirlpool dryer?
E1 means the temperature sensor (thermistor) has an open circuit. The dryer can't read temperature and won't run as a safety precaution.
How do I test a Whirlpool dryer thermistor?
Unplug the dryer, locate the thermistor on the blower housing, and measure resistance with a multimeter. It should read about 10,000 ohms at room temperature. If it reads infinite, replace it.
How much does a Whirlpool dryer thermistor cost?
The thermistor itself is typically $10–$25. It's one of the cheaper dryer repairs and accessible on most models with basic tools.