Whirlpool Dryer Error Code E:18

E:18 is a Heater-NTC fault indicating that the dryer started a program but detected no temperature rise. The control board monitors the NTC thermistor to confirm heat output, and when that confirmation is absent, the code is triggered. The fault can point to a broken heater circuit, a failed bimetal switch, a faulty thermistor, or damaged sensor wiring.

No, you should not continue using the dryer while E:18 is active. The dryer is not producing heat as intended, and the underlying fault, such as a failed safety switch or damaged wiring, could indicate a condition that led to or could cause overheating. It is best to leave the dryer unplugged until the cause is diagnosed and repaired.

Repair costs vary depending on which component has failed. A replacement bimetal safety switch is generally an inexpensive part, typically in the range of $10 to $30, while a heating element can cost between $25 and $80 depending on the model. If professional labor is included, total repair costs typically fall in the range of $100 to $250, though this can vary based on your location and the technician's rates.

Some aspects of this repair are approachable for experienced DIYers, such as testing the bimetal switch and thermistor for continuity with a multimeter and inspecting wiring connectors for damage. Replacing the heating element or bimetal switch involves working inside the dryer cabinet and disconnecting electrical components, which requires comfort with appliance disassembly and basic electrical safety. If you are not confident working with these components, a qualified technician should perform the repair.

Resetting the dryer may temporarily clear the code, but it will return as soon as the dryer starts a cycle and again fails to detect a temperature rise. The underlying cause in the heater circuit or thermistor must be diagnosed and corrected for the fault to be permanently resolved. A reset alone does not fix any failed component.